Analysis Overview
SHA256
35b48e9472a04ef28d51e5af06dafc8d8573d22bd4159cfc5007b7321a0aa337
Threat Level: Known bad
The file stub.exe was found to be: Known bad.
Malicious Activity Summary
Stealerium family
Stealerium
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Kills process with taskkill
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-07-05 13:15
Signatures
Stealerium family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2023-07-05 13:15
Reported
2023-07-05 13:17
Platform
win10v2004-20230703-en
Max time kernel
139s
Max time network
158s
Command Line
Signatures
Stealerium
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\stub.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.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:\Users\Admin\AppData\Local\Temp\stub.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\stub.exe
"C:\Users\Admin\AppData\Local\Temp\stub.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp2390.tmp.bat
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 456
C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.19.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 164.113.223.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.208.79.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.173.189.20.in-addr.arpa | udp |
Files
memory/456-133-0x00000000009A0000-0x0000000000B32000-memory.dmp
memory/456-134-0x00000000054E0000-0x0000000005546000-memory.dmp
memory/456-135-0x00000000054D0000-0x00000000054E0000-memory.dmp
memory/456-137-0x00000000054D0000-0x00000000054E0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp2390.tmp.bat
| MD5 | b5b0fa5de86c26b5f0e953a6ed275293 |
| SHA1 | 6a8d6e2d51bf560511dbce57a9924861aaf8e057 |
| SHA256 | c2c3f15391251c01599300ed32800ac4780c10b65da430d1c343c5cf1ba3419c |
| SHA512 | fe769db6faf7986fd3e2286d2da0a20f40c4ac7b32cd4968735f8c00367691a3160199c662a28710c4fb10d12e26fbec565efe704c3d4b5344dbac5cd7c0a28c |
Analysis: behavioral1
Detonation Overview
Submitted
2023-07-05 13:15
Reported
2023-07-05 13:17
Platform
win7-20230703-en
Max time kernel
28s
Max time network
32s
Command Line
Signatures
Stealerium
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.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:\Users\Admin\AppData\Local\Temp\stub.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\stub.exe
"C:\Users\Admin\AppData\Local\Temp\stub.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp3766.tmp.bat
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2352
C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
Network
Files
memory/2352-54-0x0000000000230000-0x00000000003C2000-memory.dmp
memory/2352-55-0x0000000004BA0000-0x0000000004BE0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp3766.tmp.bat
| MD5 | f0fcfd0d77c58b3964a023019fe217ac |
| SHA1 | a1ce4f6f596901778c3fa4222809771bf901c263 |
| SHA256 | f0c1609f938b9911c4ed9859d79dfe7a3997001bb5453bc386af8dab53e7ad4c |
| SHA512 | e1e66b8ff546eca25acf947106f11d66db408ee1445c0fef7c7d385eea82a8535147c9db650a8aa34f095022cd36b1571f9e33cb945ffc78bea6802b3d114c05 |