remcos | ca3bb8d7b3a66189add3fdd0dac2403783af3e4d36a117aad422647e3d7223d9

General

Target

a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe
Size

1.1MB
MD5

86e5451f3367e6580295e46b33d3d8ea
SHA1

b27ac49886349182a8f3cb9cdd7eaed0438ba3a3
SHA256

a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49
SHA512

1b0bfc3df08ef499b2c1d7d24f9e31a027c98592645512d73cd58b50f12d52fda4a1287a7a61e6e7ce63a418db393c3546586ea6bf043e8a9de873a2e0ac85eb
SSDEEP

12288:P2yGdJI1QkIO0QRBajzGStJLkGwiAlVXAjxfkc14c1ZTii1/RwCmcJwAFxrXbqs8:PfOiavjzGStJLXwiyAjxfkcacLOxjA4

Score

10^/10

remcos 10 discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

10

C2

duckdne7832732.duckdns.org:1718

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-RN68N0
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
take_screenshot_title
wikipedia;solitaire;

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2232 set thread context of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2696	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3044	RegSvcs.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2696	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	31
PID 2232 wrote to memory of 2696	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	31
PID 2232 wrote to memory of 2696	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	31
PID 2232 wrote to memory of 2696	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	31
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33
PID 2232 wrote to memory of 3044	2232	a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe	33

C:\Users\Admin\AppData\Local\Temp\a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe
"C:\Users\Admin\AppData\Local\Temp\a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VuYmmGpWGSWON" /XML "C:\Users\Admin\AppData\Local\Temp\tmp32D3.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2696
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp32D3.tmp

Filesize
1KB

MD5
6aa6ff7a8f596daf7c13f072509d2789

SHA1
664e640769d007621bff55099c20a3c793a04cc2

SHA256
c97ccba91af0a6292f051071e8dd31071bfec4ff07f9cda2e80a797d914e9dee

SHA512
48240cc27237528b2ec6a3a2e16c9b53cbabec26cc7ed5f485258631c58ad973495512f30ce1da533e48d606523ba415a669baa0870f91c79fcc8c5ad0de7a34

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
2c37d363ab76ababd52577823730eb44

SHA1
7fea3274e7d445efef7df2d010552ddd69c5c05a

SHA256
428e31c45503f4ee6c4d4a26f1dd17123067049368a66ddfda15807ae83c16a8

SHA512
ed6c54028573112b977b1ca8849445d5a87b78103f25739da98dc145a3dcfa6042cb7e8255bd4a40aa13856f11b483d07b21af4fce264ca32c715409286fc1ec

Download Submit
memory/2232-27-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-1-0x00000000013A0000-0x00000000014B2000-memory.dmp

Filesize
1.1MB

Download
memory/2232-2-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-3-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/2232-4-0x00000000747BE000-0x00000000747BF000-memory.dmp

Filesize
4KB

Download
memory/2232-5-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-6-0x0000000005070000-0x00000000050E2000-memory.dmp

Filesize
456KB

Download
memory/2232-7-0x0000000001040000-0x0000000001066000-memory.dmp

Filesize
152KB

Download
memory/2232-0-0x00000000747BE000-0x00000000747BF000-memory.dmp

Filesize
4KB

Download
memory/3044-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3044-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads