remcos | 79bb818fc30e74241f91b22bef1226e587bbc3ab5851c75951e3f0578dc9b443

General

Target

attached transfer request.exe
Size

1.3MB
MD5

50b35c36ff8b820bd749844a3f7e3c66
SHA1

9f6371165965c83b97db610bca7ee0e6da6955a6
SHA256

79bb818fc30e74241f91b22bef1226e587bbc3ab5851c75951e3f0578dc9b443
SHA512

8a10199387e3547bf88eccce1ee44b80faf67e06572dd75d72fd357d48095bf3a623157233957aa668bf29068243e5aac337c7411268ef2b37d0b66b363fe250
SSDEEP

24576:uz7VEpXGzQqX8tWakkQ0OALxr89Toy6snv:s7mpXGda3Q0hLx89Twa

Score

10^/10

remcos jayjay rat

Malware Config

Extracted

Family

remcos

Botnet

JAYJAY

C2

37.0.14.199:1985

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-9CJDSG
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 1488	1752	attached transfer request.exe	31

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1100	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1752	attached transfer request.exe
1752	attached transfer request.exe
1752	attached transfer request.exe
1752	attached transfer request.exe
1752	attached transfer request.exe
1752	attached transfer request.exe
1932	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	attached transfer request.exe
Token: SeDebugPrivilege	1932	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1488	attached transfer request.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 1932	1752	attached transfer request.exe	27
PID 1752 wrote to memory of 1932	1752	attached transfer request.exe	27
PID 1752 wrote to memory of 1932	1752	attached transfer request.exe	27
PID 1752 wrote to memory of 1932	1752	attached transfer request.exe	27
PID 1752 wrote to memory of 1100	1752	attached transfer request.exe	29
PID 1752 wrote to memory of 1100	1752	attached transfer request.exe	29
PID 1752 wrote to memory of 1100	1752	attached transfer request.exe	29
PID 1752 wrote to memory of 1100	1752	attached transfer request.exe	29
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31
PID 1752 wrote to memory of 1488	1752	attached transfer request.exe	31

C:\Users\Admin\AppData\Local\Temp\attached transfer request.exe
"C:\Users\Admin\AppData\Local\Temp\attached transfer request.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hOiZpewniJ.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hOiZpewniJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF567.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1100
- C:\Users\Admin\AppData\Local\Temp\attached transfer request.exe
  "C:\Users\Admin\AppData\Local\Temp\attached transfer request.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1488

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF567.tmp

Filesize
1KB

MD5
ba691d7a74d2cfe0ca6b5d383309c640

SHA1
63e336502d11d37cae49493e9bc4fcea7f897f47

SHA256
2c31c9afb996dc4a6e8f48ebbe79bfa63a8e36d2f719113dc6c82cf2bb411704

SHA512
bb4b9d7edf5e3784bcb5705c85b87342e8886b54fe87f1844f26e2143ad93c2eaa794ac58f660a887a6cc774f183417f9e62c85e56ef3c6a90478601433bb5ad

Download Submit
memory/1488-69-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-84-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-82-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-80-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-76-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-74-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-64-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-65-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-71-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-72-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-70-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1488-67-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1752-57-0x0000000000290000-0x000000000029C000-memory.dmp

Filesize
48KB

Download
memory/1752-63-0x0000000005E80000-0x0000000005EFC000-memory.dmp

Filesize
496KB

Download
memory/1752-55-0x0000000075111000-0x0000000075113000-memory.dmp

Filesize
8KB

Download
memory/1752-54-0x0000000000E70000-0x0000000000FB6000-memory.dmp

Filesize
1.3MB

Download
memory/1752-56-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/1752-58-0x00000000054B0000-0x0000000005580000-memory.dmp

Filesize
832KB

Download
memory/1932-81-0x000000006E2D0000-0x000000006E87B000-memory.dmp

Filesize
5.7MB

Download
memory/1932-83-0x000000006E2D0000-0x000000006E87B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads