c74faafbe3cf2ef3647d8d4061226583d6320bc400606d78f4cf7fcd9bcc6a8c

General

Target

756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe
Size

10KB
MD5

756d47132e9f78d71951af8d44941b03
SHA1

91bf85e7f8d82503610c1fd4d51a03d0744cc585
SHA256

c74faafbe3cf2ef3647d8d4061226583d6320bc400606d78f4cf7fcd9bcc6a8c
SHA512

f891ec2d356a601ef385adba75726fcf92a2fe596fb108f5f06b2405d6b1a9d52ddf86f7e9c47a7b88e2462cb3ab8716a1b2ea796fb362737310950d51735ebf
SSDEEP

192:B4XuJaaKhJAUqeHAZiJW57IdHIGQwTDgyZDNY0qiRNbu7+:0S09gZiWllID2uVy+

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
3000	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2524	comremok.exe

Loads dropped DLL 2 IoCs

pid	Process
2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe
2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2320-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2524-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x00080000000193e6-9.dat	upx
behavioral1/memory/2320-21-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2524-27-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\comremo.dll	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\comremok.exe	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\comremok.exe	756d47132e9f78d71951af8d44941b03_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	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2524	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	30
PID 2320 wrote to memory of 2524	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	30
PID 2320 wrote to memory of 2524	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	30
PID 2320 wrote to memory of 2524	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	30
PID 2320 wrote to memory of 3000	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	31
PID 2320 wrote to memory of 3000	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	31
PID 2320 wrote to memory of 3000	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	31
PID 2320 wrote to memory of 3000	2320	756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\756d47132e9f78d71951af8d44941b03_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:2320
- C:\Windows\SysWOW64\comremok.exe
  C:\Windows\system32\comremok.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2524
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3000

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\756d47132e9f78d71951af8d44941b03_JaffaCakes118.exe.bat

Filesize
210B

MD5
8012df9678b306569d9398c0f2be4a85

SHA1
67c6b3d538dd213fc37c077bc1e808d799cee88e

SHA256
9f111dce85f92f47f7efbd0ef40568ecf7223ecbff01ac3c75b30002170a7f90

SHA512
bf7bdf96428e9a0702210bcfb6997f5758da91a2e09fff30cdcbc46119fcddd6851eaa5339a2fb3138546e6763480a5ab7471950f43bd95a9ce3a49cf209cc85

Download Submit
C:\Windows\SysWOW64\comremok.exe

Filesize
10KB

MD5
756d47132e9f78d71951af8d44941b03

SHA1
91bf85e7f8d82503610c1fd4d51a03d0744cc585

SHA256
c74faafbe3cf2ef3647d8d4061226583d6320bc400606d78f4cf7fcd9bcc6a8c

SHA512
f891ec2d356a601ef385adba75726fcf92a2fe596fb108f5f06b2405d6b1a9d52ddf86f7e9c47a7b88e2462cb3ab8716a1b2ea796fb362737310950d51735ebf

Download Submit
memory/2320-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2320-11-0x0000000000030000-0x000000000003F000-memory.dmp

Filesize
60KB

Download
memory/2320-10-0x0000000000030000-0x000000000003F000-memory.dmp

Filesize
60KB

Download
memory/2320-21-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2524-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2524-27-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing