remcos | 90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91d

General

Target

90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe
Size

1.2MB
MD5

29e498d65926eedeaff13295c86a8250
SHA1

da518bcb99bc7bc53f33016e5cb083290acc5cda
SHA256

90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91d
SHA512

c593a3c07b5cde55a248689c49af18f947e391c6ffea1a3a4724ab285d953a4b9132ea182006d4a0f32dc7922077c036af3bf064bcb4f17ed0b197ad1985d471
SSDEEP

24576:+xtcKivRdWnSyESyfE75BP/+mgWdm/bTSDLKWB7:+0KmXWSyXr2mgxvSP

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.149.241.4:74

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-OFCAG3
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
Remcos family
remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3588 set thread context of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96

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	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe
3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe
3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96
PID 3588 wrote to memory of 3660	3588	90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe	96

C:\Users\Admin\AppData\Local\Temp\90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe
"C:\Users\Admin\AppData\Local\Temp\90c5894bc2d65e711ba6ac60ad15c0313c20cc8a26a6b2ca1edb7b395a60d91dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:3660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3588-10-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3588-4-0x00000000056E0000-0x0000000005772000-memory.dmp

Filesize
584KB

Download
memory/3588-0-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/3588-12-0x0000000007740000-0x000000000775A000-memory.dmp

Filesize
104KB

Download
memory/3588-11-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3588-5-0x00000000055A0000-0x00000000055E4000-memory.dmp

Filesize
272KB

Download
memory/3588-6-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3588-7-0x0000000005940000-0x000000000594A000-memory.dmp

Filesize
40KB

Download
memory/3588-8-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3588-9-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/3588-2-0x0000000005640000-0x00000000056DC000-memory.dmp

Filesize
624KB

Download
memory/3588-1-0x00000000009C0000-0x0000000000B00000-memory.dmp

Filesize
1.2MB

Download
memory/3588-3-0x0000000005C90000-0x0000000006234000-memory.dmp

Filesize
5.6MB

Download
memory/3588-13-0x0000000006F30000-0x0000000006F36000-memory.dmp

Filesize
24KB

Download
memory/3588-19-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3660-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3660-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3660-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3660-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3660-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3660-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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