remcos | 6993ffac6e8c4020e152ce6ba165cf3efb429908340d2d9c02812dffc019cf0a

General

Target

EXTRACTOSERFINANZA718365418101786154346661555.exe
Size

1.8MB
MD5

4b87651766b45ec78c2c9ea9a6951e5c
SHA1

6fd91fe21ba350f55bd6f00d389986084d4e3852
SHA256

6993ffac6e8c4020e152ce6ba165cf3efb429908340d2d9c02812dffc019cf0a
SHA512

f4e642008a9af3a91b55727636c0155dde65db1d811c776fd2ad7548ae18a52c5642ae6cfab04b9903bd642a10090ea27fe516bd94ddd9fed8af7b5b09c0fb46

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

1344 PxxoServicesTrialNet1.exe
408 PxxoServicesTrialNet1.exe

pid	process
1344	PxxoServicesTrialNet1.exe
408	PxxoServicesTrialNet1.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PxxoServicesTrialNet1.exeEXTRACTOSERFINANZA718365418101786154346661555.exe

description	ioc	process
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
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\	EXTRACTOSERFINANZA718365418101786154346661555.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\""	EXTRACTOSERFINANZA718365418101786154346661555.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PxxoServicesTrialNet1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 24 IoCs

Processes:

EXTRACTOSERFINANZA718365418101786154346661555.exePxxoServicesTrialNet1.exe

pid	process
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

EXTRACTOSERFINANZA718365418101786154346661555.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 3972 set thread context of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 1344 set thread context of 408	1344	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 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1192 3972 WerFault.exe EXTRACTOSERFINANZA718365418101786154346661555.exe
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

3516 timeout.exe
3120 timeout.exe

pid	pid_target	process	target process
1192	3972	WerFault.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe

pid	process
3516	timeout.exe
3120	timeout.exe

Modifies registry class 1 IoCs

Processes:

EXTRACTOSERFINANZA718365418101786154346661555.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings	EXTRACTOSERFINANZA718365418101786154346661555.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

EXTRACTOSERFINANZA718365418101786154346661555.exeWerFault.exePxxoServicesTrialNet1.exe

pid	process
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1192	WerFault.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe
1344	PxxoServicesTrialNet1.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

408 PxxoServicesTrialNet1.exe

pid	process
408	PxxoServicesTrialNet1.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

EXTRACTOSERFINANZA718365418101786154346661555.exeWerFault.exePxxoServicesTrialNet1.exe

description	pid	process
Token: SeDebugPrivilege	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe
Token: SeRestorePrivilege	1192	WerFault.exe
Token: SeBackupPrivilege	1192	WerFault.exe
Token: SeDebugPrivilege	1192	WerFault.exe
Token: SeDebugPrivilege	1344	PxxoServicesTrialNet1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

408 PxxoServicesTrialNet1.exe

pid	process
408	PxxoServicesTrialNet1.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

EXTRACTOSERFINANZA718365418101786154346661555.execmd.exeEXTRACTOSERFINANZA718365418101786154346661555.exeWScript.execmd.exePxxoServicesTrialNet1.execmd.exe

description	pid	process	target process
PID 3972 wrote to memory of 2668	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	cmd.exe
PID 3972 wrote to memory of 2668	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	cmd.exe
PID 3972 wrote to memory of 2668	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	cmd.exe
PID 2668 wrote to memory of 3516	2668	cmd.exe	timeout.exe
PID 2668 wrote to memory of 3516	2668	cmd.exe	timeout.exe
PID 2668 wrote to memory of 3516	2668	cmd.exe	timeout.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 3972 wrote to memory of 488	3972	EXTRACTOSERFINANZA718365418101786154346661555.exe	EXTRACTOSERFINANZA718365418101786154346661555.exe
PID 488 wrote to memory of 1112	488	EXTRACTOSERFINANZA718365418101786154346661555.exe	WScript.exe
PID 488 wrote to memory of 1112	488	EXTRACTOSERFINANZA718365418101786154346661555.exe	WScript.exe
PID 488 wrote to memory of 1112	488	EXTRACTOSERFINANZA718365418101786154346661555.exe	WScript.exe
PID 1112 wrote to memory of 572	1112	WScript.exe	cmd.exe
PID 1112 wrote to memory of 572	1112	WScript.exe	cmd.exe
PID 1112 wrote to memory of 572	1112	WScript.exe	cmd.exe
PID 572 wrote to memory of 1344	572	cmd.exe	PxxoServicesTrialNet1.exe
PID 572 wrote to memory of 1344	572	cmd.exe	PxxoServicesTrialNet1.exe
PID 572 wrote to memory of 1344	572	cmd.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 3700	1344	PxxoServicesTrialNet1.exe	cmd.exe
PID 1344 wrote to memory of 3700	1344	PxxoServicesTrialNet1.exe	cmd.exe
PID 1344 wrote to memory of 3700	1344	PxxoServicesTrialNet1.exe	cmd.exe
PID 3700 wrote to memory of 3120	3700	cmd.exe	timeout.exe
PID 3700 wrote to memory of 3120	3700	cmd.exe	timeout.exe
PID 3700 wrote to memory of 3120	3700	cmd.exe	timeout.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 1344 wrote to memory of 408	1344	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe

C:\Users\Admin\AppData\Local\Temp\EXTRACTOSERFINANZA718365418101786154346661555.exe
"C:\Users\Admin\AppData\Local\Temp\EXTRACTOSERFINANZA718365418101786154346661555.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3972

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:2668

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:3516

C:\Users\Admin\AppData\Local\Temp\EXTRACTOSERFINANZA718365418101786154346661555.exe
"C:\Users\Admin\AppData\Local\Temp\EXTRACTOSERFINANZA718365418101786154346661555.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:488

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:1112

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:572

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:1344

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
- Suspicious use of WriteProcessMemory
PID:3700

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:3120

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:408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3972 -s 1384
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1192

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
4b87651766b45ec78c2c9ea9a6951e5c

SHA1
6fd91fe21ba350f55bd6f00d389986084d4e3852

SHA256
6993ffac6e8c4020e152ce6ba165cf3efb429908340d2d9c02812dffc019cf0a

SHA512
f4e642008a9af3a91b55727636c0155dde65db1d811c776fd2ad7548ae18a52c5642ae6cfab04b9903bd642a10090ea27fe516bd94ddd9fed8af7b5b09c0fb46

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
4b87651766b45ec78c2c9ea9a6951e5c

SHA1
6fd91fe21ba350f55bd6f00d389986084d4e3852

SHA256
6993ffac6e8c4020e152ce6ba165cf3efb429908340d2d9c02812dffc019cf0a

SHA512
f4e642008a9af3a91b55727636c0155dde65db1d811c776fd2ad7548ae18a52c5642ae6cfab04b9903bd642a10090ea27fe516bd94ddd9fed8af7b5b09c0fb46

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
4b87651766b45ec78c2c9ea9a6951e5c

SHA1
6fd91fe21ba350f55bd6f00d389986084d4e3852

SHA256
6993ffac6e8c4020e152ce6ba165cf3efb429908340d2d9c02812dffc019cf0a

SHA512
f4e642008a9af3a91b55727636c0155dde65db1d811c776fd2ad7548ae18a52c5642ae6cfab04b9903bd642a10090ea27fe516bd94ddd9fed8af7b5b09c0fb46

Download Submit
memory/408-142-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/408-140-0x0000000000413FA4-mapping.dmp

Download
memory/488-126-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/488-122-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/488-123-0x0000000000413FA4-mapping.dmp

Download
memory/572-127-0x0000000000000000-mapping.dmp

Download
memory/1112-124-0x0000000000000000-mapping.dmp

Download
memory/1344-128-0x0000000000000000-mapping.dmp

Download
memory/1344-137-0x0000000005360000-0x0000000005361000-memory.dmp

Filesize
4KB

Download
memory/2668-118-0x0000000000000000-mapping.dmp

Download
memory/3120-136-0x0000000000000000-mapping.dmp

Download
memory/3516-119-0x0000000000000000-mapping.dmp

Download
memory/3700-135-0x0000000000000000-mapping.dmp

Download
memory/3972-114-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/3972-116-0x0000000005370000-0x0000000005371000-memory.dmp

Filesize
4KB

Download
memory/3972-121-0x0000000006570000-0x0000000006571000-memory.dmp

Filesize
4KB

Download
memory/3972-120-0x0000000005640000-0x0000000005641000-memory.dmp

Filesize
4KB

Download
memory/3972-117-0x0000000002C30000-0x0000000002C6F000-memory.dmp

Filesize
252KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads