remcos | a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/06/2024, 18:24

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General

Target
a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe
Size 956KB
Sample240601-w16xtsbf82
SHA256 a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414
MD5 bcfbdabc2a14554361d9b059994b6a12
SHA1 47be4fba1c7ea488a3a62cd0b77e3ca029153799
SHA512 935e21db15d7985f8efd5efc68ae144dda26bf8a0a5589775802336403865391b731b8c57c539067b60e1ab55874aa6d360880aabefdfcf00370cb452cf55db7
SSDEEP 24576:2GwNvqU7f0Sjft8C7TPJCe84ootb1uuzUzn:2Gw5qU7f0SJ8cbJC8oI4uoz
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
AnyDesk.exe
copy_folder
AnyDesk
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
AnyDesk
mouse_option
false
mutex
AnyDesk-8BNQK6
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe

Executes dropped EXE 4 IoCs

pid	Process
1388	AnyDesk.exe
1960	AnyDesk.exe
1532	AnyDesk.exe
2572	AnyDesk.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AnyDesk-8BNQK6 = "\"C:\\ProgramData\\AnyDesk\\AnyDesk.exe\""	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AnyDesk-8BNQK6 = "\"C:\\ProgramData\\AnyDesk\\AnyDesk.exe\""	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AnyDesk-8BNQK6 = "\"C:\\ProgramData\\AnyDesk\\AnyDesk.exe\""	AnyDesk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AnyDesk-8BNQK6 = "\"C:\\ProgramData\\AnyDesk\\AnyDesk.exe\""	AnyDesk.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3528 set thread context of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 1388 set thread context of 2572	1388	AnyDesk.exe	96

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1388	AnyDesk.exe
1388	AnyDesk.exe
1388	AnyDesk.exe
1388	AnyDesk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1388	AnyDesk.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2572	AnyDesk.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 3528 wrote to memory of 376	3528	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	92
PID 376 wrote to memory of 1388	376	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	93
PID 376 wrote to memory of 1388	376	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	93
PID 376 wrote to memory of 1388	376	a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe	93
PID 1388 wrote to memory of 1960	1388	AnyDesk.exe	94
PID 1388 wrote to memory of 1960	1388	AnyDesk.exe	94
PID 1388 wrote to memory of 1960	1388	AnyDesk.exe	94
PID 1388 wrote to memory of 1532	1388	AnyDesk.exe	95
PID 1388 wrote to memory of 1532	1388	AnyDesk.exe	95
PID 1388 wrote to memory of 1532	1388	AnyDesk.exe	95
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96
PID 1388 wrote to memory of 2572	1388	AnyDesk.exe	96

C:\Users\Admin\AppData\Local\Temp\a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe
"C:\Users\Admin\AppData\Local\Temp\a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Users\Admin\AppData\Local\Temp\a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe
  "C:\Users\Admin\AppData\Local\Temp\a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:376
- - C:\ProgramData\AnyDesk\AnyDesk.exe
    "C:\ProgramData\AnyDesk\AnyDesk.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1388
  - - C:\ProgramData\AnyDesk\AnyDesk.exe
      "C:\ProgramData\AnyDesk\AnyDesk.exe"
      4⤵
      Executes dropped EXE
      PID:1960
  - - C:\ProgramData\AnyDesk\AnyDesk.exe
      "C:\ProgramData\AnyDesk\AnyDesk.exe"
      4⤵
      Executes dropped EXE
      PID:1532
  - - C:\ProgramData\AnyDesk\AnyDesk.exe
      "C:\ProgramData\AnyDesk\AnyDesk.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetWindowsHookEx
      PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

AnyDesk.exe

Path C:\ProgramData\AnyDesk\AnyDesk.exe
Size 956KB
SHA256 a93da2b46e3bf10f938de8717f3a86ee4375ea9119b3207c1c9d166e1e149414
MD5 bcfbdabc2a14554361d9b059994b6a12
SHA1 47be4fba1c7ea488a3a62cd0b77e3ca029153799
SHA512 935e21db15d7985f8efd5efc68ae144dda26bf8a0a5589775802336403865391b731b8c57c539067b60e1ab55874aa6d360880aabefdfcf00370cb452cf55db7
SSDEEP 24576:2GwNvqU7f0Sjft8C7TPJCe84ootb1uuzUzn:2Gw5qU7f0SJ8cbJC8oI4uoz
MD5 SHA1 SHA512 SSDEEP

Submit Download

logs.dat

Path C:\ProgramData\AnyDesk\logs.dat
Size 144B
SHA256 a7dd14197c31c5437bcdb0765e749e1e63e061abe7cd6d10f1bb50bfaf51c600
MD5 aaf2f8c0dc3767ba7642384e60b13c87
SHA1 601073fb7723b1146361668cb13b8ef99440747b
SHA512 dfc65e940d12aa5deebc48a4e21af9885ba29e404be3f5d25a91931bb0e2403a611520816f7962d86af025d85a89bfaca198300c36ed3e8539ed9ed3ee5a6506
MD5 SHA1 SHA512

Submit Download

memory/376-10-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/376-26-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/376-14-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/376-13-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/376-11-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1388-41-0x0000000074160000-0x0000000074910000-memory.dmp

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memory/1388-29-0x0000000074160000-0x0000000074910000-memory.dmp

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memory/1388-28-0x000000007416E000-0x000000007416F000-memory.dmp

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memory/2572-46-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-58-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-72-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-71-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-66-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-65-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-60-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-47-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-53-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-35-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-40-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-39-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-36-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2572-52-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3528-4-0x0000000005640000-0x000000000564A000-memory.dmp

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memory/3528-0-0x000000007484E000-0x000000007484F000-memory.dmp

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memory/3528-1-0x0000000000B50000-0x0000000000C42000-memory.dmp

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memory/3528-2-0x0000000005BA0000-0x0000000006144000-memory.dmp

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memory/3528-3-0x0000000005690000-0x0000000005722000-memory.dmp

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memory/3528-9-0x000000000A8A0000-0x000000000A93C000-memory.dmp

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memory/3528-5-0x0000000074840000-0x0000000074FF0000-memory.dmp

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memory/3528-6-0x0000000008040000-0x0000000008058000-memory.dmp

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memory/3528-16-0x0000000074840000-0x0000000074FF0000-memory.dmp

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memory/3528-7-0x0000000006850000-0x0000000006860000-memory.dmp

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memory/3528-8-0x0000000006AD0000-0x0000000006B90000-memory.dmp

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