remcos | e8cac456b3e4a072d16142f0dd9f9b0500013cfefe7359e4293d4cff61f9eaf7

General

Target

Factura Serfinanza106109596363318359608727771.exe
Size

1.8MB
MD5

e13f7ded8bfc14808ca964c5dec10b9f
SHA1

c5606c21b84a858ed7b54da2a7f17802fffcddb3
SHA256

e8cac456b3e4a072d16142f0dd9f9b0500013cfefe7359e4293d4cff61f9eaf7
SHA512

91d0cfb0e051c3ab5f8b97a5d8afb83476d825d7e87760a93220fd44cfd42c93b6b394341924521202988595e1a787586c087b614d8ab7df42563ccc2b490e7d

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

1236 PxxoServicesTrialNet1.exe
3276 PxxoServicesTrialNet1.exe

pid	process
1236	PxxoServicesTrialNet1.exe
3276	PxxoServicesTrialNet1.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Factura Serfinanza106109596363318359608727771.exePxxoServicesTrialNet1.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Factura Serfinanza106109596363318359608727771.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	Factura Serfinanza106109596363318359608727771.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PxxoServicesTrialNet1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	PxxoServicesTrialNet1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 24 IoCs

Processes:

Factura Serfinanza106109596363318359608727771.exePxxoServicesTrialNet1.exe

pid	process
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Factura Serfinanza106109596363318359608727771.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 1828 set thread context of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1236 set thread context of 3276	1236	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
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

3276 timeout.exe
3400 timeout.exe

pid	process
3276	timeout.exe
3400	timeout.exe

Modifies registry class 1 IoCs

Processes:

Factura Serfinanza106109596363318359608727771.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings	Factura Serfinanza106109596363318359608727771.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

Factura Serfinanza106109596363318359608727771.exePxxoServicesTrialNet1.exe

pid	process
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1828	Factura Serfinanza106109596363318359608727771.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe
1236	PxxoServicesTrialNet1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Factura Serfinanza106109596363318359608727771.exePxxoServicesTrialNet1.exe

description	pid	process
Token: SeDebugPrivilege	1828	Factura Serfinanza106109596363318359608727771.exe
Token: SeDebugPrivilege	1236	PxxoServicesTrialNet1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

3276 PxxoServicesTrialNet1.exe

pid	process
3276	PxxoServicesTrialNet1.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

Factura Serfinanza106109596363318359608727771.execmd.exeFactura Serfinanza106109596363318359608727771.exeWScript.execmd.exePxxoServicesTrialNet1.execmd.exe

description	pid	process	target process
PID 1828 wrote to memory of 2620	1828	Factura Serfinanza106109596363318359608727771.exe	cmd.exe
PID 1828 wrote to memory of 2620	1828	Factura Serfinanza106109596363318359608727771.exe	cmd.exe
PID 1828 wrote to memory of 2620	1828	Factura Serfinanza106109596363318359608727771.exe	cmd.exe
PID 2620 wrote to memory of 3276	2620	cmd.exe	timeout.exe
PID 2620 wrote to memory of 3276	2620	cmd.exe	timeout.exe
PID 2620 wrote to memory of 3276	2620	cmd.exe	timeout.exe
PID 1828 wrote to memory of 3700	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3700	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3700	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 1828 wrote to memory of 3880	1828	Factura Serfinanza106109596363318359608727771.exe	Factura Serfinanza106109596363318359608727771.exe
PID 3880 wrote to memory of 3772	3880	Factura Serfinanza106109596363318359608727771.exe	WScript.exe
PID 3880 wrote to memory of 3772	3880	Factura Serfinanza106109596363318359608727771.exe	WScript.exe
PID 3880 wrote to memory of 3772	3880	Factura Serfinanza106109596363318359608727771.exe	WScript.exe
PID 3772 wrote to memory of 2144	3772	WScript.exe	cmd.exe
PID 3772 wrote to memory of 2144	3772	WScript.exe	cmd.exe
PID 3772 wrote to memory of 2144	3772	WScript.exe	cmd.exe
PID 2144 wrote to memory of 1236	2144	cmd.exe	PxxoServicesTrialNet1.exe
PID 2144 wrote to memory of 1236	2144	cmd.exe	PxxoServicesTrialNet1.exe
PID 2144 wrote to memory of 1236	2144	cmd.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 2728	1236	PxxoServicesTrialNet1.exe	cmd.exe
PID 1236 wrote to memory of 2728	1236	PxxoServicesTrialNet1.exe	cmd.exe
PID 1236 wrote to memory of 2728	1236	PxxoServicesTrialNet1.exe	cmd.exe
PID 2728 wrote to memory of 3400	2728	cmd.exe	timeout.exe
PID 2728 wrote to memory of 3400	2728	cmd.exe	timeout.exe
PID 2728 wrote to memory of 3400	2728	cmd.exe	timeout.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1236 wrote to memory of 3276	1236	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza106109596363318359608727771.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza106109596363318359608727771.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1828

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:2620

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:3276

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza106109596363318359608727771.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza106109596363318359608727771.exe"
2⤵
PID:3700

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza106109596363318359608727771.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza106109596363318359608727771.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3880

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:3772

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:2144

C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
5⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1236

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
- Suspicious use of WriteProcessMemory
PID:2728

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:3400

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:3276

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
e13f7ded8bfc14808ca964c5dec10b9f

SHA1
c5606c21b84a858ed7b54da2a7f17802fffcddb3

SHA256
e8cac456b3e4a072d16142f0dd9f9b0500013cfefe7359e4293d4cff61f9eaf7

SHA512
91d0cfb0e051c3ab5f8b97a5d8afb83476d825d7e87760a93220fd44cfd42c93b6b394341924521202988595e1a787586c087b614d8ab7df42563ccc2b490e7d

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
e13f7ded8bfc14808ca964c5dec10b9f

SHA1
c5606c21b84a858ed7b54da2a7f17802fffcddb3

SHA256
e8cac456b3e4a072d16142f0dd9f9b0500013cfefe7359e4293d4cff61f9eaf7

SHA512
91d0cfb0e051c3ab5f8b97a5d8afb83476d825d7e87760a93220fd44cfd42c93b6b394341924521202988595e1a787586c087b614d8ab7df42563ccc2b490e7d

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
e13f7ded8bfc14808ca964c5dec10b9f

SHA1
c5606c21b84a858ed7b54da2a7f17802fffcddb3

SHA256
e8cac456b3e4a072d16142f0dd9f9b0500013cfefe7359e4293d4cff61f9eaf7

SHA512
91d0cfb0e051c3ab5f8b97a5d8afb83476d825d7e87760a93220fd44cfd42c93b6b394341924521202988595e1a787586c087b614d8ab7df42563ccc2b490e7d

Download Submit
memory/1236-137-0x0000000005F30000-0x0000000005F31000-memory.dmp

Filesize
4KB

Download
memory/1236-128-0x0000000000000000-mapping.dmp

Download
memory/1828-116-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/1828-117-0x0000000002760000-0x000000000279E000-memory.dmp

Filesize
248KB

Download
memory/1828-119-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/1828-114-0x0000000000400000-0x0000000000401000-memory.dmp

Filesize
4KB

Download
memory/1828-121-0x0000000007050000-0x0000000007051000-memory.dmp

Filesize
4KB

Download
memory/2144-127-0x0000000000000000-mapping.dmp

Download
memory/2620-118-0x0000000000000000-mapping.dmp

Download
memory/2728-135-0x0000000000000000-mapping.dmp

Download
memory/3276-120-0x0000000000000000-mapping.dmp

Download
memory/3276-140-0x0000000000413FA4-mapping.dmp

Download
memory/3276-142-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3400-136-0x0000000000000000-mapping.dmp

Download
memory/3772-125-0x0000000000000000-mapping.dmp

Download
memory/3880-124-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3880-123-0x0000000000413FA4-mapping.dmp

Download
memory/3880-122-0x0000000000400000-0x0000000000422000-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