remcos | 708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d

General

Target

Factura Serfinanza015523916818153570120365653.exe
Size

182KB
MD5

baf64c11c421783c173c6e318ff09a55
SHA1

887903c97a12c34c6aeb893c0ea0dc09650bb909
SHA256

708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d
SHA512

c6902b3021b0d0c14a7634aee8dca33fb14cd9afa2cb47f64792fad44e9e1457d228a822228cdaa21f422aaf8a11f79546eaba49986994a99d7e24751ff8dce2

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 2 IoCs

Processes:

PxxoServicesTrialNet1.exePxxoServicesTrialNet1.exe

pid process

1520 PxxoServicesTrialNet1.exe
292 PxxoServicesTrialNet1.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1312 cmd.exe

pid	process
1520	PxxoServicesTrialNet1.exe
292	PxxoServicesTrialNet1.exe

pid	process
1312	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Factura Serfinanza015523916818153570120365653.exePxxoServicesTrialNet1.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Factura Serfinanza015523916818153570120365653.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\""	Factura Serfinanza015523916818153570120365653.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:

Factura Serfinanza015523916818153570120365653.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 1040 set thread context of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1520 set thread context of 292	1520	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:

Factura Serfinanza015523916818153570120365653.exe

pid process

1040 Factura Serfinanza015523916818153570120365653.exe
1040 Factura Serfinanza015523916818153570120365653.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Factura Serfinanza015523916818153570120365653.exe

description pid process

Token: SeDebugPrivilege 1040 Factura Serfinanza015523916818153570120365653.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

292 PxxoServicesTrialNet1.exe

pid	process
1040	Factura Serfinanza015523916818153570120365653.exe
1040	Factura Serfinanza015523916818153570120365653.exe

description	pid	process
Token: SeDebugPrivilege	1040	Factura Serfinanza015523916818153570120365653.exe

pid	process
292	PxxoServicesTrialNet1.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

Factura Serfinanza015523916818153570120365653.exeFactura Serfinanza015523916818153570120365653.exeWScript.execmd.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 1040 wrote to memory of 1576	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1576	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1576	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1576	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1040 wrote to memory of 1684	1040	Factura Serfinanza015523916818153570120365653.exe	Factura Serfinanza015523916818153570120365653.exe
PID 1684 wrote to memory of 396	1684	Factura Serfinanza015523916818153570120365653.exe	WScript.exe
PID 1684 wrote to memory of 396	1684	Factura Serfinanza015523916818153570120365653.exe	WScript.exe
PID 1684 wrote to memory of 396	1684	Factura Serfinanza015523916818153570120365653.exe	WScript.exe
PID 1684 wrote to memory of 396	1684	Factura Serfinanza015523916818153570120365653.exe	WScript.exe
PID 396 wrote to memory of 1312	396	WScript.exe	cmd.exe
PID 396 wrote to memory of 1312	396	WScript.exe	cmd.exe
PID 396 wrote to memory of 1312	396	WScript.exe	cmd.exe
PID 396 wrote to memory of 1312	396	WScript.exe	cmd.exe
PID 1312 wrote to memory of 1520	1312	cmd.exe	PxxoServicesTrialNet1.exe
PID 1312 wrote to memory of 1520	1312	cmd.exe	PxxoServicesTrialNet1.exe
PID 1312 wrote to memory of 1520	1312	cmd.exe	PxxoServicesTrialNet1.exe
PID 1312 wrote to memory of 1520	1312	cmd.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1520 wrote to memory of 292	1520	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza015523916818153570120365653.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza015523916818153570120365653.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza015523916818153570120365653.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza015523916818153570120365653.exe"
2⤵
PID:1576

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza015523916818153570120365653.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza015523916818153570120365653.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:396

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:1312

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 use of WriteProcessMemory
PID:1520

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:292

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\5I36d5eB1331z29b6Adxz821c1a
MD5
83dd79b1cc880472657258ac78cd7658

SHA1
94349ad6649e281f261c3f33eb7ff5167ff3011b

SHA256
cc85340fe2458d9a12477827ccc7fc05cf2f24007ea932b03d51ca9162eb1790

SHA512
906d6abaa5c227fc69b42a2c997d8bd91486b1689ccc8db8262411d2d46b9cccfde144ffb0659713c36bf2922937b444dc4b71ce6841b7f7fb36b03dcbe4df4f

Download Submit
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
baf64c11c421783c173c6e318ff09a55

SHA1
887903c97a12c34c6aeb893c0ea0dc09650bb909

SHA256
708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d

SHA512
c6902b3021b0d0c14a7634aee8dca33fb14cd9afa2cb47f64792fad44e9e1457d228a822228cdaa21f422aaf8a11f79546eaba49986994a99d7e24751ff8dce2

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
baf64c11c421783c173c6e318ff09a55

SHA1
887903c97a12c34c6aeb893c0ea0dc09650bb909

SHA256
708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d

SHA512
c6902b3021b0d0c14a7634aee8dca33fb14cd9afa2cb47f64792fad44e9e1457d228a822228cdaa21f422aaf8a11f79546eaba49986994a99d7e24751ff8dce2

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
baf64c11c421783c173c6e318ff09a55

SHA1
887903c97a12c34c6aeb893c0ea0dc09650bb909

SHA256
708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d

SHA512
c6902b3021b0d0c14a7634aee8dca33fb14cd9afa2cb47f64792fad44e9e1457d228a822228cdaa21f422aaf8a11f79546eaba49986994a99d7e24751ff8dce2

Download Submit
\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
baf64c11c421783c173c6e318ff09a55

SHA1
887903c97a12c34c6aeb893c0ea0dc09650bb909

SHA256
708bd4b84c02b04a8e1b7daa0f1966c09780788ef56062438fffe0543330255d

SHA512
c6902b3021b0d0c14a7634aee8dca33fb14cd9afa2cb47f64792fad44e9e1457d228a822228cdaa21f422aaf8a11f79546eaba49986994a99d7e24751ff8dce2

Download Submit
memory/292-84-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/292-81-0x0000000000413FA4-mapping.dmp

Download
memory/396-66-0x0000000000000000-mapping.dmp

Download
memory/1040-62-0x0000000000530000-0x0000000000557000-memory.dmp

Filesize
156KB

Download
memory/1040-61-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

Filesize
4KB

Download
memory/1040-59-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1312-70-0x0000000000000000-mapping.dmp

Download
memory/1520-75-0x0000000001190000-0x0000000001191000-memory.dmp

Filesize
4KB

Download
memory/1520-79-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download
memory/1520-73-0x0000000000000000-mapping.dmp

Download
memory/1684-63-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1684-64-0x0000000000413FA4-mapping.dmp

Download
memory/1684-69-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1684-65-0x0000000074F31000-0x0000000074F33000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads