remcos | eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 19:56

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General

Target

JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe
Size

1.0MB
MD5

31cadb8fd44b7505ebb10496d9473137
SHA1

12f2f50630a93099cc7805dec612c45e7d95aace
SHA256

eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f
SHA512

33fd7ca1afc6eb3eaf2295c26622e187ee59d7b7557c082f6ab86855926bc243ade2f018691180081d81faac21c174eadc213fb9852dcddc47693f5ecd028788
SSDEEP

24576:RrzUovxWtqruEQY3J+bP2XMmLA6/BABT/9:5zVv0WrQlPqc6y/9

Score

10^/10

remcos karen discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

KAREN

colpengaer.duckdns.org:1717

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-66R7XG
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
wikipedia;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 2324 set thread context of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2156	RegSvcs.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2828	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	31
PID 2324 wrote to memory of 2828	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	31
PID 2324 wrote to memory of 2828	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	31
PID 2324 wrote to memory of 2828	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	31
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33
PID 2324 wrote to memory of 2156	2324	JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eef9c08880458efef330e16b28b5d801d75163fc96730a08d2f7035e9dec781f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tGNKOX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5496.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5496.tmp

Filesize
1KB

MD5
062b078abc3e8a45c22c379158c1179e

SHA1
fdd969bbe315db27a8d41da3bb3e5087c3d3d46f

SHA256
fdc1bd65af68d777a0a79a0a52fbda4e58a508177b24fcdda21202b8642428df

SHA512
103f8acea753ebc4be58db1d3ca1d3aca2f52a15dcb1ede51db082206ec541f82a73fb89dd7d486e89ff961c5af194374453665b0ef82293c6405bb7b291f47b

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

Filesize
74B

MD5
5538dec06810a86e8da3a657ba815391

SHA1
f5e2e0964f873f1f322880e05ccdb971ef62f386

SHA256
cccdf91f08795f725a5d5f7897240a1931312b289251557154185f7bd561bd74

SHA512
057482dc94db1183367e5f65945c77b176c2d7192b3ba122965b027b4eeaa41ac0be85289c7f1c73e50ce20a346d0e1291395984930a4973dbc96c4a777da148

Download Submit
memory/2156-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-76-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-81-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-80-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-19-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2156-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-79-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-78-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-75-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-74-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-29-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-72-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-45-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-42-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-43-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-44-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-46-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-47-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-48-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-49-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-50-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2156-70-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2324-3-0x0000000000350000-0x000000000035A000-memory.dmp

Filesize
40KB

Download
memory/2324-27-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2324-7-0x0000000000BB0000-0x0000000000C36000-memory.dmp

Filesize
536KB

Download
memory/2324-6-0x0000000005310000-0x00000000053CE000-memory.dmp

Filesize
760KB

Download
memory/2324-5-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2324-4-0x000000007448E000-0x000000007448F000-memory.dmp

Filesize
4KB

Download
memory/2324-2-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2324-1-0x0000000000170000-0x000000000027E000-memory.dmp

Filesize
1.1MB

Download
memory/2324-0-0x000000007448E000-0x000000007448F000-memory.dmp

Filesize
4KB

Download