buer | f4f02f78b8d89ed5063773985d4ad7b4c9205417b34787fb945f739134a85a8b

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 09:44

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General

Target

e23246d5a16fd344dfd2fc7177d43890_JaffaCakes118.dll
Size

3.2MB
MD5

e23246d5a16fd344dfd2fc7177d43890
SHA1

9d0ee3d8896911c2743ff89c72c30639f0851f52
SHA256

f4f02f78b8d89ed5063773985d4ad7b4c9205417b34787fb945f739134a85a8b
SHA512

01d4b4c0c60272759906f3c2d255a0378c9b4c081878866c9beef187a8c58b53d7da50109541f2da3051035e72b7a60b54710d6e3cddd01a28eb1009bc6af1ed
SSDEEP

49152:GYRxMUVRngWxp5Czu06spJDJXv2Suyic6346LE3Vtj2RwA+M:GuS0RnNYss5XvMy0346g3emA

Score

10^/10

buer discovery loader vmprotect

Malware Config

Extracted

Family

buer

complexofferstobakn.com

Signatures

Buer
Buer is a new modular loader first seen in August 2019.
loader buer

Buer Loader 1 IoCs

Detects Buer loader in memory or disk.

loader

resource	yara_rule
behavioral2/memory/4776-1-0x00000000745A0000-0x0000000074A5F000-memory.dmp	buer

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/4776-1-0x00000000745A0000-0x0000000074A5F000-memory.dmp	vmprotect

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 4776	3976	regsvr32.exe	85
PID 3976 wrote to memory of 4776	3976	regsvr32.exe	85
PID 3976 wrote to memory of 4776	3976	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e23246d5a16fd344dfd2fc7177d43890_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e23246d5a16fd344dfd2fc7177d43890_JaffaCakes118.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4776-1-0x00000000745A0000-0x0000000074A5F000-memory.dmp

Filesize
4.7MB

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