c1b08110a9266287255a3d88abac9c354d0bed6d4b04a3c90bb15e8d03d95b67

General

Target

f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe
Size

15KB
MD5

f9e2534631ebb9a7eb85fd9134488afc
SHA1

3c43c5ff22b073ec7c8f03b9b4dc39ce4af3eddb
SHA256

c1b08110a9266287255a3d88abac9c354d0bed6d4b04a3c90bb15e8d03d95b67
SHA512

7186a4828c2f494cae482a1c8064057700a322303e9cdd61b6283a4593e01077ddf9f6197aa62e2efe3081a94a877fa830250ebc49d64e3fbfe9215947b64350
SSDEEP

384:Q+PLx9vesjJ9eRxI+q+hGVIfXen9Qpla0/VblgGP8:BPNcwQDqv4TTHFlFE

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2636	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2936	Win32Debug.exe

Loads dropped DLL 2 IoCs

pid	Process
2636	cmd.exe
2636	cmd.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1908-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/1908-10-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x000c000000012262-12.dat	upx
behavioral1/memory/2636-13-0x0000000000130000-0x000000000013F000-memory.dmp	upx
behavioral1/memory/2936-17-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2936-18-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 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\RunServices\Win32 Debug Manager = "C:\\Windows\\system32\\Win32Debug.exe"	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Win32 Debug Manager = "C:\\Windows\\system32\\Win32Debug.exe"	Win32Debug.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\Win32 Debug Manager = "C:\\Windows\\system32\\Win32Debug.exe"	Win32Debug.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Win32 Debug Manager = "C:\\Windows\\system32\\Win32Debug.exe"	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Win32Debug.exe	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\Win32Debug.exe	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Win32Debug.exe	Win32Debug.exe
File created	C:\Windows\SysWOW64\Win32Debug.exe	Win32Debug.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 2636	1908	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe	28
PID 1908 wrote to memory of 2636	1908	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe	28
PID 1908 wrote to memory of 2636	1908	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe	28
PID 1908 wrote to memory of 2636	1908	f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe	28
PID 2636 wrote to memory of 2936	2636	cmd.exe	30
PID 2636 wrote to memory of 2936	2636	cmd.exe	30
PID 2636 wrote to memory of 2936	2636	cmd.exe	30
PID 2636 wrote to memory of 2936	2636	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9e2534631ebb9a7eb85fd9134488afc_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\cmd.exe
  cmd /c rs.bat
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\Win32Debug.exe
    C:\Windows\system32\WIN32D~1.EXE
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in System32 directory
    PID:2936

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
172B

MD5
1df9c4b1f85368a67e273cb6689faab0

SHA1
6bdefb85d87bad7b26f2382f4b35d22ed62812d4

SHA256
3cb805da58017ddbc9038fd7b45599ce9baaa0571f53223ef535688f21d70175

SHA512
f48037a9ce0376525775e62e86fb828381674fa01dc559c5a6514eaf2f10ef36f05230167319666d32b88df8d8447e86ada34fcca76aa9795ea86806cf03318d

Download Submit
\Windows\SysWOW64\Win32Debug.exe

Filesize
15KB

MD5
f9e2534631ebb9a7eb85fd9134488afc

SHA1
3c43c5ff22b073ec7c8f03b9b4dc39ce4af3eddb

SHA256
c1b08110a9266287255a3d88abac9c354d0bed6d4b04a3c90bb15e8d03d95b67

SHA512
7186a4828c2f494cae482a1c8064057700a322303e9cdd61b6283a4593e01077ddf9f6197aa62e2efe3081a94a877fa830250ebc49d64e3fbfe9215947b64350

Download Submit
memory/1908-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1908-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2636-13-0x0000000000130000-0x000000000013F000-memory.dmp

Filesize
60KB

Download
memory/2936-17-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2936-18-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads