remcos | b2c6522e33aaab89652cba0f9266435563eed285db3dff387e1ee12a6d28e898

General

Target

a1990886962a1099568261dba39d5093.exe
Size

1.1MB
MD5

a1990886962a1099568261dba39d5093
SHA1

5bd0bd3a6371f536d75fc384a7f8433311bedb78
SHA256

b2c6522e33aaab89652cba0f9266435563eed285db3dff387e1ee12a6d28e898
SHA512

f90ed573ef68a616f67e7fdb6bf6e3f2256fddf9c0acc22eb9ecff6d3bd4f414acb910ef4f2fbc493d8ff5afeadf88795ae571eb9815e3807f3601a440196c2b

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

hjduiebcvzcalpmjdbcnwqadhsiybcnzxswedgap.ydns.eu:2024

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 3 IoCs

Processes:

win.exewin.exewin.exe

pid process

3312 win.exe
1500 win.exe
1560 win.exe

pid	process
3312	win.exe
1500	win.exe
1560	win.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a1990886962a1099568261dba39d5093.exewin.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	a1990886962a1099568261dba39d5093.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	win.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	win.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a1990886962a1099568261dba39d5093.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

a1990886962a1099568261dba39d5093.exewin.exe

description	pid	process	target process
PID 3920 set thread context of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3312 set thread context of 1560	3312	win.exe	win.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

a1990886962a1099568261dba39d5093.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	a1990886962a1099568261dba39d5093.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

a1990886962a1099568261dba39d5093.exewin.exe

pid	process
3920	a1990886962a1099568261dba39d5093.exe
3920	a1990886962a1099568261dba39d5093.exe
3920	a1990886962a1099568261dba39d5093.exe
3920	a1990886962a1099568261dba39d5093.exe
3920	a1990886962a1099568261dba39d5093.exe
3920	a1990886962a1099568261dba39d5093.exe
3312	win.exe
3312	win.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

a1990886962a1099568261dba39d5093.exewin.exe

description pid process

Token: SeDebugPrivilege 3920 a1990886962a1099568261dba39d5093.exe
Token: SeDebugPrivilege 3312 win.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

win.exe

pid process

1560 win.exe

description	pid	process
Token: SeDebugPrivilege	3920	a1990886962a1099568261dba39d5093.exe
Token: SeDebugPrivilege	3312	win.exe

pid	process
1560	win.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

a1990886962a1099568261dba39d5093.exea1990886962a1099568261dba39d5093.exeWScript.execmd.exewin.exe

description	pid	process	target process
PID 3920 wrote to memory of 2812	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2812	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2812	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 4056	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 4056	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 4056	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2352	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2352	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2352	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 3920 wrote to memory of 2288	3920	a1990886962a1099568261dba39d5093.exe	a1990886962a1099568261dba39d5093.exe
PID 2288 wrote to memory of 3976	2288	a1990886962a1099568261dba39d5093.exe	WScript.exe
PID 2288 wrote to memory of 3976	2288	a1990886962a1099568261dba39d5093.exe	WScript.exe
PID 2288 wrote to memory of 3976	2288	a1990886962a1099568261dba39d5093.exe	WScript.exe
PID 3976 wrote to memory of 2116	3976	WScript.exe	cmd.exe
PID 3976 wrote to memory of 2116	3976	WScript.exe	cmd.exe
PID 3976 wrote to memory of 2116	3976	WScript.exe	cmd.exe
PID 2116 wrote to memory of 3312	2116	cmd.exe	win.exe
PID 2116 wrote to memory of 3312	2116	cmd.exe	win.exe
PID 2116 wrote to memory of 3312	2116	cmd.exe	win.exe
PID 3312 wrote to memory of 1500	3312	win.exe	win.exe
PID 3312 wrote to memory of 1500	3312	win.exe	win.exe
PID 3312 wrote to memory of 1500	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe
PID 3312 wrote to memory of 1560	3312	win.exe	win.exe

C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe
"C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3920

C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe
"C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe"
2⤵
PID:2812

C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe
"C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe"
2⤵
PID:4056

C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe
"C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe"
2⤵
PID:2352

C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe
"C:\Users\Admin\AppData\Local\Temp\a1990886962a1099568261dba39d5093.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2288

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:3976

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\win.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:2116

C:\Users\Admin\AppData\Roaming\win.exe
C:\Users\Admin\AppData\Roaming\win.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3312

C:\Users\Admin\AppData\Roaming\win.exe
"C:\Users\Admin\AppData\Roaming\win.exe"
6⤵
- Executes dropped EXE
PID:1500

C:\Users\Admin\AppData\Roaming\win.exe
"C:\Users\Admin\AppData\Roaming\win.exe"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1560

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
4a74e626596d6e66b4bbc59ee6848f2d

SHA1
047849ac8735ecc0943428c7cd5e00b52eee06ed

SHA256
98bd6dc219a7a3e04d3d67bbec9f0b4d4640831a3a6be0a0078b050041088b0e

SHA512
1cd943482d0f1ce2ffaf6ee4a82895e4d57c52051bb14bbda0548cf072b4c5cbe719d2cdb549b5ae7c0241dd9c68dd9d1674acd26aed684b8145500079cc5403

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
a1990886962a1099568261dba39d5093

SHA1
5bd0bd3a6371f536d75fc384a7f8433311bedb78

SHA256
b2c6522e33aaab89652cba0f9266435563eed285db3dff387e1ee12a6d28e898

SHA512
f90ed573ef68a616f67e7fdb6bf6e3f2256fddf9c0acc22eb9ecff6d3bd4f414acb910ef4f2fbc493d8ff5afeadf88795ae571eb9815e3807f3601a440196c2b

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
a1990886962a1099568261dba39d5093

SHA1
5bd0bd3a6371f536d75fc384a7f8433311bedb78

SHA256
b2c6522e33aaab89652cba0f9266435563eed285db3dff387e1ee12a6d28e898

SHA512
f90ed573ef68a616f67e7fdb6bf6e3f2256fddf9c0acc22eb9ecff6d3bd4f414acb910ef4f2fbc493d8ff5afeadf88795ae571eb9815e3807f3601a440196c2b

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
a1990886962a1099568261dba39d5093

SHA1
5bd0bd3a6371f536d75fc384a7f8433311bedb78

SHA256
b2c6522e33aaab89652cba0f9266435563eed285db3dff387e1ee12a6d28e898

SHA512
f90ed573ef68a616f67e7fdb6bf6e3f2256fddf9c0acc22eb9ecff6d3bd4f414acb910ef4f2fbc493d8ff5afeadf88795ae571eb9815e3807f3601a440196c2b

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
a1990886962a1099568261dba39d5093

SHA1
5bd0bd3a6371f536d75fc384a7f8433311bedb78

SHA256
b2c6522e33aaab89652cba0f9266435563eed285db3dff387e1ee12a6d28e898

SHA512
f90ed573ef68a616f67e7fdb6bf6e3f2256fddf9c0acc22eb9ecff6d3bd4f414acb910ef4f2fbc493d8ff5afeadf88795ae571eb9815e3807f3601a440196c2b

Download Submit
memory/1560-137-0x0000000000413FA4-mapping.dmp

Download
memory/1560-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2116-125-0x0000000000000000-mapping.dmp

Download
memory/2288-121-0x0000000000413FA4-mapping.dmp

Download
memory/2288-122-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2288-120-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3312-134-0x0000000005590000-0x0000000005591000-memory.dmp

Filesize
4KB

Download
memory/3312-126-0x0000000000000000-mapping.dmp

Download
memory/3920-119-0x0000000005490000-0x0000000005491000-memory.dmp

Filesize
4KB

Download
memory/3920-114-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/3920-118-0x0000000005AF0000-0x0000000005AF1000-memory.dmp

Filesize
4KB

Download
memory/3920-117-0x0000000002C40000-0x0000000002C6A000-memory.dmp

Filesize
168KB

Download
memory/3920-116-0x00000000051A0000-0x00000000051A1000-memory.dmp

Filesize
4KB

Download
memory/3976-123-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads