remcos | 40a4b12c7c640f2aab54020b79d687b994f9e6b180dd213e9923e416308a7003

General

Target

2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
Size

738KB
MD5

d34ed02f5df21129c5b0e6bc847b7edf
SHA1

ec5c08fc92955495bbe41a581fc2385f3bf3f897
SHA256

2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f
SHA512

f8f36ad34ca36baf2f5fbad09326c9e0f66059beb68f3743f4435f7b0a933d13d964cb96d1b2334ec6e667d4868cbc99d7580502a2016baf8838e58a1f25df1d
SSDEEP

12288:D5A/1ck0MVNsspCbS5IUQinQic+fRlFqkwch2JJxqUcmpvj6SCKVEYbXuhhookb7:lAnpCkIUQin9RlNhEJIUcmpvjLpVivhV

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.111.234.100:5888

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-L3B6TW
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
Remcos family
remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 812 set thread context of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.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 3 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	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.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
2808	schtasks.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 812 wrote to memory of 2808	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	31
PID 812 wrote to memory of 2808	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	31
PID 812 wrote to memory of 2808	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	31
PID 812 wrote to memory of 2808	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	31
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33
PID 812 wrote to memory of 2716	812	2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe	33

C:\Users\Admin\AppData\Local\Temp\2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
"C:\Users\Admin\AppData\Local\Temp\2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:812
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pdvEmwbzGcyeD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFDC0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2808
- C:\Users\Admin\AppData\Local\Temp\2dc3362aa16ce15c6e19369b6a8fc2e4b858e8f3afdd9319a1d2970f427a025f.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716

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\tmpFDC0.tmp

Filesize
1KB

MD5
67a1e92f221b4f079121c9ab6977b722

SHA1
4786442477a74978b460350478693e9b437d01f0

SHA256
127e69525425f27fe3be11ff16425da36e78014f2389a41fc453f8e8249087b6

SHA512
d8fc8577459230f379da1e845f3b1605d657cdeb6b386dcf600cd95f5057659d3e1c576d61bb0938a15469386c89031a53e9599d0e11a2040c08b26a5d53a945

Download Submit
memory/812-0-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/812-1-0x0000000000860000-0x000000000091E000-memory.dmp

Filesize
760KB

Download
memory/812-2-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/812-3-0x0000000000250000-0x000000000025A000-memory.dmp

Filesize
40KB

Download
memory/812-4-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/812-5-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/812-6-0x00000000052B0000-0x000000000536C000-memory.dmp

Filesize
752KB

Download
memory/812-7-0x0000000000650000-0x00000000006CA000-memory.dmp

Filesize
488KB

Download
memory/812-27-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-22-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-15-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-14-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-26-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-25-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-24-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-11-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-19-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-18-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-17-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-13-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-12-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-28-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-29-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-30-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-31-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-32-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-33-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-34-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-35-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-36-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2716-37-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads