f9545f88786c9a654312ea9fb4f77d82a0cee1fc5df10b1c992a199ed9c7041b

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 09:45

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General

Target

6712288091d419b24655512a27d83cad_JaffaCakes118.exe
Size

54KB
MD5

6712288091d419b24655512a27d83cad
SHA1

720892edd547bfe84d4fe54f43f3a61d03bcaaf9
SHA256

f9545f88786c9a654312ea9fb4f77d82a0cee1fc5df10b1c992a199ed9c7041b
SHA512

6577047b7dd582e7e2c9fb8ab484e87e2028243f78849b59967bd8d90a7436f377e054a9c5d82b57bfc1fc27cea07680f1d190fe846dff1487fb91e93d10e01d
SSDEEP

1536:g4Qj3hysJHQFeYpoOBNK55x2v1PQapp9OujJGP:gLDHeZ055Mtpp9OSJs

Score

7^/10

persistence upx

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe
4108	rundll32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2176-2-0x0000000000400000-0x0000000000410629-memory.dmp	upx
behavioral2/memory/2176-1-0x0000000000400000-0x0000000000410629-memory.dmp	upx
behavioral2/memory/2176-5-0x0000000000400000-0x0000000000410629-memory.dmp	upx
behavioral2/memory/2176-12-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2176-11-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2176-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/2176-19-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4108-29-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4108-33-0x0000000010000000-0x0000000010014000-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\\tuvVPjgH.dll,#1"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\tuvVPjgH.dll	6712288091d419b24655512a27d83cad_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\tuvVPjgH.dll	6712288091d419b24655512a27d83cad_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\pmnkJcyx.dll	6712288091d419b24655512a27d83cad_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\pmnkJcyx.dll	6712288091d419b24655512a27d83cad_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}\InprocServer32\ = "C:\\Windows\\SysWow64\\tuvVPjgH.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{24DAAFB8-B7F5-463F-88C1-D497611FC253}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe
2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe
4108	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 620	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe	5
PID 2176 wrote to memory of 4108	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe	95
PID 2176 wrote to memory of 4108	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe	95
PID 2176 wrote to memory of 4108	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe	95
PID 2176 wrote to memory of 2788	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe	96
PID 2176 wrote to memory of 2788	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe	96
PID 2176 wrote to memory of 2788	2176	6712288091d419b24655512a27d83cad_JaffaCakes118.exe	96

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:620

C:\Users\Admin\AppData\Local\Temp\6712288091d419b24655512a27d83cad_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6712288091d419b24655512a27d83cad_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:2176
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\tuvVPjgH.dll,a
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:4108
- 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\6712288091d419b24655512a27d83cad_JaffaCakes118.exe"
  2⤵
  PID:2788

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

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Downloads

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

Filesize
43B

MD5
9a7ef09167a6f4433681b94351509043

SHA1
259b1375ed8e84943ca1d42646bb416325c89e12

SHA256
d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

SHA512
96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

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

Filesize
35KB

MD5
845fedcd7cfb8d1241e9d54cea445577

SHA1
57e92ecaa426f4749a438336c52d19442c418561

SHA256
1b8a7ff25b77a51da88e223ceb590e872a7404f55160d253729a6a9661b6b521

SHA512
bd63f5a21d183505140394a10dd6ab433400752d31464921b0097440c2b031e3f402dd84c7759856e0e9f9264a80a38ce1e048ffcc23d18cac55fa246a01a279

Download Submit
memory/2176-5-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/2176-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2176-0-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/2176-4-0x0000000000407000-0x0000000000410000-memory.dmp

Filesize
36KB

Download
memory/2176-12-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2176-11-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2176-1-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/2176-3-0x00000000006C0000-0x00000000006CC000-memory.dmp

Filesize
48KB

Download
memory/2176-19-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/2176-2-0x0000000000400000-0x0000000000410629-memory.dmp

Filesize
65KB

Download
memory/4108-30-0x0000000000D30000-0x0000000000D31000-memory.dmp

Filesize
4KB

Download
memory/4108-29-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4108-31-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/4108-33-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4108-35-0x0000000000D30000-0x0000000000D31000-memory.dmp

Filesize
4KB

Download