remcos | cde072db2b4374550769689ef072dba357436e36d2e75c1398d24896e0deaeb1

General

Target

Factura Serfinanza049997609832517851274630184.exe
Size

1.8MB
MD5

78ae2bb47e68026583b48b2f93c7c00d
SHA1

93c92695574540ac6f927818ea2814e614b44c9b
SHA256

cde072db2b4374550769689ef072dba357436e36d2e75c1398d24896e0deaeb1
SHA512

d1aef3116b1949ea566f4d75cf12b97d29aba6f52a9714688414be8d7e064a0d4e4f099f1527293051a7c13ffa4117273ede055a2d9ce40decc9aa88b75577dc

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

3908 PxxoServicesTrialNet1.exe
1868 PxxoServicesTrialNet1.exe

pid	process
3908	PxxoServicesTrialNet1.exe
1868	PxxoServicesTrialNet1.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Factura Serfinanza049997609832517851274630184.exePxxoServicesTrialNet1.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Factura Serfinanza049997609832517851274630184.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	Factura Serfinanza049997609832517851274630184.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PxxoServicesTrialNet1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	PxxoServicesTrialNet1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 25 IoCs

Processes:

Factura Serfinanza049997609832517851274630184.exePxxoServicesTrialNet1.exe

pid	process
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Factura Serfinanza049997609832517851274630184.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 800 set thread context of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 3908 set thread context of 1868	3908	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
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2892 800 WerFault.exe Factura Serfinanza049997609832517851274630184.exe
3820 3908 WerFault.exe PxxoServicesTrialNet1.exe
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

3672 timeout.exe
3576 timeout.exe

pid	pid_target	process	target process
2892	800	WerFault.exe	Factura Serfinanza049997609832517851274630184.exe
3820	3908	WerFault.exe	PxxoServicesTrialNet1.exe

pid	process
3672	timeout.exe
3576	timeout.exe

Modifies registry class 1 IoCs

Processes:

Factura Serfinanza049997609832517851274630184.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	Factura Serfinanza049997609832517851274630184.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

Processes:

Factura Serfinanza049997609832517851274630184.exeWerFault.exePxxoServicesTrialNet1.exeWerFault.exe

pid	process
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
800	Factura Serfinanza049997609832517851274630184.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3908	PxxoServicesTrialNet1.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

1868 PxxoServicesTrialNet1.exe

pid	process
1868	PxxoServicesTrialNet1.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Factura Serfinanza049997609832517851274630184.exeWerFault.exePxxoServicesTrialNet1.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	800	Factura Serfinanza049997609832517851274630184.exe
Token: SeRestorePrivilege	2892	WerFault.exe
Token: SeBackupPrivilege	2892	WerFault.exe
Token: SeDebugPrivilege	2892	WerFault.exe
Token: SeDebugPrivilege	3908	PxxoServicesTrialNet1.exe
Token: SeDebugPrivilege	3820	WerFault.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

1868 PxxoServicesTrialNet1.exe

pid	process
1868	PxxoServicesTrialNet1.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

Factura Serfinanza049997609832517851274630184.execmd.exeFactura Serfinanza049997609832517851274630184.exeWScript.execmd.exePxxoServicesTrialNet1.execmd.exe

description	pid	process	target process
PID 800 wrote to memory of 3032	800	Factura Serfinanza049997609832517851274630184.exe	cmd.exe
PID 800 wrote to memory of 3032	800	Factura Serfinanza049997609832517851274630184.exe	cmd.exe
PID 800 wrote to memory of 3032	800	Factura Serfinanza049997609832517851274630184.exe	cmd.exe
PID 3032 wrote to memory of 3672	3032	cmd.exe	timeout.exe
PID 3032 wrote to memory of 3672	3032	cmd.exe	timeout.exe
PID 3032 wrote to memory of 3672	3032	cmd.exe	timeout.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 800 wrote to memory of 3424	800	Factura Serfinanza049997609832517851274630184.exe	Factura Serfinanza049997609832517851274630184.exe
PID 3424 wrote to memory of 3852	3424	Factura Serfinanza049997609832517851274630184.exe	WScript.exe
PID 3424 wrote to memory of 3852	3424	Factura Serfinanza049997609832517851274630184.exe	WScript.exe
PID 3424 wrote to memory of 3852	3424	Factura Serfinanza049997609832517851274630184.exe	WScript.exe
PID 3852 wrote to memory of 3824	3852	WScript.exe	cmd.exe
PID 3852 wrote to memory of 3824	3852	WScript.exe	cmd.exe
PID 3852 wrote to memory of 3824	3852	WScript.exe	cmd.exe
PID 3824 wrote to memory of 3908	3824	cmd.exe	PxxoServicesTrialNet1.exe
PID 3824 wrote to memory of 3908	3824	cmd.exe	PxxoServicesTrialNet1.exe
PID 3824 wrote to memory of 3908	3824	cmd.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 936	3908	PxxoServicesTrialNet1.exe	cmd.exe
PID 3908 wrote to memory of 936	3908	PxxoServicesTrialNet1.exe	cmd.exe
PID 3908 wrote to memory of 936	3908	PxxoServicesTrialNet1.exe	cmd.exe
PID 936 wrote to memory of 3576	936	cmd.exe	timeout.exe
PID 936 wrote to memory of 3576	936	cmd.exe	timeout.exe
PID 936 wrote to memory of 3576	936	cmd.exe	timeout.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 3908 wrote to memory of 1868	3908	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza049997609832517851274630184.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza049997609832517851274630184.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:800

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:3032

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:3672

C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza049997609832517851274630184.exe
"C:\Users\Admin\AppData\Local\Temp\Factura Serfinanza049997609832517851274630184.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3424

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:3852

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:3824

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:3908

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
- Suspicious use of WriteProcessMemory
PID:936

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:3576

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 behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3908 -s 1456
6⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 800 -s 1460
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892

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
78ae2bb47e68026583b48b2f93c7c00d

SHA1
93c92695574540ac6f927818ea2814e614b44c9b

SHA256
cde072db2b4374550769689ef072dba357436e36d2e75c1398d24896e0deaeb1

SHA512
d1aef3116b1949ea566f4d75cf12b97d29aba6f52a9714688414be8d7e064a0d4e4f099f1527293051a7c13ffa4117273ede055a2d9ce40decc9aa88b75577dc

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
78ae2bb47e68026583b48b2f93c7c00d

SHA1
93c92695574540ac6f927818ea2814e614b44c9b

SHA256
cde072db2b4374550769689ef072dba357436e36d2e75c1398d24896e0deaeb1

SHA512
d1aef3116b1949ea566f4d75cf12b97d29aba6f52a9714688414be8d7e064a0d4e4f099f1527293051a7c13ffa4117273ede055a2d9ce40decc9aa88b75577dc

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
78ae2bb47e68026583b48b2f93c7c00d

SHA1
93c92695574540ac6f927818ea2814e614b44c9b

SHA256
cde072db2b4374550769689ef072dba357436e36d2e75c1398d24896e0deaeb1

SHA512
d1aef3116b1949ea566f4d75cf12b97d29aba6f52a9714688414be8d7e064a0d4e4f099f1527293051a7c13ffa4117273ede055a2d9ce40decc9aa88b75577dc

Download Submit
memory/800-121-0x0000000007450000-0x0000000007451000-memory.dmp

Filesize
4KB

Download
memory/800-118-0x00000000065D0000-0x00000000065D1000-memory.dmp

Filesize
4KB

Download
memory/800-114-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/800-117-0x0000000002B60000-0x0000000002B9E000-memory.dmp

Filesize
248KB

Download
memory/800-116-0x0000000005260000-0x0000000005261000-memory.dmp

Filesize
4KB

Download
memory/936-135-0x0000000000000000-mapping.dmp

Download
memory/1868-142-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1868-140-0x0000000000413FA4-mapping.dmp

Download
memory/3032-119-0x0000000000000000-mapping.dmp

Download
memory/3424-125-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3424-123-0x0000000000413FA4-mapping.dmp

Download
memory/3424-122-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3576-137-0x0000000000000000-mapping.dmp

Download
memory/3672-120-0x0000000000000000-mapping.dmp

Download
memory/3824-127-0x0000000000000000-mapping.dmp

Download
memory/3852-124-0x0000000000000000-mapping.dmp

Download
memory/3908-128-0x0000000000000000-mapping.dmp

Download
memory/3908-136-0x00000000053F0000-0x00000000053F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads