remcos | 1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587

General

Target

1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe
Size

4.9MB
MD5

f7868816c93b82e6bb881dc01a28fc69
SHA1

a553cde91ffdfd4f1ff8d4be493acecf950844d1
SHA256

1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587
SHA512

1098c8f3ba48d014e4e5adaca563f64edb7b21a2137282f1d0a280cb22b7bc3e91cf2b91c49fac34db694230854eebd5227a7d20917a8a38105a7f21583e6018
SSDEEP

24576:EE8V6c8yJquIvBqbwTqrE4KfpBrUrUgUJ/3Ua/UUMKRRY/JdudZ7cqGeuhSJl6ZQ:

Score

10^/10

remcos graced persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Graced

C2

185.156.174.115:32763

127.0.0.1:32763

10.13.93.136:32763

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-LRK9GW
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Oqeyttykb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Mraznsvb\\Oqeyttykb.exe\""	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4020 set thread context of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2568	powershell.exe
2568	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe
Token: SeDebugPrivilege	2568	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 2568	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	81
PID 4020 wrote to memory of 2568	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	81
PID 4020 wrote to memory of 2568	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	81
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90
PID 4020 wrote to memory of 2736	4020	1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe	90

C:\Users\Admin\AppData\Local\Temp\1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe
"C:\Users\Admin\AppData\Local\Temp\1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4020
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAzAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2568
- C:\Users\Admin\AppData\Local\Temp\1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe
  C:\Users\Admin\AppData\Local\Temp\1bbea84b63cf309885a3ba7566b738886006cb2153fd5bc17f6d382f03539587.exe
  2⤵
  PID:2736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2568-140-0x0000000007280000-0x00000000078FA000-memory.dmp

Filesize
6.5MB

Download
memory/2568-141-0x0000000005F40000-0x0000000005F5A000-memory.dmp

Filesize
104KB

Download
memory/2568-135-0x00000000044F0000-0x0000000004526000-memory.dmp

Filesize
216KB

Download
memory/2568-136-0x0000000004B60000-0x0000000005188000-memory.dmp

Filesize
6.2MB

Download
memory/2568-137-0x0000000005280000-0x00000000052E6000-memory.dmp

Filesize
408KB

Download
memory/2568-139-0x0000000005A60000-0x0000000005A7E000-memory.dmp

Filesize
120KB

Download
memory/2568-138-0x00000000052F0000-0x0000000005356000-memory.dmp

Filesize
408KB

Download
memory/2736-143-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2736-144-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2736-145-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2736-146-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2736-147-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/4020-132-0x0000000000430000-0x000000000091E000-memory.dmp

Filesize
4.9MB

Download
memory/4020-133-0x0000000006590000-0x00000000065B2000-memory.dmp

Filesize
136KB

Download

Analysis

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