remcos | 1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4

General

Target

0988986.exe
Size

897KB
MD5

00cb16ec61346dc7a4410acbb683a6f2
SHA1

d4c2741a51aef320c23e66221741bdbfbda9ddea
SHA256

1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4
SHA512

e33736dcb7e553bfdfc708c948413630496befdc9fc4bf5a83e42cea93ea400624379aeca984636b066c7d2377a524ce00112215c68a9dd6b4bdd9aba845ed9d
SSDEEP

24576:qgEceydzP4Nj+x/SZ/Jk9R9Hq9AfQaz/smsNqGxDeI:qVkjmK9R9K9Af7sN3

Score

10^/10

remcos mekus discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

mekus

C2

dpm-sael.com:2017

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
meckus-ODY51K
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2404	powershell.exe
2848	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1716 set thread context of 2616	1716	0988986.exe	34

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 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0988986.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0988986.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
836	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2848	powershell.exe
2404	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	2404	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2616	0988986.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2404	1716	0988986.exe	28
PID 1716 wrote to memory of 2404	1716	0988986.exe	28
PID 1716 wrote to memory of 2404	1716	0988986.exe	28
PID 1716 wrote to memory of 2404	1716	0988986.exe	28
PID 1716 wrote to memory of 2848	1716	0988986.exe	30
PID 1716 wrote to memory of 2848	1716	0988986.exe	30
PID 1716 wrote to memory of 2848	1716	0988986.exe	30
PID 1716 wrote to memory of 2848	1716	0988986.exe	30
PID 1716 wrote to memory of 836	1716	0988986.exe	32
PID 1716 wrote to memory of 836	1716	0988986.exe	32
PID 1716 wrote to memory of 836	1716	0988986.exe	32
PID 1716 wrote to memory of 836	1716	0988986.exe	32
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34
PID 1716 wrote to memory of 2616	1716	0988986.exe	34

C:\Users\Admin\AppData\Local\Temp\0988986.exe
"C:\Users\Admin\AppData\Local\Temp\0988986.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\0988986.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2404
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jcXOqLBJLRu.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2848
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jcXOqLBJLRu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB56A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:836
- C:\Users\Admin\AppData\Local\Temp\0988986.exe
  "C:\Users\Admin\AppData\Local\Temp\0988986.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
44e08f01946a132826b8fa8b862192f9

SHA1
426bbd7f7f73706a1c418368513c33d665701b75

SHA256
1ec68b3f9ab5b0a50ce493da922e588f62cd902410c2bfd297834e80f78c12b8

SHA512
6c53d5c97eea145a8e86c3e63f1c4cd713f5fa9e8121c0eff9ace55aa7d3dae04e500199a233367091c604870f7fb878873fa0929312938b2ff1c37790bd13b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB56A.tmp

Filesize
1KB

MD5
58e96333ce811eabb9c05609d7f6e7ef

SHA1
e8bd0932d5846ca3e103378a476e345891e58387

SHA256
aa028dcc3b2719802ecbeb69104fa5460c11995a30ea57b726b1793f19333ed1

SHA512
1503cdb91a61a54f9a627dff90d64981946f50bd5f75f09cf62f26f733d1f213a03dad330f6ce4402b7518ecbd7c6d2e7a20a2498eda7619081b7cc868fe5a38

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\WYYCP1JDFTMY08007RBT.temp

Filesize
7KB

MD5
f7e873974c46d79b1ddcc1d484308cb7

SHA1
9f1210d4735b735f2a77f1621df903dfd399a60e

SHA256
3450722c137b102c925016f653febd2d37d9d62ec24ab6a86ed6ef316059c8e5

SHA512
489d6b5809ae1b49576039fd5012c3363e18aa4ff4b129dbf44cb7e021696251adc4ccbcdcf44bd036c53a1b3821ecf2ac639effa3b196537c9a12ef99f079fa

Download Submit
memory/1716-0-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/1716-1-0x0000000000940000-0x0000000000A26000-memory.dmp

Filesize
920KB

Download
memory/1716-2-0x0000000074460000-0x0000000074B4E000-memory.dmp

Filesize
6.9MB

Download
memory/1716-3-0x0000000000420000-0x0000000000432000-memory.dmp

Filesize
72KB

Download
memory/1716-4-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/1716-5-0x0000000074460000-0x0000000074B4E000-memory.dmp

Filesize
6.9MB

Download
memory/1716-6-0x0000000005440000-0x0000000005500000-memory.dmp

Filesize
768KB

Download
memory/1716-42-0x0000000074460000-0x0000000074B4E000-memory.dmp

Filesize
6.9MB

Download
memory/2616-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads