remcos | f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2023, 07:10

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General

Target
7034c12131cc2e28fcf9235850a36b08e9983dce.exe
Size 7KB
Sample230127-hzev3aae6y
SHA256 f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785
MD5 1c72fb093ace75fffb093c6541ff4940
SHA1 7034c12131cc2e28fcf9235850a36b08e9983dce
SHA512 4d713c85e2b5a818e3f5db4c7b59a820bb309c911825670b540597c9faa9d931f5648d054e19a01a48f7c97bae6dfe67b02148fb3ad58ddafdd11bb06f8a59ed
SSDEEP 96:lTlsnKYgr+QLZCMqm18WQ2juY+wq+Df/8tEkajtR/zNt:lpQELZCMqmXjuZ+z8zaj7p
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos 28282 persistence rat

Malware Config

Extracted

Family

remcos

Botnet

28282

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 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-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000\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 5052 set thread context of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89

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
1684	powershell.exe
1684	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe
Token: SeDebugPrivilege	1684	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 1684	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	81
PID 5052 wrote to memory of 1684	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	81
PID 5052 wrote to memory of 1684	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	81
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89
PID 5052 wrote to memory of 1548	5052	7034c12131cc2e28fcf9235850a36b08e9983dce.exe	89

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:5052
- 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:1684
- C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
  C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
  2⤵
  PID:1548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1548-149-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1548-148-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1548-147-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1548-146-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1548-145-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1684-136-0x0000000005700000-0x0000000005D28000-memory.dmp

Download

memory/1684-139-0x0000000006590000-0x00000000065AE000-memory.dmp

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memory/1684-140-0x0000000007DD0000-0x000000000844A000-memory.dmp

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memory/1684-141-0x0000000006A70000-0x0000000006A8A000-memory.dmp

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memory/1684-138-0x0000000005F70000-0x0000000005FD6000-memory.dmp

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memory/1684-137-0x0000000005E90000-0x0000000005EF6000-memory.dmp

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memory/1684-135-0x0000000004FC0000-0x0000000004FF6000-memory.dmp

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memory/5052-142-0x0000000005A50000-0x0000000005AE2000-memory.dmp

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memory/5052-143-0x0000000007680000-0x0000000007C24000-memory.dmp

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memory/5052-132-0x0000000000780000-0x0000000000788000-memory.dmp

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memory/5052-133-0x0000000006730000-0x0000000006752000-memory.dmp

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