Analysis Overview
SHA256
2e77a1b324229a10ce5ac15a916526eff4a1e44c291bb918d6ed5329bc56f81b
Threat Level: Known bad
The file 2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia was found to be: Known bad.
Malicious Activity Summary
Oski family
Oski
Downloads MZ/PE file
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Kills process with taskkill
Checks processor information in registry
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-01-10 05:57
Signatures
Oski family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-10 05:57
Reported
2024-01-10 06:27
Platform
win7-20231129-en
Max time kernel
142s
Max time network
149s
Command Line
Signatures
Downloads MZ/PE file
Processes
C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 9entrevera.sa.com | udp |
| AU | 103.83.194.50:80 | 9entrevera.sa.com | tcp |
| AU | 103.83.194.50:80 | 9entrevera.sa.com | tcp |
| AU | 103.83.194.50:80 | 9entrevera.sa.com | tcp |
| AU | 103.83.194.50:80 | 9entrevera.sa.com | tcp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-10 05:57
Reported
2024-01-10 06:27
Platform
win10v2004-20231215-en
Max time kernel
147s
Max time network
155s
Command Line
Signatures
Oski
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | N/A |
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3164 wrote to memory of 2928 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3164 wrote to memory of 2928 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3164 wrote to memory of 2928 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2928 wrote to memory of 2536 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2928 wrote to memory of 2536 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2928 wrote to memory of 2536 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_karagany_mafia.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /pid 3164 & erase C:\Users\Admin\AppData\Local\Temp\2024-01-09_8c36f8a010e9781bda4076852efb05a7_ka & RD /S /Q C:\\ProgramData\\488918262702508\\* & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 3164
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 6.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9entrevera.sa.com | udp |
| AU | 103.83.194.50:80 | 9entrevera.sa.com | tcp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 50.194.83.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| AU | 103.83.194.50:80 | 9entrevera.sa.com | tcp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| AU | 103.83.194.50:80 | 9entrevera.sa.com | tcp |
| US | 8.8.8.8:53 | 199.111.78.13.in-addr.arpa | udp |
Files
C:\ProgramData\sqlite3.dll
| MD5 | cb3e4e15851562e13ba20fc2932997c2 |
| SHA1 | 1e604837c5523e571c1856ba751e14bbf3253993 |
| SHA256 | dc2344436f412ca619f210758b8acd93e2d4e7f6cc79ec744b2e418d0de23175 |
| SHA512 | 2c5cf6d03e37153083296dbee09f0b74108d80661d364592fcb96fd146536722cb36c17045106b70d38c26f74a84447969db467119141c376421772377f08d56 |
memory/3164-11-0x0000000060900000-0x0000000060992000-memory.dmp
C:\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |
C:\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |