remcos | 282f91fa5f97cf075829ce5a82abfbd642939afd7d38046348f51d7e5643b97d

Analysis

max time kernel
148s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2023, 05:57

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General

Target
4602a9cd04e5ea382b41b93132d9aefb.exe
Size 965KB
Sample230128-gnk29sec54
SHA256 282f91fa5f97cf075829ce5a82abfbd642939afd7d38046348f51d7e5643b97d
MD5 4602a9cd04e5ea382b41b93132d9aefb
SHA1 deadedea6002401c71dec20f9117d3d813eb3c3b
SHA512 02a3c8b7eb29ad42e24c4e3de884f22997352f085aa979c6881074c169a73ab9890299dd414e0c550002f387b05403232aee3e28ae7b5ee0cceb4f4c1f9ee840
SSDEEP 12288:zSkOvbnR8ey/ZhiWXD4zFqIGyi5Uv1ehKxHN14V8VuDkuldWEN6NtKfr78/5qimv:HvivXGvwehiHRIDkjEN2c78Q5h3y4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos awele-host persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Awele-Host

gdyhjjdhbvxgsfe.gotdns.ch:2718

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
qos.exe
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
true
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
Rmc-VC3F2C
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Jm
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
3548	qos.exe
1628	qos.exe

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	4602a9cd04e5ea382b41b93132d9aefb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	WScript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Jm = "\"C:\\Users\\Admin\\AppData\\Roaming\\qos.exe\""	qos.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\	4602a9cd04e5ea382b41b93132d9aefb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Jm = "\"C:\\Users\\Admin\\AppData\\Roaming\\qos.exe\""	4602a9cd04e5ea382b41b93132d9aefb.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	4602a9cd04e5ea382b41b93132d9aefb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Jm = "\"C:\\Users\\Admin\\AppData\\Roaming\\qos.exe\""	4602a9cd04e5ea382b41b93132d9aefb.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\	qos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Jm = "\"C:\\Users\\Admin\\AppData\\Roaming\\qos.exe\""	qos.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	qos.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1052 set thread context of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 3548 set thread context of 1628	3548	qos.exe	95

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	4602a9cd04e5ea382b41b93132d9aefb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1052	4602a9cd04e5ea382b41b93132d9aefb.exe
1052	4602a9cd04e5ea382b41b93132d9aefb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1052	4602a9cd04e5ea382b41b93132d9aefb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1628	qos.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 2456	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	89
PID 1052 wrote to memory of 2456	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	89
PID 1052 wrote to memory of 2456	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	89
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 1052 wrote to memory of 2376	1052	4602a9cd04e5ea382b41b93132d9aefb.exe	90
PID 2376 wrote to memory of 60	2376	4602a9cd04e5ea382b41b93132d9aefb.exe	91
PID 2376 wrote to memory of 60	2376	4602a9cd04e5ea382b41b93132d9aefb.exe	91
PID 2376 wrote to memory of 60	2376	4602a9cd04e5ea382b41b93132d9aefb.exe	91
PID 60 wrote to memory of 3036	60	WScript.exe	92
PID 60 wrote to memory of 3036	60	WScript.exe	92
PID 60 wrote to memory of 3036	60	WScript.exe	92
PID 3036 wrote to memory of 3548	3036	cmd.exe	94
PID 3036 wrote to memory of 3548	3036	cmd.exe	94
PID 3036 wrote to memory of 3548	3036	cmd.exe	94
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95
PID 3548 wrote to memory of 1628	3548	qos.exe	95

C:\Users\Admin\AppData\Local\Temp\4602a9cd04e5ea382b41b93132d9aefb.exe
"C:\Users\Admin\AppData\Local\Temp\4602a9cd04e5ea382b41b93132d9aefb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Users\Admin\AppData\Local\Temp\4602a9cd04e5ea382b41b93132d9aefb.exe
  "C:\Users\Admin\AppData\Local\Temp\4602a9cd04e5ea382b41b93132d9aefb.exe"
  2⤵
  PID:2456
- C:\Users\Admin\AppData\Local\Temp\4602a9cd04e5ea382b41b93132d9aefb.exe
  "C:\Users\Admin\AppData\Local\Temp\4602a9cd04e5ea382b41b93132d9aefb.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\tveumrugputiafujzfjezkqxa.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:60
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\qos.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3036
    - - C:\Users\Admin\AppData\Roaming\qos.exe
        
        C:\Users\Admin\AppData\Roaming\qos.exe
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:3548
      - C:\Users\Admin\AppData\Roaming\qos.exe
        
        "C:\Users\Admin\AppData\Roaming\qos.exe"
        6⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of SetWindowsHookEx
        
        PID:1628

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

tveumrugputiafujzfjezkqxa.vbs

Path C:\Users\Admin\AppData\Local\Temp\tveumrugputiafujzfjezkqxa.vbs
Size 398B
SHA256 e10a418a00a6de27cf1c4b5e46f7543c290afc801835efa99b633ee3d75f7571
MD5 8e2a1197a839a92a232ec1bc06a9cf69
SHA1 a501c184e874983afccbde838f3260dfb7d62527
SHA512 26a35fa937a7d63f120b40331ed6370832d690d49b5cc0aa74350f9a7eaefa9f6433df6647ef5974a5de3ac055841166cf5543eb4002d831ecac05c3c896eaaf
MD5 SHA1 SHA512

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qos.exe

Path C:\Users\Admin\AppData\Roaming\qos.exe
Size 965KB
SHA256 282f91fa5f97cf075829ce5a82abfbd642939afd7d38046348f51d7e5643b97d
MD5 4602a9cd04e5ea382b41b93132d9aefb
SHA1 deadedea6002401c71dec20f9117d3d813eb3c3b
SHA512 02a3c8b7eb29ad42e24c4e3de884f22997352f085aa979c6881074c169a73ab9890299dd414e0c550002f387b05403232aee3e28ae7b5ee0cceb4f4c1f9ee840
SSDEEP 12288:zSkOvbnR8ey/ZhiWXD4zFqIGyi5Uv1ehKxHN14V8VuDkuldWEN6NtKfr78/5qimv:HvivXGvwehiHRIDkjEN2c78Q5h3y4
MD5 SHA1 SHA512 SSDEEP

Submit Download

qos.exe

Path C:\Users\Admin\AppData\Roaming\qos.exe
Size 965KB
SHA256 282f91fa5f97cf075829ce5a82abfbd642939afd7d38046348f51d7e5643b97d
MD5 4602a9cd04e5ea382b41b93132d9aefb
SHA1 deadedea6002401c71dec20f9117d3d813eb3c3b
SHA512 02a3c8b7eb29ad42e24c4e3de884f22997352f085aa979c6881074c169a73ab9890299dd414e0c550002f387b05403232aee3e28ae7b5ee0cceb4f4c1f9ee840
SSDEEP 12288:zSkOvbnR8ey/ZhiWXD4zFqIGyi5Uv1ehKxHN14V8VuDkuldWEN6NtKfr78/5qimv:HvivXGvwehiHRIDkjEN2c78Q5h3y4
MD5 SHA1 SHA512 SSDEEP

Submit Download

qos.exe

Path C:\Users\Admin\AppData\Roaming\qos.exe
Size 965KB
SHA256 282f91fa5f97cf075829ce5a82abfbd642939afd7d38046348f51d7e5643b97d
MD5 4602a9cd04e5ea382b41b93132d9aefb
SHA1 deadedea6002401c71dec20f9117d3d813eb3c3b
SHA512 02a3c8b7eb29ad42e24c4e3de884f22997352f085aa979c6881074c169a73ab9890299dd414e0c550002f387b05403232aee3e28ae7b5ee0cceb4f4c1f9ee840
SSDEEP 12288:zSkOvbnR8ey/ZhiWXD4zFqIGyi5Uv1ehKxHN14V8VuDkuldWEN6NtKfr78/5qimv:HvivXGvwehiHRIDkjEN2c78Q5h3y4
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1052-135-0x0000000005980000-0x000000000598A000-memory.dmp

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memory/1052-132-0x0000000000EE0000-0x0000000000FD6000-memory.dmp

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memory/1052-133-0x0000000005F60000-0x0000000006504000-memory.dmp

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memory/1052-136-0x0000000006510000-0x00000000065AC000-memory.dmp

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memory/1052-134-0x00000000059B0000-0x0000000005A42000-memory.dmp

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memory/1628-155-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1628-154-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1628-153-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1628-152-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/2376-141-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/2376-143-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/2376-140-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/2376-139-0x0000000000400000-0x000000000047F000-memory.dmp

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