remcos | 719686d223996f393df2f0fb5ae0f8097bb6a2a3bed505c0876af931d65d18e4

General

Target

e9718cd733831176098361ad76f39380_JaffaCakes118.exe
Size

692KB
MD5

e9718cd733831176098361ad76f39380
SHA1

d737eb0f1b2bf1ca4bc682c495990baf51e460f2
SHA256

719686d223996f393df2f0fb5ae0f8097bb6a2a3bed505c0876af931d65d18e4
SHA512

d8bb2c60d17e25bfca000fb167c1ad5db7da50d4405a7f684731b04fc1f569725d7817c17284c42c8c95db7ec621272eb2f37b8c8c1dc5fed735aa88c2bcb32f
SSDEEP

12288:ycFUncJ54irus265GoqlDX1YH0COI+w7Ror6PpGg+l2K3RYUO04FZGsk8tge7BOK:mnYnuRcBIoGblBhY9fNOvC

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

79.134.225.7:6661

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
kaduna.exe
copy_folder
kaduna
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
remcos_evlyegqbfdekhrs
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	e9718cd733831176098361ad76f39380_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4312	kaduna.exe
4776	kaduna.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\kaduna\\kaduna.exe\""	e9718cd733831176098361ad76f39380_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\kaduna\\kaduna.exe\""	kaduna.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3276 set thread context of 1564	3276	e9718cd733831176098361ad76f39380_JaffaCakes118.exe	86
PID 4312 set thread context of 4776	4312	kaduna.exe	91

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	e9718cd733831176098361ad76f39380_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9718cd733831176098361ad76f39380_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kaduna.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kaduna.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3344	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3344	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3276	e9718cd733831176098361ad76f39380_JaffaCakes118.exe
3276	e9718cd733831176098361ad76f39380_JaffaCakes118.exe
4312	kaduna.exe
4312	kaduna.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3276	e9718cd733831176098361ad76f39380_JaffaCakes118.exe
4312	kaduna.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4776	kaduna.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3276 wrote to memory of 1564	3276	e9718cd733831176098361ad76f39380_JaffaCakes118.exe	86
PID 3276 wrote to memory of 1564	3276	e9718cd733831176098361ad76f39380_JaffaCakes118.exe	86
PID 3276 wrote to memory of 1564	3276	e9718cd733831176098361ad76f39380_JaffaCakes118.exe	86
PID 1564 wrote to memory of 1864	1564	e9718cd733831176098361ad76f39380_JaffaCakes118.exe	87
PID 1564 wrote to memory of 1864	1564	e9718cd733831176098361ad76f39380_JaffaCakes118.exe	87
PID 1564 wrote to memory of 1864	1564	e9718cd733831176098361ad76f39380_JaffaCakes118.exe	87
PID 1864 wrote to memory of 3344	1864	cmd.exe	89
PID 1864 wrote to memory of 3344	1864	cmd.exe	89
PID 1864 wrote to memory of 3344	1864	cmd.exe	89
PID 1864 wrote to memory of 4312	1864	cmd.exe	90
PID 1864 wrote to memory of 4312	1864	cmd.exe	90
PID 1864 wrote to memory of 4312	1864	cmd.exe	90
PID 4312 wrote to memory of 4776	4312	kaduna.exe	91
PID 4312 wrote to memory of 4776	4312	kaduna.exe	91
PID 4312 wrote to memory of 4776	4312	kaduna.exe	91

C:\Users\Admin\AppData\Local\Temp\e9718cd733831176098361ad76f39380_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9718cd733831176098361ad76f39380_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3276
- C:\Users\Admin\AppData\Local\Temp\e9718cd733831176098361ad76f39380_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e9718cd733831176098361ad76f39380_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1564
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1864
  - - C:\Windows\SysWOW64\PING.EXE
      PING 127.0.0.1 -n 2
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:3344
  - - C:\Users\Admin\AppData\Roaming\kaduna\kaduna.exe
      "C:\Users\Admin\AppData\Roaming\kaduna\kaduna.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:4312
    - - C:\Users\Admin\AppData\Roaming\kaduna\kaduna.exe
        
        "C:\Users\Admin\AppData\Roaming\kaduna\kaduna.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:4776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.bat

Filesize
99B

MD5
a0314eedc4314f0a46b7997e26bb1d72

SHA1
ab3c8395380bfddc8d766862003178af2d6db854

SHA256
228019bfefa78744edee687b76bfe4f9fe07c82993702e62e4f09d2b7ffbae33

SHA512
c76fcb1cb25d4d19db7342a971787e8c520eb02be201127c14b759ae91933c1c451e01fabb4f1a72cbcd4d2c4bf8e9e9082ac507718ad15ca2f90936dd885faf

Download Submit
C:\Users\Admin\AppData\Roaming\kaduna\kaduna.exe

Filesize
692KB

MD5
e9718cd733831176098361ad76f39380

SHA1
d737eb0f1b2bf1ca4bc682c495990baf51e460f2

SHA256
719686d223996f393df2f0fb5ae0f8097bb6a2a3bed505c0876af931d65d18e4

SHA512
d8bb2c60d17e25bfca000fb167c1ad5db7da50d4405a7f684731b04fc1f569725d7817c17284c42c8c95db7ec621272eb2f37b8c8c1dc5fed735aa88c2bcb32f

Download Submit
memory/1564-4-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1564-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1564-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1564-15-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3276-0-0x0000000002250000-0x0000000002251000-memory.dmp

Filesize
4KB

Download
memory/3276-1-0x00000000022E0000-0x00000000022F0000-memory.dmp

Filesize
64KB

Download
memory/3276-3-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/3276-6-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4312-20-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4312-23-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4776-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-28-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-29-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4776-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads