21b1fb0083fa04798d4cd05c364cc93aa5ac9acad4a96b21a616bd37440bcc13

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
20-07-2024 04:09

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General

Target

5ef9abd1d41ff3267cc2056853c0e68d_JaffaCakes118.dll
Size

343KB
MD5

5ef9abd1d41ff3267cc2056853c0e68d
SHA1

5311045a93e5f6d0c9784c576630e577f6458a44
SHA256

21b1fb0083fa04798d4cd05c364cc93aa5ac9acad4a96b21a616bd37440bcc13
SHA512

0075882fc7e1d3c6feccd893e6e55687bf4370ed4bf80f05c111b13518c6c740be0401d61d3c6b63f3318a5bdfe3162da65c5fb988771b4d46061739a2f171b4
SSDEEP

6144:glbT0MaphPdAYXYwR4QDN5gtN8HumeGKmcz55FBrOK6VGpZJHA/zpA:gbpS1ewu0D3eGKv/Br+sZ8

Score

7^/10

bootkit persistence vmprotect

Malware Config

Signatures

VMProtect packed file 4 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/1976-4-0x0000000074B70000-0x0000000074C4E000-memory.dmp	vmprotect
behavioral1/memory/1976-3-0x0000000074B70000-0x0000000074C4E000-memory.dmp	vmprotect
behavioral1/memory/1976-1-0x0000000074B70000-0x0000000074C4E000-memory.dmp	vmprotect
behavioral1/memory/1976-9-0x0000000074B70000-0x0000000074C4E000-memory.dmp	vmprotect

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1976	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 1976	3040	rundll32.exe	30
PID 3040 wrote to memory of 1976	3040	rundll32.exe	30
PID 3040 wrote to memory of 1976	3040	rundll32.exe	30
PID 3040 wrote to memory of 1976	3040	rundll32.exe	30
PID 3040 wrote to memory of 1976	3040	rundll32.exe	30
PID 3040 wrote to memory of 1976	3040	rundll32.exe	30
PID 3040 wrote to memory of 1976	3040	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5ef9abd1d41ff3267cc2056853c0e68d_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5ef9abd1d41ff3267cc2056853c0e68d_JaffaCakes118.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:1976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1976-2-0x0000000074E00000-0x0000000074EDE000-memory.dmp

Filesize
888KB

Download
memory/1976-4-0x0000000074B70000-0x0000000074C4E000-memory.dmp

Filesize
888KB

Download
memory/1976-3-0x0000000074B70000-0x0000000074C4E000-memory.dmp

Filesize
888KB

Download
memory/1976-1-0x0000000074B70000-0x0000000074C4E000-memory.dmp

Filesize
888KB

Download
memory/1976-0-0x0000000074E00000-0x0000000074EDE000-memory.dmp

Filesize
888KB

Download
memory/1976-9-0x0000000074B70000-0x0000000074C4E000-memory.dmp

Filesize
888KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads