remcos | 2064a4f060420b125d2b8a3185e143ad7b5aa157aa50f898f84e4683d8f5ae41

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 04:14

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General

Target

cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe
Size

336KB
MD5

cea0a279fb115217ec39f4f04181c02f
SHA1

527f0e39c323a251f1f135e9ac72fc9404f8d047
SHA256

2064a4f060420b125d2b8a3185e143ad7b5aa157aa50f898f84e4683d8f5ae41
SHA512

9721864f363dcaba8ea9953e4b42dab2dfcc0e34da1ed592f3a562ca41301b779be98dc73c177f262cf591d862a1d4c5da1c0d44c9d739ade02fbe0a7da8f498
SSDEEP

6144:95bGfIow+ftRUZB4rKIt8ZB1apjB/C4bxAcw6bh0yH1z85iL1g99:9sIp+fQ2rKe8ZBQ9C4bHwOrz8ELq

Score

10^/10

remcos princehost agilenet discovery persistence rat

Malware Config

Extracted

Family

remcos

Version

2.0.5 Pro

Botnet

PrinceHost

Prince.jumpingcrab.com:1990

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
kjuhyt
keylog_path
%AppData%
mouse_option
false
mutex
kiuyt-YWU9I4
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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe	cmd.exe

Executes dropped EXE 3 IoCs

pid	Process
2888	Window Desktop Manager.exe
2660	Window Desktop Manager.exe
2904	Window Desktop Manager.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/2148-3-0x0000000000430000-0x0000000000458000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Window Desktop Manager = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\Window Desktop Manager.exe -boot"	Window Desktop Manager.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2904	2888	Window Desktop Manager.exe	37

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 6 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	Window Desktop Manager.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Window Desktop Manager.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Window Desktop Manager.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2888	Window Desktop Manager.exe
2888	Window Desktop Manager.exe
2888	Window Desktop Manager.exe
2888	Window Desktop Manager.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe
Token: SeDebugPrivilege	2888	Window Desktop Manager.exe
Token: SeDebugPrivilege	2660	Window Desktop Manager.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2904	Window Desktop Manager.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 1908	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	31
PID 2148 wrote to memory of 1908	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	31
PID 2148 wrote to memory of 1908	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	31
PID 2148 wrote to memory of 1908	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	31
PID 2148 wrote to memory of 2804	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	33
PID 2148 wrote to memory of 2804	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	33
PID 2148 wrote to memory of 2804	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	33
PID 2148 wrote to memory of 2804	2148	cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe	33
PID 1936 wrote to memory of 2888	1936	explorer.exe	35
PID 1936 wrote to memory of 2888	1936	explorer.exe	35
PID 1936 wrote to memory of 2888	1936	explorer.exe	35
PID 1936 wrote to memory of 2888	1936	explorer.exe	35
PID 2888 wrote to memory of 2660	2888	Window Desktop Manager.exe	36
PID 2888 wrote to memory of 2660	2888	Window Desktop Manager.exe	36
PID 2888 wrote to memory of 2660	2888	Window Desktop Manager.exe	36
PID 2888 wrote to memory of 2660	2888	Window Desktop Manager.exe	36
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37
PID 2888 wrote to memory of 2904	2888	Window Desktop Manager.exe	37

C:\Users\Admin\AppData\Local\Temp\cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\cea0a279fb115217ec39f4f04181c02f_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  PID:1908
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\System32\explorer.exe" /c, "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2660
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Desktop Manager.exe

Filesize
336KB

MD5
cea0a279fb115217ec39f4f04181c02f

SHA1
527f0e39c323a251f1f135e9ac72fc9404f8d047

SHA256
2064a4f060420b125d2b8a3185e143ad7b5aa157aa50f898f84e4683d8f5ae41

SHA512
9721864f363dcaba8ea9953e4b42dab2dfcc0e34da1ed592f3a562ca41301b779be98dc73c177f262cf591d862a1d4c5da1c0d44c9d739ade02fbe0a7da8f498

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

Filesize
79B

MD5
369d15e0db8cd0318a650928fa4079d7

SHA1
0d527e64939482296239fa7aa039c45c2d3bed4b

SHA256
27b12003e599ab24a93db4ad6b7d1e26e8dd611d8b1a8d877f69cf103ce540bd

SHA512
c059f32b18f7ed46d3957a2d0858dee1064acc3400517586517d37381ab4e1d0dea45b87413f135c12e3cb1ade939002a68177c64bfebf524f42290ac1b15373

Download Submit
memory/2148-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2148-1-0x0000000000390000-0x00000000003EC000-memory.dmp

Filesize
368KB

Download
memory/2148-2-0x00000000003F0000-0x000000000042A000-memory.dmp

Filesize
232KB

Download
memory/2148-3-0x0000000000430000-0x0000000000458000-memory.dmp

Filesize
160KB

Download
memory/2148-4-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-8-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2888-11-0x0000000000970000-0x00000000009CC000-memory.dmp

Filesize
368KB

Download
memory/2904-15-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-17-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-19-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-21-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2904-23-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-26-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-28-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-29-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-14-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download