d0f9ad4ef39bb2972ee00b6b7ba9dd94d192b3b2cbfc26cc89d0e9e562ae666c

General

Target

ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe
Size

985KB
MD5

ffdf7f7dbeecbeb16757be9807b80987
SHA1

24a0bead7b9376fcf7293d7d5df60a7a0f27db2a
SHA256

d0f9ad4ef39bb2972ee00b6b7ba9dd94d192b3b2cbfc26cc89d0e9e562ae666c
SHA512

5137e3754ee37a251270fbe89a2e66192e1a9ef40435a473c11ca473dacea8a46de314ce0640313cfe9e687d64343442186afb842a55231efe71dd098a669953
SSDEEP

12288:NieDHBRs0GXQCxeW5xH5lWGutCjHvascYCUbigdmAN8MxkBGKWrU43xY/e/y4P+g:jgpeW/VrJiZWYigAZJ0rY

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3176	winupdate.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\melt.bat	vbc.exe
File created	C:\Windows\SysWOW64\winupdate.exe	vbc.exe
File opened for modification	C:\Windows\SysWOW64\winupdate.exe	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3940 set thread context of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83

System Location Discovery: System Language Discovery 1 TTPs 4 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	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 2512	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	82
PID 3940 wrote to memory of 2512	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	82
PID 3940 wrote to memory of 2512	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	82
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3940 wrote to memory of 3184	3940	ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe	83
PID 3184 wrote to memory of 3176	3184	vbc.exe	84
PID 3184 wrote to memory of 3176	3184	vbc.exe	84
PID 3184 wrote to memory of 3176	3184	vbc.exe	84
PID 3184 wrote to memory of 2532	3184	vbc.exe	86
PID 3184 wrote to memory of 2532	3184	vbc.exe	86
PID 3184 wrote to memory of 2532	3184	vbc.exe	86

C:\Users\Admin\AppData\Local\Temp\ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffdf7f7dbeecbeb16757be9807b80987_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  PID:2512
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3184
- - C:\Windows\SysWOW64\winupdate.exe
    "C:\Windows\System32\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3176
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Windows\System32\melt.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

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:\Windows\SysWOW64\melt.bat

Filesize
97B

MD5
5b722b22b19fbf4eb90e8c068ecbb379

SHA1
39d644cad70f6398f39ebda54bce6f3b49fc685b

SHA256
5f1546795b73db8c1877af7256f5a3735b001333a16428188716fbb89f6c15d1

SHA512
ba8915515fc2d17fb3ad91ce360866c3040fa61cd467c6df7b54b0debb5629d187782347aa96edaed584039f060387a1cb1151f5100ffdd8a9db8ae715348cd1

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

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/3184-3-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3184-4-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3184-6-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3184-21-0x0000000000470000-0x0000000000539000-memory.dmp

Filesize
804KB

Download
memory/3184-22-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3940-0-0x0000000074952000-0x0000000074953000-memory.dmp

Filesize
4KB

Download
memory/3940-1-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/3940-2-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/3940-7-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing