remcos | 962166f0ef5b1d6dd3e73c03575b5de20220feabe4f13a63d6441e66d1164563

General

Target

SERFINANZAEXTRACTO728296481601298694807375214.exe
Size

130KB
MD5

109b6f8dcadd3cd022666186b003e3db
SHA1

ef1ffdd909287a5395aa875bcd5a25510c61f3fd
SHA256

962166f0ef5b1d6dd3e73c03575b5de20220feabe4f13a63d6441e66d1164563
SHA512

45cf6a6bad6f5e56a4c07eacceb1aa7c781fb0bf67284450b74e4f14a74a653e9c7e8da1c4a12e2cfee0d74d4ce3dd5b9523837dab68ccd954c99adf08a6a715

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

812 PxxoServicesTrialNet1.exe
1748 PxxoServicesTrialNet1.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1128 cmd.exe

pid	process
812	PxxoServicesTrialNet1.exe
1748	PxxoServicesTrialNet1.exe

pid	process
1128	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SERFINANZAEXTRACTO728296481601298694807375214.exePxxoServicesTrialNet1.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\	SERFINANZAEXTRACTO728296481601298694807375214.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	SERFINANZAEXTRACTO728296481601298694807375214.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PxxoServicesTrialNet1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\MservicesOrg2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PxxoServicesTrialNet1.exe\""	PxxoServicesTrialNet1.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

SERFINANZAEXTRACTO728296481601298694807375214.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 1840 set thread context of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 812 set thread context of 1748	812	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 use of AdjustPrivilegeToken 1 IoCs

Processes:

SERFINANZAEXTRACTO728296481601298694807375214.exe

description pid process

Token: SeDebugPrivilege 1840 SERFINANZAEXTRACTO728296481601298694807375214.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PxxoServicesTrialNet1.exe

pid process

1748 PxxoServicesTrialNet1.exe

description	pid	process
Token: SeDebugPrivilege	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe

pid	process
1748	PxxoServicesTrialNet1.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

SERFINANZAEXTRACTO728296481601298694807375214.exeSERFINANZAEXTRACTO728296481601298694807375214.exeWScript.execmd.exePxxoServicesTrialNet1.exe

description	pid	process	target process
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1840 wrote to memory of 1568	1840	SERFINANZAEXTRACTO728296481601298694807375214.exe	SERFINANZAEXTRACTO728296481601298694807375214.exe
PID 1568 wrote to memory of 840	1568	SERFINANZAEXTRACTO728296481601298694807375214.exe	WScript.exe
PID 1568 wrote to memory of 840	1568	SERFINANZAEXTRACTO728296481601298694807375214.exe	WScript.exe
PID 1568 wrote to memory of 840	1568	SERFINANZAEXTRACTO728296481601298694807375214.exe	WScript.exe
PID 1568 wrote to memory of 840	1568	SERFINANZAEXTRACTO728296481601298694807375214.exe	WScript.exe
PID 840 wrote to memory of 1128	840	WScript.exe	cmd.exe
PID 840 wrote to memory of 1128	840	WScript.exe	cmd.exe
PID 840 wrote to memory of 1128	840	WScript.exe	cmd.exe
PID 840 wrote to memory of 1128	840	WScript.exe	cmd.exe
PID 1128 wrote to memory of 812	1128	cmd.exe	PxxoServicesTrialNet1.exe
PID 1128 wrote to memory of 812	1128	cmd.exe	PxxoServicesTrialNet1.exe
PID 1128 wrote to memory of 812	1128	cmd.exe	PxxoServicesTrialNet1.exe
PID 1128 wrote to memory of 812	1128	cmd.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe
PID 812 wrote to memory of 1748	812	PxxoServicesTrialNet1.exe	PxxoServicesTrialNet1.exe

C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO728296481601298694807375214.exe
"C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO728296481601298694807375214.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1840

C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO728296481601298694807375214.exe
"C:\Users\Admin\AppData\Local\Temp\SERFINANZAEXTRACTO728296481601298694807375214.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1568

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:840

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:1128

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:812

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:1748

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
109b6f8dcadd3cd022666186b003e3db

SHA1
ef1ffdd909287a5395aa875bcd5a25510c61f3fd

SHA256
962166f0ef5b1d6dd3e73c03575b5de20220feabe4f13a63d6441e66d1164563

SHA512
45cf6a6bad6f5e56a4c07eacceb1aa7c781fb0bf67284450b74e4f14a74a653e9c7e8da1c4a12e2cfee0d74d4ce3dd5b9523837dab68ccd954c99adf08a6a715

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
109b6f8dcadd3cd022666186b003e3db

SHA1
ef1ffdd909287a5395aa875bcd5a25510c61f3fd

SHA256
962166f0ef5b1d6dd3e73c03575b5de20220feabe4f13a63d6441e66d1164563

SHA512
45cf6a6bad6f5e56a4c07eacceb1aa7c781fb0bf67284450b74e4f14a74a653e9c7e8da1c4a12e2cfee0d74d4ce3dd5b9523837dab68ccd954c99adf08a6a715

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
109b6f8dcadd3cd022666186b003e3db

SHA1
ef1ffdd909287a5395aa875bcd5a25510c61f3fd

SHA256
962166f0ef5b1d6dd3e73c03575b5de20220feabe4f13a63d6441e66d1164563

SHA512
45cf6a6bad6f5e56a4c07eacceb1aa7c781fb0bf67284450b74e4f14a74a653e9c7e8da1c4a12e2cfee0d74d4ce3dd5b9523837dab68ccd954c99adf08a6a715

Download Submit
C:\Users\Admin\CmCowAfgjoWxTpGOK
MD5
ceba3e1f81a309e45abe1238cee630e5

SHA1
fd0ee8fe76e402a2ef955e9d82aea63848c80485

SHA256
af50040677d5677f74920de80f8151523b5b9a740a965908514cd32cd86b7ab1

SHA512
cbcdaaa032448fb087a48acbc787af4ff52f6550da0471b547e89584c6a8a56b7c7d381c3013c298de2cc4dec904dda2950d732bf878d15a84e5867bbbcd19ae

Download Submit
\Users\Admin\AppData\Roaming\System32\PxxoServicesTrialNet1.exe
MD5
109b6f8dcadd3cd022666186b003e3db

SHA1
ef1ffdd909287a5395aa875bcd5a25510c61f3fd

SHA256
962166f0ef5b1d6dd3e73c03575b5de20220feabe4f13a63d6441e66d1164563

SHA512
45cf6a6bad6f5e56a4c07eacceb1aa7c781fb0bf67284450b74e4f14a74a653e9c7e8da1c4a12e2cfee0d74d4ce3dd5b9523837dab68ccd954c99adf08a6a715

Download Submit
memory/812-74-0x0000000000000000-mapping.dmp

Download
memory/812-81-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/812-76-0x0000000000E80000-0x0000000000E81000-memory.dmp

Filesize
4KB

Download
memory/840-67-0x0000000000000000-mapping.dmp

Download
memory/1128-71-0x0000000000000000-mapping.dmp

Download
memory/1568-64-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1568-70-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1568-65-0x0000000000413FA4-mapping.dmp

Download
memory/1748-83-0x0000000000413FA4-mapping.dmp

Download
memory/1748-86-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1840-59-0x00000000011E0000-0x00000000011E1000-memory.dmp

Filesize
4KB

Download
memory/1840-63-0x00000000002A0000-0x00000000002DF000-memory.dmp

Filesize
252KB

Download
memory/1840-62-0x0000000001140000-0x0000000001141000-memory.dmp

Filesize
4KB

Download
memory/1840-61-0x00000000757C1000-0x00000000757C3000-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