remcos | 353fc4210bc103d84f0a67dfd4a1a32762484f51d7af15da4080c8efd2752a5a

General

Target

JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe
Size

765KB
MD5

6cfab0d526994b9b98582a693fa58fc1
SHA1

16deda32ed2a9268e9bfc4d23d21a519cf720fb8
SHA256

353fc4210bc103d84f0a67dfd4a1a32762484f51d7af15da4080c8efd2752a5a
SHA512

3d11e04effbf50f57cf2879c71c8bffc6d17b3f973e1b0fffdcc816d178656c262a0fe0fe301670abd034abcb6ba09969452cab4ead67d5ff8407f87dbacfd38
SSDEEP

12288:GmI69Fwmp5ofY7Q8TrardB+SlRnM+/NwaGfm8Jn3GQLdhu7o5ZV75cNUJGAfQ:Gf69Fv5f7QlZPlS+/VGfmA3GQju85nV+

Score

10^/10

remcos servers discovery rat

Malware Config

Extracted

Family

remcos

Version

3.1.4 Pro

Botnet

servers

C2

kashbilly2.ddns.net:6060

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-XI8GX1
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
take_screenshot_title
notepad;solitaire;

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 4412 set thread context of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99

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	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2300	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99
PID 4412 wrote to memory of 2300	4412	JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cfab0d526994b9b98582a693fa58fc1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2300

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
148B

MD5
f634b0f9cbdfcf47bfb20622b1bff141

SHA1
7f320ae72583a1b6ebe6e2d09d6d0ac055717d98

SHA256
a240b8185532b206b2f89508718af1ded73c0fe049375548a874af123c9225e7

SHA512
3ae0a8166bea137cb803b61bd436550e0a6c8df401d1a768391092207a2fcf7db265bf576dab897be2bf6d4a34e07187363aa2b3998c836bd539574f93517837

Download Submit
memory/2300-11-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2300-23-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2300-19-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2300-18-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2300-14-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2300-12-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4412-4-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4412-8-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4412-9-0x0000000007A20000-0x0000000007ABC000-memory.dmp

Filesize
624KB

Download
memory/4412-10-0x0000000007BF0000-0x0000000007C8C000-memory.dmp

Filesize
624KB

Download
memory/4412-7-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/4412-6-0x0000000005220000-0x000000000522E000-memory.dmp

Filesize
56KB

Download
memory/4412-5-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4412-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/4412-3-0x0000000004D30000-0x0000000004DC2000-memory.dmp

Filesize
584KB

Download
memory/4412-20-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4412-2-0x0000000005240000-0x00000000057E4000-memory.dmp

Filesize
5.6MB

Download
memory/4412-1-0x0000000000240000-0x0000000000306000-memory.dmp

Filesize
792KB

Download

Analysis

Sharing