Analysis Overview
SHA256
fff08a4d2f28a06068b3a440cf4c5ee8f30950af3345c80efcb05839be155f26
Threat Level: Known bad
The file primodal_steam_module.exe was found to be: Known bad.
Malicious Activity Summary
DCRat payload
Dcrat family
DcRat
DCRat payload
Disables Task Manager via registry modification
Executes dropped EXE
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Modifies registry key
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-17 08:20
Signatures
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Dcrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-17 08:20
Reported
2024-06-17 08:22
Platform
win11-20240611-en
Max time kernel
146s
Max time network
150s
Command Line
Signatures
DcRat
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Disables Task Manager via registry modification
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\discord\discord.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1560405787-796225086-678739705-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\primodal_steam_module.exe | N/A |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\discord\discord.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\primodal_steam_module.exe
"C:\Users\Admin\AppData\Local\Temp\primodal_steam_module.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\discord\s1YcuafMgFZcfjAcIZkCnl2ldkoG.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\discord\6hjim1XI6LHKwsRzcTW0H.bat" "
C:\Users\Admin\AppData\Roaming\discord\discord.exe
"C:\Users\Admin\AppData\Roaming\\discord\discord.exe"
C:\Windows\SysWOW64\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Roaming\discord\s1YcuafMgFZcfjAcIZkCnl2ldkoG.vbe
| MD5 | 882088368dcd0aeacfbd6ecb5c6a4bf5 |
| SHA1 | ceff64387f97e543cccf1d1967256c5709771006 |
| SHA256 | 95a165aaa06147d9e24952f1f497ebcfee7edc8fec0c8dc86cc4da4a63d23b0b |
| SHA512 | 8e05bd8f2d14b6c7fd5f923ede83b723ff26f93dc9d21fa6d21e4a3e097f4472abbfe7554911a0ffa48a950ec421f5ac5077a9b9b044c73e5ab5ad442f6ef830 |
C:\Users\Admin\AppData\Roaming\discord\6hjim1XI6LHKwsRzcTW0H.bat
| MD5 | 1c21369bf1354782eb9c430fc1351179 |
| SHA1 | 06d6a05de2c90239fd34e5eef61748cf0817f109 |
| SHA256 | ef5c3a480c4fbb67d912fa95920a71bc8b556ec7d270aabe9985dfa379369ab5 |
| SHA512 | 9e75859de45774157a9be88e7914a87d234dff6e4794fb25d4d8bb04f55f17d289213547ec7cf48170a3e3f9a7cb965969136b9885bbac9ce92e867edec75e18 |
C:\Users\Admin\AppData\Roaming\discord\discord.exe
| MD5 | f6a2be982232660a4ef7923c9ea2a0f4 |
| SHA1 | 49fd2c8a022c15d0286551fc81b2395e29079c7e |
| SHA256 | db44adcc5a6919a3e2c56230a0b755ea6eb25cd9cfb4c7aceda76a9c3fad5fc2 |
| SHA512 | 97e4dddd23a33ffb5678bc361ff00a8418cc3a6ce7ff86c1f76e29ecb4149f3fb1cb112fde77ab067a9fcda3ef46cfa2b9b6c2fbfc0d68371db34adf39b47284 |
memory/4228-13-0x00007FF8AD1F3000-0x00007FF8AD1F5000-memory.dmp
memory/4228-12-0x00000000004A0000-0x0000000000784000-memory.dmp
memory/4228-14-0x00000000010D0000-0x00000000010DE000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-17 08:20
Reported
2024-06-17 08:22
Platform
win10v2004-20240611-en
Max time kernel
131s
Max time network
134s
Command Line
Signatures
DcRat
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Disables Task Manager via registry modification
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\primodal_steam_module.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\discord\discord.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\primodal_steam_module.exe | N/A |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\discord\discord.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\primodal_steam_module.exe
"C:\Users\Admin\AppData\Local\Temp\primodal_steam_module.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\discord\s1YcuafMgFZcfjAcIZkCnl2ldkoG.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\discord\6hjim1XI6LHKwsRzcTW0H.bat" "
C:\Users\Admin\AppData\Roaming\discord\discord.exe
"C:\Users\Admin\AppData\Roaming\\discord\discord.exe"
C:\Windows\SysWOW64\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3044,i,12594301322143882025,16832588342008839449,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 152.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Roaming\discord\s1YcuafMgFZcfjAcIZkCnl2ldkoG.vbe
| MD5 | 882088368dcd0aeacfbd6ecb5c6a4bf5 |
| SHA1 | ceff64387f97e543cccf1d1967256c5709771006 |
| SHA256 | 95a165aaa06147d9e24952f1f497ebcfee7edc8fec0c8dc86cc4da4a63d23b0b |
| SHA512 | 8e05bd8f2d14b6c7fd5f923ede83b723ff26f93dc9d21fa6d21e4a3e097f4472abbfe7554911a0ffa48a950ec421f5ac5077a9b9b044c73e5ab5ad442f6ef830 |
C:\Users\Admin\AppData\Roaming\discord\6hjim1XI6LHKwsRzcTW0H.bat
| MD5 | 1c21369bf1354782eb9c430fc1351179 |
| SHA1 | 06d6a05de2c90239fd34e5eef61748cf0817f109 |
| SHA256 | ef5c3a480c4fbb67d912fa95920a71bc8b556ec7d270aabe9985dfa379369ab5 |
| SHA512 | 9e75859de45774157a9be88e7914a87d234dff6e4794fb25d4d8bb04f55f17d289213547ec7cf48170a3e3f9a7cb965969136b9885bbac9ce92e867edec75e18 |
C:\Users\Admin\AppData\Roaming\discord\discord.exe
| MD5 | f6a2be982232660a4ef7923c9ea2a0f4 |
| SHA1 | 49fd2c8a022c15d0286551fc81b2395e29079c7e |
| SHA256 | db44adcc5a6919a3e2c56230a0b755ea6eb25cd9cfb4c7aceda76a9c3fad5fc2 |
| SHA512 | 97e4dddd23a33ffb5678bc361ff00a8418cc3a6ce7ff86c1f76e29ecb4149f3fb1cb112fde77ab067a9fcda3ef46cfa2b9b6c2fbfc0d68371db34adf39b47284 |
memory/4088-13-0x0000000000810000-0x0000000000AF4000-memory.dmp
memory/4088-12-0x00007FFFABE23000-0x00007FFFABE25000-memory.dmp
memory/4088-14-0x00000000013C0000-0x00000000013CE000-memory.dmp