fb8ca0afdc3c4cd3e7db80da9ffb3799f00b358bf82700c2756f22a659917ae2

Analysis

max time kernel
140s
max time network
117s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
12/07/2024, 01:28

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General

Target

3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe
Size

6.0MB
MD5

3b7f16e17fc624d9bfd9194cf2666730
SHA1

d1ee26c306906982059d7298e791c0d358c7ded9
SHA256

fb8ca0afdc3c4cd3e7db80da9ffb3799f00b358bf82700c2756f22a659917ae2
SHA512

2b6feec422ca2e8bf004975414ee3b374fbdf84e8c7343e3921785e6b75c89682b3da7d9c160b316ca9c4ae9d981a860a161c498fb99872fe6e8a776ad87c124
SSDEEP

98304:8wZcFwv3U9ApP+AJGqYuiUWIYFEU/4zg0Oa3mrJYp+An7dV:8wZcFw/NWAJGqVJYKU/4z5OaeWo87

Score

9^/10

bootkit evasion persistence trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Wine	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe

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	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2732	2388	WerFault.exe	29

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2732	2388	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe	30
PID 2388 wrote to memory of 2732	2388	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe	30
PID 2388 wrote to memory of 2732	2388	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe	30
PID 2388 wrote to memory of 2732	2388	3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3b7f16e17fc624d9bfd9194cf2666730_JaffaCakes118.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 748
  2⤵
  - Program crash
  PID:2732

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

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2388-0-0x0000000000010000-0x0000000000620000-memory.dmp

Filesize
6.1MB

Download
memory/2388-2-0x0000000000010000-0x0000000000620000-memory.dmp

Filesize
6.1MB

Download
memory/2388-3-0x0000000000010000-0x0000000000620000-memory.dmp

Filesize
6.1MB

Download
memory/2388-6-0x0000000000010000-0x0000000000620000-memory.dmp

Filesize
6.1MB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads