remcos | 3f6667a5066146062d2d6f8411a39c58cce7a2e4d134048214b8e8ff95a6ee9b

General

Target

20180622.exe
Size

236KB
MD5

766b9a9fa159679fdf6890835040d1b6
SHA1

e2557ef24c7f6b90f12a3999935de2ec1623cef6
SHA256

3213df437d54f9cf84c34004a8be9e351dbd9e1d476652f7ec6367033b75b624
SHA512

ec278453e55001193f1a716e973564043f33039d342f6d8d93f1727edd380d2189fd207e06ed29e6ea69c15f3757705db8316c480ba7d026dd6bc86a91209d8d
SSDEEP

3072:SATwwivXqxK29jPpcw+eGGs0S/p9KjLfOwlapM5Q3hfyziIv:S16v9jBj+eb1daaaRyzp

Score

10^/10

remcos discovery rat

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2708	Cleated.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20180622.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Cleated.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2700	schtasks.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
816	20180622.exe
816	20180622.exe
2708	Cleated.exe
2708	Cleated.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
816	20180622.exe
816	20180622.exe
2708	Cleated.exe
2708	Cleated.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
816	20180622.exe
2708	Cleated.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
2708	Cleated.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 816 wrote to memory of 2700	816	20180622.exe	31
PID 816 wrote to memory of 2700	816	20180622.exe	31
PID 816 wrote to memory of 2700	816	20180622.exe	31
PID 816 wrote to memory of 2700	816	20180622.exe	31
PID 816 wrote to memory of 2792	816	20180622.exe	33
PID 816 wrote to memory of 2792	816	20180622.exe	33
PID 816 wrote to memory of 2792	816	20180622.exe	33
PID 816 wrote to memory of 2792	816	20180622.exe	33
PID 2844 wrote to memory of 2708	2844	taskeng.exe	36
PID 2844 wrote to memory of 2708	2844	taskeng.exe	36
PID 2844 wrote to memory of 2708	2844	taskeng.exe	36
PID 2844 wrote to memory of 2708	2844	taskeng.exe	36

C:\Users\Admin\AppData\Local\Temp\20180622.exe
"C:\Users\Admin\AppData\Local\Temp\20180622.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:816
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /TN "tekstlinie" /TR "C:\Users\Admin\AppData\Roaming\Cleated.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2700
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /run /tn "tekstlinie"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792

C:\Windows\system32\taskeng.exe
taskeng.exe {FF21F6C3-A6BE-463F-9B3A-02612A4D6459} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Users\Admin\AppData\Roaming\Cleated.exe
  C:\Users\Admin\AppData\Roaming\Cleated.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of UnmapMainImage
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Cleated.exe

Filesize
236KB

MD5
d30191b8a128a44ea7acae6df8a7b797

SHA1
73d9013233a9071abba4b64dc678e7b1b7236619

SHA256
f371cac2ed06b31df599083adca2a767724babd9f4649ec5ed1cbfa549fff84c

SHA512
257f5f2812cd8a6d66ac0314fcc6bca352743bb902f4862274fbf092d1a21bb8ae861bb9f5dd6cac881fc236437a44997964a3bef09fd3e18bc60ae861fb5a15

Download Submit
memory/816-2-0x0000000003620000-0x0000000003660000-memory.dmp

Filesize
256KB

Download
memory/816-3-0x0000000003620000-0x0000000003660000-memory.dmp

Filesize
256KB

Download
memory/816-4-0x0000000003620000-0x0000000003660000-memory.dmp

Filesize
256KB

Download
memory/816-5-0x0000000077580000-0x0000000077656000-memory.dmp

Filesize
856KB

Download
memory/2708-11-0x00000000026D0000-0x0000000002710000-memory.dmp

Filesize
256KB

Download
memory/2708-12-0x00000000026D0000-0x0000000002710000-memory.dmp

Filesize
256KB

Download
memory/2708-13-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2708-14-0x00000000026D0000-0x0000000002710000-memory.dmp

Filesize
256KB

Download
memory/2708-15-0x00000000026D0000-0x0000000002710000-memory.dmp

Filesize
256KB

Download
memory/2708-16-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2708-17-0x0000000072940000-0x0000000072A60000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads