b4e05457f9bc289d5a1346e59cbc53dc73d4f9baa55a8f61ab3b3ce4e2909d01

Analysis

max time kernel
13s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
06/07/2024, 05:44

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General

Target

277018a50658bab47f6015c96061b2d1_JaffaCakes118.dll
Size

756KB
MD5

277018a50658bab47f6015c96061b2d1
SHA1

bfe7bfa99d9c3df215741b80f7851a66a06444b9
SHA256

b4e05457f9bc289d5a1346e59cbc53dc73d4f9baa55a8f61ab3b3ce4e2909d01
SHA512

4f228cb869fb869c4ab61f952153ddea40bfd68c983ea05a7248bbc227ef487bee16aa7846e81f2e344267dd7bca8067c85bf00199d88649891b910f9e07f2cb
SSDEEP

12288:itryCOfDjK9EmWHj1vRlHxINyaiBjXUrD+n3c0sUBuA5oTxEoWp8sJw/Q:i1yC4DtmuvIQamjkrnPeuYoTV1sJw/Q

Score

8^/10

evasion themida

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\system32\drivers\etc\hosts	rundll32.exe

Checks BIOS information in registry 2 TTPs 1 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	rundll32.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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Wine	rundll32.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2152-1-0x0000000074530000-0x00000000746D1000-memory.dmp	themida
behavioral1/memory/2152-2-0x0000000074530000-0x00000000746D1000-memory.dmp	themida
behavioral1/memory/2152-4-0x0000000074530000-0x00000000746D1000-memory.dmp	themida
behavioral1/memory/2152-6-0x0000000074530000-0x00000000746D1000-memory.dmp	themida

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2152	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2152	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2152	2468	rundll32.exe	29
PID 2468 wrote to memory of 2152	2468	rundll32.exe	29
PID 2468 wrote to memory of 2152	2468	rundll32.exe	29
PID 2468 wrote to memory of 2152	2468	rundll32.exe	29
PID 2468 wrote to memory of 2152	2468	rundll32.exe	29
PID 2468 wrote to memory of 2152	2468	rundll32.exe	29
PID 2468 wrote to memory of 2152	2468	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\277018a50658bab47f6015c96061b2d1_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\277018a50658bab47f6015c96061b2d1_JaffaCakes118.dll,#1
  2⤵
  - Drops file in Drivers directory
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:2152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

memory/2152-0-0x00000000746E0000-0x0000000074881000-memory.dmp

Filesize
1.6MB

Download
memory/2152-1-0x0000000074530000-0x00000000746D1000-memory.dmp

Filesize
1.6MB

Download
memory/2152-2-0x0000000074530000-0x00000000746D1000-memory.dmp

Filesize
1.6MB

Download
memory/2152-3-0x0000000074531000-0x0000000074543000-memory.dmp

Filesize
72KB

Download
memory/2152-4-0x0000000074530000-0x00000000746D1000-memory.dmp

Filesize
1.6MB

Download
memory/2152-6-0x0000000074530000-0x00000000746D1000-memory.dmp

Filesize
1.6MB

Download
memory/2152-7-0x00000000746E0000-0x000000007471C000-memory.dmp

Filesize
240KB

Download
memory/2152-5-0x0000000000450000-0x000000000045E000-memory.dmp

Filesize
56KB

Download