remcos | f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785

General

Target

7034c12131cc2e28fcf9235850a36b08e9983dce.exe
Size

7KB
MD5

1c72fb093ace75fffb093c6541ff4940
SHA1

7034c12131cc2e28fcf9235850a36b08e9983dce
SHA256

f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785
SHA512

4d713c85e2b5a818e3f5db4c7b59a820bb309c911825670b540597c9faa9d931f5648d054e19a01a48f7c97bae6dfe67b02148fb3ad58ddafdd11bb06f8a59ed
SSDEEP

96:lTlsnKYgr+QLZCMqm18WQ2juY+wq+Df/8tEkajtR/zNt:lpQELZCMqmXjuZ+z8zaj7p

Score

10^/10

remcos 28282 persistence rat

Malware Config

Extracted

Family

remcos

Botnet

28282

C2

194.180.49.17:28282

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
gqhwjekrltlu-TOU33Q
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 2 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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	7034c12131cc2e28fcf9235850a36b08e9983dce.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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Eesibjdz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gngrey\\Eesibjdz.exe\""	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3000 set thread context of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings	7034c12131cc2e28fcf9235850a36b08e9983dce.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1888	powershell.exe
1888	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
Token: SeDebugPrivilege	1888	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 1888	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	79
PID 3000 wrote to memory of 1888	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	79
PID 3000 wrote to memory of 1888	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	79
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 3000 wrote to memory of 796	3000	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	87
PID 796 wrote to memory of 3224	796	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	88
PID 796 wrote to memory of 3224	796	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	88
PID 796 wrote to memory of 3224	796	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	88

C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
"C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.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:3000
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1888
- C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
  C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:796
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\earuzrpskglxhedkwlyekdxf.vbs"
    3⤵
    PID:3224

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\earuzrpskglxhedkwlyekdxf.vbs

Filesize
632B

MD5
2a1ea020599f14208dc31d83daaf0810

SHA1
496ebadfda0d489b31dfcd278bfac8409d5dc0e0

SHA256
aaa5f90bdf2b7143c035481d4e27b79b3015ed91c9e9a557f7d49acebf174228

SHA512
730be93a0494db7e1dae1a8901b1e16daa89ec140f129fd45d240763f7e8ed6530bafee5983bdbb46bc4bc8db7dc4811e5a6861d12dc9127afaf691ad5f53883

Download Submit
memory/796-151-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/796-149-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/796-148-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/796-147-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/796-146-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/796-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1888-137-0x0000000005320000-0x0000000005386000-memory.dmp

Filesize
408KB

Download
memory/1888-141-0x0000000005FF0000-0x000000000600A000-memory.dmp

Filesize
104KB

Download
memory/1888-140-0x0000000007350000-0x00000000079CA000-memory.dmp

Filesize
6.5MB

Download
memory/1888-139-0x0000000005AD0000-0x0000000005AEE000-memory.dmp

Filesize
120KB

Download
memory/1888-138-0x0000000005390000-0x00000000053F6000-memory.dmp

Filesize
408KB

Download
memory/1888-136-0x0000000004CF0000-0x0000000005318000-memory.dmp

Filesize
6.2MB

Download
memory/1888-135-0x0000000000D30000-0x0000000000D66000-memory.dmp

Filesize
216KB

Download
memory/3000-142-0x00000000060A0000-0x0000000006132000-memory.dmp

Filesize
584KB

Download
memory/3000-143-0x0000000007C40000-0x00000000081E4000-memory.dmp

Filesize
5.6MB

Download
memory/3000-132-0x0000000000F10000-0x0000000000F18000-memory.dmp

Filesize
32KB

Download
memory/3000-133-0x0000000006EC0000-0x0000000006EE2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing