fed518ba945b74371343034f55e793bc7755f3e8915183cb576d632222539423

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
12/07/2024, 23:16

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General

Target

3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe
Size

10KB
MD5

3f42e1b99cacb148cb69eac9d0dc5138
SHA1

777c6974d7c837a4a5f669d8d04ad20a0dd0e2e4
SHA256

fed518ba945b74371343034f55e793bc7755f3e8915183cb576d632222539423
SHA512

6f7ca93ab13a4434546c697814b7d812acef323afc73f1f6881e5bbd9879e8074d4fa4ff01249d95a4e5761322238669c5a82c077d6545b47d02a6cdde73dd37
SSDEEP

192:Ryw1qv+F7pQtH5dWVJLD9popPzvKx1jRN6TDzi/6DGLdtYNscLbf+OHTTFZ:IwWg7pQtHDYLD0p2n+DO/I6YNXbjzr

Score

8^/10

persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Deletes itself 1 IoCs

pid	Process
2960	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2348	comboausk.exe

Loads dropped DLL 2 IoCs

pid	Process
1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe
1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1872-1-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0009000000016591-3.dat	upx
behavioral1/memory/1872-6-0x0000000000030000-0x000000000003E000-memory.dmp	upx
behavioral1/memory/2348-11-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/memory/1872-20-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\comboaus.dll	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\comboausk.exe	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\comboausk.exe	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2348	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	31
PID 1872 wrote to memory of 2348	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	31
PID 1872 wrote to memory of 2348	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	31
PID 1872 wrote to memory of 2348	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	31
PID 1872 wrote to memory of 2960	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	32
PID 1872 wrote to memory of 2960	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	32
PID 1872 wrote to memory of 2960	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	32
PID 1872 wrote to memory of 2960	1872	3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Windows\SysWOW64\comboausk.exe
  C:\Windows\system32\comboausk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2348
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  PID:2960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3f42e1b99cacb148cb69eac9d0dc5138_JaffaCakes118.exe.bat

Filesize
210B

MD5
d6233c040e0b3f1e09ad1362fdcbd94d

SHA1
d22ffc8efa2314133c19a36cae90664fda7300e7

SHA256
c92570243a1a1e273212fc5a6c51be12912df551370a01a07ee5cd0c470e1fbe

SHA512
8f8c6419e385b4654812859ab48d904b5a3fd195cfbcf5630de57ec0e21c0137f1b488a33ab80253a8a3615da3d59f44bf506d09c1f42c05513fb5280e459406

Download Submit
\Windows\SysWOW64\comboausk.exe

Filesize
10KB

MD5
3f42e1b99cacb148cb69eac9d0dc5138

SHA1
777c6974d7c837a4a5f669d8d04ad20a0dd0e2e4

SHA256
fed518ba945b74371343034f55e793bc7755f3e8915183cb576d632222539423

SHA512
6f7ca93ab13a4434546c697814b7d812acef323afc73f1f6881e5bbd9879e8074d4fa4ff01249d95a4e5761322238669c5a82c077d6545b47d02a6cdde73dd37

Download Submit
memory/1872-1-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1872-6-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/1872-20-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2348-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download