remcos | eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3

Analysis

max time kernel
119s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 00:18

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General

Target

eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe
Size

2.7MB
MD5

9fda0d7da41796012a1a0b676759ad10
SHA1

0ca6ee48a992db69e6b7399ba950a522dff901c6
SHA256

eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3
SHA512

9b6e38f621ea25ae93dac5c940105526aef21aaa64bc1e41813d7d40f9cc0fb8f45b47b208e80ee484ba5b8f77e84ad3193d86baa2f6463a416c2b96ee2fe8ad
SSDEEP

24576:cF/QN9k6T9Z/RM/vtJr0ymdA1HQe3gRBtA:cxQxTP/RAVR0y7l3gPtA

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:52121

officerem.duckdns.org:52121

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-6GPUH1
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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4672 set thread context of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85

System Location Discovery: System Language Discovery 1 TTPs 1 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	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 3116	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	82
PID 4672 wrote to memory of 2172	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	83
PID 4672 wrote to memory of 2172	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	83
PID 4672 wrote to memory of 2172	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	83
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 2636	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	84
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 3860	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	85
PID 4672 wrote to memory of 4044	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	86
PID 4672 wrote to memory of 4044	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	86
PID 4672 wrote to memory of 4044	4672	eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe	86

C:\Users\Admin\AppData\Local\Temp\eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe
"C:\Users\Admin\AppData\Local\Temp\eaf7c6e0789fc11c3fee10faa8821bfe0934f5ab771196f7898c60ad1532abb3N.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Windows\System32\calc.exe
  "C:\Windows\System32\calc.exe"
  2⤵
  PID:3116
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2172
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:2636
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3860
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  PID:4044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3860-4-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4672-1-0x00000221E3A60000-0x00000221E3A68000-memory.dmp

Filesize
32KB

Download
memory/4672-0-0x00007FFDEB623000-0x00007FFDEB625000-memory.dmp

Filesize
8KB

Download
memory/4672-2-0x00000221FDF00000-0x00000221FDFCE000-memory.dmp

Filesize
824KB

Download
memory/4672-3-0x00007FFDEB620000-0x00007FFDEC0E1000-memory.dmp

Filesize
10.8MB

Download
memory/4672-5-0x00007FFDEB620000-0x00007FFDEC0E1000-memory.dmp

Filesize
10.8MB

Download