28f4304182db177d70ef77f49611b9f52c06776ed45854b8334ab32dcda3bd64

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
25-06-2024 12:14

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General

Target

0e074f9b0d3bae15495f8af864844df1_JaffaCakes118.dll
Size

33KB
MD5

0e074f9b0d3bae15495f8af864844df1
SHA1

a2be44652ace1363d0f6b691f80d0b5fe8ddc2f2
SHA256

28f4304182db177d70ef77f49611b9f52c06776ed45854b8334ab32dcda3bd64
SHA512

23e701e92c083a3d32544f90ba26b94e39761ed4b40b886300990228cc242a22fc3d15fe25f9ad01d36c1f0cb38648ac868895624e397fddbd084cdcce5a9816
SSDEEP

768:0zzfy7gPcUqSZ4Q6LTOe8ZZ7mVFqLJhANuRnxS3Cnon:0P2gPXevSJrLz3S/

Score

7^/10

persistence upx

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
628	rundll32.exe
628	rundll32.exe
1328	rundll32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/628-1-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/628-0-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/628-2-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/628-5-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/628-16-0x00000000031C0000-0x00000000031D4000-memory.dmp	upx
behavioral2/memory/1328-24-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1328-25-0x0000000010000000-0x0000000010014000-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\\byXOhFvU.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\byXOhFvU.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\byXOhFvU.dll	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6588B41B-D14A-4B61-BA0B-B6F70F054292}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6588B41B-D14A-4B61-BA0B-B6F70F054292}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6588B41B-D14A-4B61-BA0B-B6F70F054292}\InprocServer32\ = "C:\\Windows\\SysWow64\\byXOhFvU.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6588B41B-D14A-4B61-BA0B-B6F70F054292}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
628	rundll32.exe
628	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
628	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	628	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
628	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3808 wrote to memory of 628	3808	rundll32.exe	82
PID 3808 wrote to memory of 628	3808	rundll32.exe	82
PID 3808 wrote to memory of 628	3808	rundll32.exe	82
PID 628 wrote to memory of 612	628	rundll32.exe	5
PID 628 wrote to memory of 1328	628	rundll32.exe	95
PID 628 wrote to memory of 1328	628	rundll32.exe	95
PID 628 wrote to memory of 1328	628	rundll32.exe	95

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

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0e074f9b0d3bae15495f8af864844df1_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0e074f9b0d3bae15495f8af864844df1_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:628
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\byXOhFvU.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:1328

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:\Windows\SysWOW64\byXOhFvU.dll

Filesize
33KB

MD5
0e074f9b0d3bae15495f8af864844df1

SHA1
a2be44652ace1363d0f6b691f80d0b5fe8ddc2f2

SHA256
28f4304182db177d70ef77f49611b9f52c06776ed45854b8334ab32dcda3bd64

SHA512
23e701e92c083a3d32544f90ba26b94e39761ed4b40b886300990228cc242a22fc3d15fe25f9ad01d36c1f0cb38648ac868895624e397fddbd084cdcce5a9816

Download Submit
memory/628-1-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/628-0-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/628-3-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/628-2-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/628-4-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/628-5-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/628-12-0x00000000031C0000-0x00000000031D4000-memory.dmp

Filesize
80KB

Download
memory/628-16-0x00000000031C0000-0x00000000031D4000-memory.dmp

Filesize
80KB

Download
memory/1328-21-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1328-24-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1328-25-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download