39164ad2ffb29451ba6e3f97206a46fddf942876fa8085f326d1daabd7f67e12

General

Target

baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe
Size

11KB
MD5

baf9c0a056f7ffa4af2e6f473b6e86a1
SHA1

b9877d5c7cc4261b4542e7c00d0caa92ff37c618
SHA256

39164ad2ffb29451ba6e3f97206a46fddf942876fa8085f326d1daabd7f67e12
SHA512

d1be7026785efdcdc764a49b751ef5ab3f3c1ffcc0efbb4d1b119d4f5d88e044fded808af24221703c54e1bbe49c7437d5d4e4480474f1f83e57bbd086e30c60
SSDEEP

192:RyFqv0hZ9juHQJ41DIBFLe/DKuXqT/WCBc8DCz4rUocRhrZeIyASN4cKBUOwzc+:Ics5/J41DkleGukWCBc8DdrKroeGOwA+

Score

8^/10

discovery 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
2768	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	comboausk.exe

Loads dropped DLL 2 IoCs

pid	Process
2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe
2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x00360000000160e7-3.dat	upx
behavioral1/memory/2964-18-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2640-20-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\comboaus.dll	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\comboausk.exe	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\comboausk.exe	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2640	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2640	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2640	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2640	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2768	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	31
PID 2964 wrote to memory of 2768	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	31
PID 2964 wrote to memory of 2768	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	31
PID 2964 wrote to memory of 2768	2964	baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SysWOW64\comboausk.exe
  C:\Windows\system32\comboausk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2640
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\baf9c0a056f7ffa4af2e6f473b6e86a1_JaffaCakes118.exe.bat

Filesize
210B

MD5
80d1279c415507489ef705c7565463b1

SHA1
f4da326529eefcdba7b4ea46a0c376bdc3f5a6bd

SHA256
b7c8ea03fcbf8e75cd15280b126cc8bfa1008c9e3f3609fcb355d9e8f44fce6a

SHA512
faa5867a5d980f623e98b5fb89a4002ea0a25201dbe77071253465d2d5e851f266f1e9bb0011e80dec1e3449477b95db543ca33f6caf009b7631c7393c57a7cb

Download Submit
\Windows\SysWOW64\comboausk.exe

Filesize
11KB

MD5
baf9c0a056f7ffa4af2e6f473b6e86a1

SHA1
b9877d5c7cc4261b4542e7c00d0caa92ff37c618

SHA256
39164ad2ffb29451ba6e3f97206a46fddf942876fa8085f326d1daabd7f67e12

SHA512
d1be7026785efdcdc764a49b751ef5ab3f3c1ffcc0efbb4d1b119d4f5d88e044fded808af24221703c54e1bbe49c7437d5d4e4480474f1f83e57bbd086e30c60

Download Submit
memory/2640-20-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2964-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2964-18-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

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