metasploit | e0141eb37454ac2c0a9ed115d93b92f0d74f663471f7a2994fc5efd65cf6d2fe

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 08:35

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General

Target

c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe
Size

172KB
MD5

c1b66518ca3bfc089466bb62da627951
SHA1

18b4ecdb441299cda5f1423e185ebcdc31b7c4d5
SHA256

e0141eb37454ac2c0a9ed115d93b92f0d74f663471f7a2994fc5efd65cf6d2fe
SHA512

fe6ea6d049b2cb96b22f6128d7c12dc96ab1fc572b3135600c90a60b04abb7ab6e90bfcaeb2c8410b0ed195db790fd7fb8cd07445d5cfdf4f70b36f077ad6139
SSDEEP

3072:IE2He2ONuUxQfLDeqYS8mNJsfbN6JT9+ht:I5+vNuUxAqS8mIToT9q

Score

10^/10

metasploit backdoor discovery persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Metasploit family
metasploit

Executes dropped EXE 2 IoCs

pid	Process
2140	repsvc.exe
264	repsvc.exe

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Remote Registry Service = "repsvc.exe"	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2140 set thread context of 264	2140	repsvc.exe	36

UPX packed file 14 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2984-6-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/2984-8-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/2984-9-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/2984-10-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/2984-31-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-42-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-41-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-40-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-51-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-53-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-56-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-59-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-60-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/memory/264-65-0x0000000000400000-0x000000000045E000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\repsvc.exe	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe
File opened for modification	C:\Windows\repsvc.exe	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe

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 10 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	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	repsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	repsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe
2140	repsvc.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2848 wrote to memory of 2984	2848	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	30
PID 2984 wrote to memory of 2856	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	31
PID 2984 wrote to memory of 2856	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	31
PID 2984 wrote to memory of 2856	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	31
PID 2984 wrote to memory of 2856	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	31
PID 2984 wrote to memory of 2140	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	33
PID 2984 wrote to memory of 2140	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	33
PID 2984 wrote to memory of 2140	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	33
PID 2984 wrote to memory of 2140	2984	c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe	33
PID 2856 wrote to memory of 2764	2856	cmd.exe	34
PID 2856 wrote to memory of 2764	2856	cmd.exe	34
PID 2856 wrote to memory of 2764	2856	cmd.exe	34
PID 2856 wrote to memory of 2764	2856	cmd.exe	34
PID 2764 wrote to memory of 2468	2764	net.exe	35
PID 2764 wrote to memory of 2468	2764	net.exe	35
PID 2764 wrote to memory of 2468	2764	net.exe	35
PID 2764 wrote to memory of 2468	2764	net.exe	35
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 2140 wrote to memory of 264	2140	repsvc.exe	36
PID 264 wrote to memory of 376	264	repsvc.exe	37
PID 264 wrote to memory of 376	264	repsvc.exe	37
PID 264 wrote to memory of 376	264	repsvc.exe	37
PID 264 wrote to memory of 376	264	repsvc.exe	37
PID 376 wrote to memory of 2404	376	cmd.exe	39
PID 376 wrote to memory of 2404	376	cmd.exe	39
PID 376 wrote to memory of 2404	376	cmd.exe	39
PID 376 wrote to memory of 2404	376	cmd.exe	39
PID 2404 wrote to memory of 2596	2404	net.exe	40
PID 2404 wrote to memory of 2596	2404	net.exe	40
PID 2404 wrote to memory of 2596	2404	net.exe	40
PID 2404 wrote to memory of 2596	2404	net.exe	40

C:\Users\Admin\AppData\Local\Temp\c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c1b66518ca3bfc089466bb62da627951_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\x.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2856
  - - C:\Windows\SysWOW64\net.exe
      net stop "Security Center"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2764
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop "Security Center"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2468
- - C:\Windows\repsvc.exe
    "C:\Windows\repsvc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2140
  - - C:\Windows\repsvc.exe
      "C:\Windows\repsvc.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:264
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\x.bat" "
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:376
      - C:\Windows\SysWOW64\net.exe
        
        net stop "Security Center"
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2404
        
        C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop "Security Center"
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:2596

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:\Windows\repsvc.exe

Filesize
172KB

MD5
c1b66518ca3bfc089466bb62da627951

SHA1
18b4ecdb441299cda5f1423e185ebcdc31b7c4d5

SHA256
e0141eb37454ac2c0a9ed115d93b92f0d74f663471f7a2994fc5efd65cf6d2fe

SHA512
fe6ea6d049b2cb96b22f6128d7c12dc96ab1fc572b3135600c90a60b04abb7ab6e90bfcaeb2c8410b0ed195db790fd7fb8cd07445d5cfdf4f70b36f077ad6139

Download Submit
C:\x.bat

Filesize
53B

MD5
e6ed7be2b9572503f07663ca6e53759f

SHA1
7ad80bd38f2a27e06c111b551c76ad0a0585c194

SHA256
b1a6c027d18eb5766129a059f68201e6fb8c68d095f3932983009fe5ae2e4df9

SHA512
e0010782b4fe567290536743375112db3107f8390d4c5cbb97f1bf1a8c83825399e1fe2fe9793d351896bb704f3bdec583fa7241b853b136fa9440a927d94227

Download Submit
memory/264-40-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-65-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-60-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-59-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-56-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-53-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-51-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-42-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/264-41-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2984-9-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2984-31-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2984-10-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2984-2-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2984-8-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2984-6-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2984-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads