remcos | 56e3a565d1b85d3aabc1b2cc8456393cbb7763e15f7ac3bd1bf0a1b17818fc1f

Analysis

max time kernel
178s
max time network
181s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 00:46

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General

Target

2e502f1697f6df31814b10857a86d87c.exe
Size

14.8MB
MD5

2e502f1697f6df31814b10857a86d87c
SHA1

fc8a5140974fc3766c4d90eb7c84f719e0c8ca38
SHA256

56e3a565d1b85d3aabc1b2cc8456393cbb7763e15f7ac3bd1bf0a1b17818fc1f
SHA512

ea9fc1e63d0a79acfce7580983e3487539a8bce5c4b8f83537e04cbc75923017f04a74a4acdc1df7c9b3b7256f4e659cc717032ce4c4e248312b889c35debd46
SSDEEP

393216:CnRjY+LmuERmLf4bDozKBIsCqt/rY5JCbERAGhQdv:CR05UrzKWq5rY26NC

Score

10^/10

remcos mariachi discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

MARIACHI

agosto13.con-ip.com:7775

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
Rmc-CK7NI4
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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 4624 created 3508	4624	2e502f1697f6df31814b10857a86d87c.exe	56

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Drxiiyv = "C:\\Users\\Admin\\AppData\\Roaming\\Drxiiyv.exe"	2e502f1697f6df31814b10857a86d87c.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
8	bitbucket.org
9	bitbucket.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4624 set thread context of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94

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	2e502f1697f6df31814b10857a86d87c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4624	2e502f1697f6df31814b10857a86d87c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4624	2e502f1697f6df31814b10857a86d87c.exe
Token: SeDebugPrivilege	4624	2e502f1697f6df31814b10857a86d87c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1508	AppLaunch.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94
PID 4624 wrote to memory of 1508	4624	2e502f1697f6df31814b10857a86d87c.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3508
- C:\Users\Admin\AppData\Local\Temp\2e502f1697f6df31814b10857a86d87c.exe
  "C:\Users\Admin\AppData\Local\Temp\2e502f1697f6df31814b10857a86d87c.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4624
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1508

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
edd88c330bc4833551b6f961f2d61136

SHA1
ca9087725c530d6d09e828f1f864e87a24213ce5

SHA256
01ee94efe93cb7fd79e03e2f76a156abd1ad933ca7bd1e007cccb21db9eda6b9

SHA512
a38f19fe762994f938f09da58c4390605a2746fc695de8e84d4a94ae75c800a6dcd1ef03bb1402236796ada77b62aaf54ebe0364b22559a9f74785f8574e8f1a

Download Submit
memory/1508-1096-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1508-1108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4624-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/4624-1-0x0000000000690000-0x0000000001568000-memory.dmp

Filesize
14.8MB

Download
memory/4624-2-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-3-0x00000000071E0000-0x00000000072FC000-memory.dmp

Filesize
1.1MB

Download
memory/4624-4-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-13-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-65-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-67-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-63-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-61-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-59-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-57-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-55-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-53-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-51-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-47-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-45-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-43-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-41-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-39-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-37-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-36-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-49-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-33-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-29-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-27-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-26-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-23-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-21-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-19-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-17-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-11-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-9-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-7-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-6-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-31-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-15-0x00000000071E0000-0x00000000072F7000-memory.dmp

Filesize
1.1MB

Download
memory/4624-1076-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-1077-0x0000000007400000-0x0000000007498000-memory.dmp

Filesize
608KB

Download
memory/4624-1078-0x0000000007320000-0x000000000736C000-memory.dmp

Filesize
304KB

Download
memory/4624-1081-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-1084-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/4624-1083-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-1085-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-1086-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-1087-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-1088-0x0000000008050000-0x00000000085F4000-memory.dmp

Filesize
5.6MB

Download
memory/4624-1089-0x0000000006D10000-0x0000000006D64000-memory.dmp

Filesize
336KB

Download
memory/4624-1090-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4624-1095-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download