893595dc6a4871753210511606d2881a26bb40a5cd70ec4f0c65630c233e6eb5

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2024, 14:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
Size

50KB
MD5

30d866711c402b6a635213239a6ee299
SHA1

e5102fe0a20b9b63e309da3d748b032b97ef6074
SHA256

893595dc6a4871753210511606d2881a26bb40a5cd70ec4f0c65630c233e6eb5
SHA512

f0c284a7b12f446d0eac9d5403c929f63c28567ac3197b6de7e6b13df1da82511c7eb34396c81e3cf9caf0836ee940fc92daceca17c4200f9d7aa35d57fc7d7b
SSDEEP

768:fvsEUoVH8RqYkgdrh1uON43V7oLQgbqwtzU3XH8Oci4nJGnReRAT2L6/zDbWxIF1:s2t8Rq6phXbcgbqOzxvngnReaiOziI3

Score

7^/10

persistence upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
2728	rundll32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1316-3-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/1316-2-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/1316-5-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/1316-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1316-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1316-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1316-19-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2728-29-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2728-33-0x0000000010000000-0x0000000010014000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 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\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\wvUkHYqn.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wvUkHYqn.dll	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\nnnnLeCs.dll	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\nnnnLeCs.dll	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wvUkHYqn.dll	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{299B5FAC-2168-4A5D-A67D-AA4C8F8055DA}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{299B5FAC-2168-4A5D-A67D-AA4C8F8055DA}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{299B5FAC-2168-4A5D-A67D-AA4C8F8055DA}\InprocServer32\ = "C:\\Windows\\SysWow64\\wvUkHYqn.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{299B5FAC-2168-4A5D-A67D-AA4C8F8055DA}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe
2728	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1316 wrote to memory of 612	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe	5
PID 1316 wrote to memory of 2728	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe	87
PID 1316 wrote to memory of 2728	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe	87
PID 1316 wrote to memory of 2728	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe	87
PID 1316 wrote to memory of 932	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe	88
PID 1316 wrote to memory of 932	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe	88
PID 1316 wrote to memory of 932	1316	30d866711c402b6a635213239a6ee299_JaffaCakes118.exe	88

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Users\Admin\AppData\Local\Temp\30d866711c402b6a635213239a6ee299_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\30d866711c402b6a635213239a6ee299_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\wvUkHYqn.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:2728
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\removalfile.bat "C:\Users\Admin\AppData\Local\Temp\30d866711c402b6a635213239a6ee299_JaffaCakes118.exe"
  2⤵
  PID:932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
43B

MD5
9a7ef09167a6f4433681b94351509043

SHA1
259b1375ed8e84943ca1d42646bb416325c89e12

SHA256
d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

SHA512
96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

Download Submit
C:\Windows\SysWOW64\nnnnLeCs.dll

Filesize
33KB

MD5
65a6bc84fccd148329869bd9380b97dc

SHA1
1b07cbfcd17b1c1fda84b06f4c352a350bcf582e

SHA256
770ffa9abb7f1ac8118984c550c8dd056e35e6a3727df47b3d3ed8b7f120f7dd

SHA512
8113d7b50b9e9ff9a96cf499d5071b19369b2c74e91ca64976f1ce61591d0171186207abac936675c5f1c1c9c4ff0fa7190040e4c1f0db0831d561e8076aa3cb

Download Submit
memory/1316-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1316-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1316-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1316-4-0x0000000000408000-0x0000000000411000-memory.dmp

Filesize
36KB

Download
memory/1316-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1316-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1316-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1316-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1316-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1316-1-0x0000000002160000-0x000000000216B000-memory.dmp

Filesize
44KB

Download
memory/2728-30-0x00000000012B0000-0x00000000012B6000-memory.dmp

Filesize
24KB

Download
memory/2728-29-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2728-31-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/2728-33-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2728-35-0x00000000012B0000-0x00000000012B6000-memory.dmp

Filesize
24KB

Download