remcos | 559b6a9797ae592030fc775ec95d30b8dd546811fcab3bd58ecbb078f64698f4

General

Target

f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe
Size

272KB
MD5

f751722632e25b8a9c175d469cc6230b
SHA1

533ed5d8c8adb12a7810e0c6137d9c3b3a66fcd0
SHA256

559b6a9797ae592030fc775ec95d30b8dd546811fcab3bd58ecbb078f64698f4
SHA512

5f7de1517086bec4b90d8c54b0ba7386ab384288cf26623c87ad765d61cec7644cf40fe88104b08521a9ce8c7c02e23d61eeeb5e52bcfbcb00cc9d61509120b6
SSDEEP

3072:ZqCwpCSCQ1mJROWk5CXZkAGf0jcbIB8KADgBBOpOgvKsi:ZSlORFcuZVGPI+jDGgpOUKs

Score

10^/10

remcos discovery persistence rat

Malware Config

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Executes dropped EXE 1 IoCs

pid	Process
2832	HDPeal.exe

Loads dropped DLL 2 IoCs

pid	Process
2292	cmd.exe
2292	cmd.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\wjhjnhtg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\wjhjnhtg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	HDPeal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2872	2832	HDPeal.exe	34

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 4 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	f751722632e25b8a9c175d469cc6230b_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	HDPeal.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
2200	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2200	PING.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe
2832	HDPeal.exe
2832	HDPeal.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe
2832	HDPeal.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2292	2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2292	2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2292	2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2292	2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2292	2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2292	2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2292	2380	f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe	30
PID 2292 wrote to memory of 2200	2292	cmd.exe	32
PID 2292 wrote to memory of 2200	2292	cmd.exe	32
PID 2292 wrote to memory of 2200	2292	cmd.exe	32
PID 2292 wrote to memory of 2200	2292	cmd.exe	32
PID 2292 wrote to memory of 2832	2292	cmd.exe	33
PID 2292 wrote to memory of 2832	2292	cmd.exe	33
PID 2292 wrote to memory of 2832	2292	cmd.exe	33
PID 2292 wrote to memory of 2832	2292	cmd.exe	33
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34
PID 2832 wrote to memory of 2872	2832	HDPeal.exe	34

C:\Users\Admin\AppData\Local\Temp\f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f751722632e25b8a9c175d469cc6230b_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Windows\SysWOW64\PING.EXE
    PING 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2200
- - C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
    "C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2832
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe
      4⤵
      PID:2872

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

Remote System Discovery

1

T1018

System Information Discovery

1

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
104B

MD5
9e63d0d86376e45cfd856537efb86171

SHA1
566c68ff9c1f2fa5a75207258b1092447e81fcce

SHA256
6f6f2f859525c5c8668364d9feb6da278eee5ed59580a5184e8dda65832cce7d

SHA512
d5359f1a3701a010c3fb90faac3da226881c6777dd7e1bfaf475cef0f18f6dfab9f317ac3431daa77869b2872f5a5c9a16cad10bc51a5d127219a095df7ccb98

Download Submit
\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe

Filesize
272KB

MD5
f751722632e25b8a9c175d469cc6230b

SHA1
533ed5d8c8adb12a7810e0c6137d9c3b3a66fcd0

SHA256
559b6a9797ae592030fc775ec95d30b8dd546811fcab3bd58ecbb078f64698f4

SHA512
5f7de1517086bec4b90d8c54b0ba7386ab384288cf26623c87ad765d61cec7644cf40fe88104b08521a9ce8c7c02e23d61eeeb5e52bcfbcb00cc9d61509120b6

Download Submit
memory/2380-2-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2380-3-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2380-14-0x0000000072940000-0x0000000072A60000-memory.dmp

Filesize
1.1MB

Download
memory/2380-17-0x0000000072940000-0x0000000072A60000-memory.dmp

Filesize
1.1MB

Download
memory/2380-16-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2832-25-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2832-26-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2832-29-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2832-30-0x0000000072940000-0x0000000072A93000-memory.dmp

Filesize
1.3MB

Download
memory/2872-43-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2872-41-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2872-39-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2872-37-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2872-35-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2872-33-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2872-31-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2872-46-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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