remcos | b9f87900e53b232ee34c913e7b66cc0fa420dd3af54b12ff25fcbf1c64d0d934

General

Target

SERFINANZAEXTRACTO944199837077212444587235899.exe
Size

131KB
MD5

dc118f13f61651753aec111329580d88
SHA1

b4680650bbdb95b4bb5148d299fc23df7b7b710a
SHA256

b9f87900e53b232ee34c913e7b66cc0fa420dd3af54b12ff25fcbf1c64d0d934
SHA512

17c1bede09edda68bcdf9eeb5e1386a5491a77ae35c92f4cca966ce6a8eb18c41430dee991c65a1d6deea28a5a2bba9f454c9c0f162aac83e0c1759619ecde0a

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

databasepropersonombrecomercialideasearchwords.services:3521

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 3 IoCs

Processes:

PxxoServicesTrialNet1.exePxxoServicesTrialNet1.exePxxoServicesTrialNet1.exe

pid process

940 PxxoServicesTrialNet1.exe
1936 PxxoServicesTrialNet1.exe
280 PxxoServicesTrialNet1.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1052 cmd.exe

pid	process
940	PxxoServicesTrialNet1.exe
1936	PxxoServicesTrialNet1.exe
280	PxxoServicesTrialNet1.exe

pid	process
1052	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SERFINANZAEXTRACTO944199837077212444587235899.exePxxoServicesTrialNet1.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\	SERFINANZAEXTRACTO944199837077212444587235899.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	SERFINANZAEXTRACTO944199837077212444587235899.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PxxoServicesTrialNet1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	PxxoServicesTrialNet1.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

SERFINANZAEXTRACTO944199837077212444587235899.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 1096 set thread context of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 940 set thread context of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

940 PxxoServicesTrialNet1.exe
940 PxxoServicesTrialNet1.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SERFINANZAEXTRACTO944199837077212444587235899.exePxxoServicesTrialNet1.exe

description pid process

Token: SeDebugPrivilege 1096 SERFINANZAEXTRACTO944199837077212444587235899.exe
Token: SeDebugPrivilege 940 PxxoServicesTrialNet1.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

280 PxxoServicesTrialNet1.exe

pid	process
940	PxxoServicesTrialNet1.exe
940	PxxoServicesTrialNet1.exe

description	pid	process
Token: SeDebugPrivilege	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe
Token: SeDebugPrivilege	940	PxxoServicesTrialNet1.exe

pid	process
280	PxxoServicesTrialNet1.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

SERFINANZAEXTRACTO944199837077212444587235899.exeSERFINANZAEXTRACTO944199837077212444587235899.exeWScript.execmd.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1096 wrote to memory of 1632	1096	SERFINANZAEXTRACTO944199837077212444587235899.exe	SERFINANZAEXTRACTO944199837077212444587235899.exe
PID 1632 wrote to memory of 748	1632	SERFINANZAEXTRACTO944199837077212444587235899.exe	WScript.exe
PID 1632 wrote to memory of 748	1632	SERFINANZAEXTRACTO944199837077212444587235899.exe	WScript.exe
PID 1632 wrote to memory of 748	1632	SERFINANZAEXTRACTO944199837077212444587235899.exe	WScript.exe
PID 1632 wrote to memory of 748	1632	SERFINANZAEXTRACTO944199837077212444587235899.exe	WScript.exe
PID 748 wrote to memory of 1052	748	WScript.exe	cmd.exe
PID 748 wrote to memory of 1052	748	WScript.exe	cmd.exe
PID 748 wrote to memory of 1052	748	WScript.exe	cmd.exe
PID 748 wrote to memory of 1052	748	WScript.exe	cmd.exe
PID 1052 wrote to memory of 940	1052	cmd.exe	PxxoServicesTrialNet1.exe
PID 1052 wrote to memory of 940	1052	cmd.exe	PxxoServicesTrialNet1.exe
PID 1052 wrote to memory of 940	1052	cmd.exe	PxxoServicesTrialNet1.exe
PID 1052 wrote to memory of 940	1052	cmd.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 1936	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 1936	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 1936	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 1936	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 940 wrote to memory of 280	940	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe

C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO944199837077212444587235899.exe
"C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO944199837077212444587235899.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096

C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO944199837077212444587235899.exe
"C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO944199837077212444587235899.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe"
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1052

C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:940

C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
"C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe"
6⤵
- Executes dropped EXE
PID:1936

C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
"C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:280

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.vbs
MD5
a39af763b1c09ead3c98a6a615f377fe

SHA1
9bd3d39c89e47fe7072270ecc80b810103235c03

SHA256
a3930d7535eb768523ee52bbe69f13f857a0ae0f982d7bfc354d802f21010f8f

SHA512
3ed8e33ac95fd2536286b4afb2ed2a082bb5f98843478262b32263a14a5dbe0425de7b8d9662a5e482b207ebf8484ace8009ecd1881a6f6f8b0ccf3b0fdfe5da

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
dc118f13f61651753aec111329580d88

SHA1
b4680650bbdb95b4bb5148d299fc23df7b7b710a

SHA256
b9f87900e53b232ee34c913e7b66cc0fa420dd3af54b12ff25fcbf1c64d0d934

SHA512
17c1bede09edda68bcdf9eeb5e1386a5491a77ae35c92f4cca966ce6a8eb18c41430dee991c65a1d6deea28a5a2bba9f454c9c0f162aac83e0c1759619ecde0a

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
dc118f13f61651753aec111329580d88

SHA1
b4680650bbdb95b4bb5148d299fc23df7b7b710a

SHA256
b9f87900e53b232ee34c913e7b66cc0fa420dd3af54b12ff25fcbf1c64d0d934

SHA512
17c1bede09edda68bcdf9eeb5e1386a5491a77ae35c92f4cca966ce6a8eb18c41430dee991c65a1d6deea28a5a2bba9f454c9c0f162aac83e0c1759619ecde0a

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
dc118f13f61651753aec111329580d88

SHA1
b4680650bbdb95b4bb5148d299fc23df7b7b710a

SHA256
b9f87900e53b232ee34c913e7b66cc0fa420dd3af54b12ff25fcbf1c64d0d934

SHA512
17c1bede09edda68bcdf9eeb5e1386a5491a77ae35c92f4cca966ce6a8eb18c41430dee991c65a1d6deea28a5a2bba9f454c9c0f162aac83e0c1759619ecde0a

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
dc118f13f61651753aec111329580d88

SHA1
b4680650bbdb95b4bb5148d299fc23df7b7b710a

SHA256
b9f87900e53b232ee34c913e7b66cc0fa420dd3af54b12ff25fcbf1c64d0d934

SHA512
17c1bede09edda68bcdf9eeb5e1386a5491a77ae35c92f4cca966ce6a8eb18c41430dee991c65a1d6deea28a5a2bba9f454c9c0f162aac83e0c1759619ecde0a

Download Submit
C:\Users\Admin\CfepWBQNhDaYOLZlGyNwoUlgDpQN
MD5
9c1797b2ccf40a4fbf987bbdd9d2c26d

SHA1
df6c711b7211e1bb6baacc5864e40618d06b6035

SHA256
5ee133a70b1383938439b0dc21b8ab98cd12749b4d39ef5864ba46c81613ba16

SHA512
816870e186de2060b1dd34a1b3e6c3a0bf87af4d4d941477406ffa45ec8a614f253ba5de47a22568fac7f57ed8cab029071eaf2474bb9bf761bbe7de444093b2

Download Submit
\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
dc118f13f61651753aec111329580d88

SHA1
b4680650bbdb95b4bb5148d299fc23df7b7b710a

SHA256
b9f87900e53b232ee34c913e7b66cc0fa420dd3af54b12ff25fcbf1c64d0d934

SHA512
17c1bede09edda68bcdf9eeb5e1386a5491a77ae35c92f4cca966ce6a8eb18c41430dee991c65a1d6deea28a5a2bba9f454c9c0f162aac83e0c1759619ecde0a

Download Submit
memory/280-87-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/280-84-0x0000000000413FA4-mapping.dmp

Download
memory/748-67-0x0000000000000000-mapping.dmp

Download
memory/940-76-0x0000000000E90000-0x0000000000E91000-memory.dmp

Filesize
4KB

Download
memory/940-74-0x0000000000000000-mapping.dmp

Download
memory/940-81-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/1052-71-0x0000000000000000-mapping.dmp

Download
memory/1096-59-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

Filesize
4KB

Download
memory/1096-63-0x0000000000470000-0x000000000049C000-memory.dmp

Filesize
176KB

Download
memory/1096-62-0x0000000004A30000-0x0000000004A31000-memory.dmp

Filesize
4KB

Download
memory/1096-61-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1632-64-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1632-65-0x0000000000413FA4-mapping.dmp

Download
memory/1632-70-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads