Analysis
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max time kernel
91s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01-02-2023 06:07
Behavioral task
behavioral1
Sample
2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe
Resource
win10v2004-20220812-en
General
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Target
2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe
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Size
200KB
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MD5
ddee3051b544961caf086b496a1335eb
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SHA1
94a0b05c3599648dfc7f4a0f89ce7fa0f923fd26
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SHA256
2082e713282ab51284141b3dbd96f27bd7c27dec371c800f678916a1719bbb83
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SHA512
019e8b6a3c662fe98e2d8bab6f47f007c56b1a1450dfd149a9383c93d96e448d6b8187d3700462f7a22a163a505777dcc314b144ccdb2d001b704ca4048d5afa
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SSDEEP
3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIM1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNl1Ljo3c
Malware Config
Signatures
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Oski
Oski is an infostealer targeting browser data, crypto wallets.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe -
Loads dropped DLL 3 IoCs
pid Process 488 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe 488 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe 488 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe -
Kills process with taskkill 1 IoCs
pid Process 3192 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3192 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 488 wrote to memory of 2344 488 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe 79 PID 488 wrote to memory of 2344 488 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe 79 PID 488 wrote to memory of 2344 488 2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe 79 PID 2344 wrote to memory of 3192 2344 cmd.exe 82 PID 2344 wrote to memory of 3192 2344 cmd.exe 82 PID 2344 wrote to memory of 3192 2344 cmd.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe"C:\Users\Admin\AppData\Local\Temp\2023-02-01_ddee3051b544961caf086b496a1335eb_mafia.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:488 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /pid 488 & erase C:\Users\Admin\AppData\Local\Temp\2023-02-01_ddee3051b544961caf086b496a1335eb_ma & RD /S /Q C:\\ProgramData\\667741498912992\\* & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Windows\SysWOW64\taskkill.exetaskkill /pid 4883⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3192
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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Filesize
630KB
MD5e477a96c8f2b18d6b5c27bde49c990bf
SHA1e980c9bf41330d1e5bd04556db4646a0210f7409
SHA25616574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660
SHA512335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c