remcos | 5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93

General

Target

5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe
Size

2.0MB
MD5

0bca1388252ea2cf2369f0a4ccb4dfaa
SHA1

be4ae55a2a5faba06302c1ee30fb5b0a52947e8c
SHA256

5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93
SHA512

a50b898d332c878405bf9e82c478c83708c8101cc8c44e8422382fd1f08ac677dea2c8ea95bf994d37622e50e8f0fee2b0a55778d6aca06e8346b614651cb352
SSDEEP

12288:t+LbX5HPxKOza48US5HbWjKEhz8DEkE+jZZk/TVRzAy1LsAoKLjmVD1O:ALlHPIgtSxbSKEHkH+/TVRzVsA6VD1O

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.220.30:8080

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-SF7E52
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

Processes:

5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe

description	pid	process	target process
PID 2116 set thread context of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe

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

Processes:

wmplayer.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmplayer.exe
Runs regedit.exe 1 IoCs

Processes:

regedit.exe

pid process

592 regedit.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmplayer.exe

pid	process
592	regedit.exe

Suspicious use of WriteProcessMemory 53 IoCs

Processes:

5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe

description	pid	process	target process
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 2900	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	notepad.exe
PID 2116 wrote to memory of 1000	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	csc.exe
PID 2116 wrote to memory of 1000	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	csc.exe
PID 2116 wrote to memory of 1000	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	csc.exe
PID 2116 wrote to memory of 1000	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	csc.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 592	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	regedit.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2628	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	calc.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2612	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	wmplayer.exe
PID 2116 wrote to memory of 2660	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	WerFault.exe
PID 2116 wrote to memory of 2660	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	WerFault.exe
PID 2116 wrote to memory of 2660	2116	5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe
"C:\Users\Admin\AppData\Local\Temp\5203fd5ed14de900105554d7ee1b50368337075bcd1d12734def01a96f3bba93.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:2900
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  PID:1000
- C:\Windows\regedit.exe
  "C:\Windows\regedit.exe"
  2⤵
  - Runs regedit.exe
  PID:592
- C:\Windows\System32\calc.exe
  "C:\Windows\System32\calc.exe"
  2⤵
  PID:2628
- C:\Program Files (x86)\Windows Media Player\wmplayer.exe
  "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2116 -s 664
  2⤵
  PID:2660

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/2116-1-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Filesize
24KB

Download
memory/2116-2-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

Filesize
9.9MB

Download
memory/2116-3-0x000000001A7A0000-0x000000001A872000-memory.dmp

Filesize
840KB

Download
memory/2116-80-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

Filesize
9.9MB

Download
memory/2116-0-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

Filesize
4KB

Download
memory/2612-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2612-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-6-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-4-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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