13e8616673a37715f239a90c459060f3388b577bef7e58f20f50295a0f9e703c

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 06:11

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General

Target

bdyxw.dll
Size

588KB
MD5

6c97ee37bfa9ca6e79902f4ef86d988e
SHA1

2f2d9a4428f009c3f30b1dc560ee03f8e5c2fc00
SHA256

5c058f4159120537469cb36a46c5b7256a1d8e6ed2cfc8f835227c18baa47108
SHA512

627e85b3f0772165bb6faf65e14f770ee0bcd5acefe9237fc4038726ae70484711bbf8a68fae0901ec4e59869acaf8b1bcd24e452b00cbb75c803e269e876fb3
SSDEEP

12288:u+CaLaXwkm43R7IuFiQJp3qTbDIXa0YeQhVTT1wTjVbC:SaIPmMFia1qTbKa5BwT1C

Score

7^/10

evasion themida

Malware Config

Signatures

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-1-5-21-3450744190-3404161390-554719085-1000\Software\Wine	rundll32.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral25/memory/1316-0-0x0000000010000000-0x0000000010150000-memory.dmp	themida
behavioral25/memory/1316-1-0x0000000010000000-0x0000000010150000-memory.dmp	themida
behavioral25/memory/1316-2-0x0000000010000000-0x0000000010150000-memory.dmp	themida
behavioral25/memory/1316-3-0x0000000010000000-0x0000000010150000-memory.dmp	themida

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 1316	2476	rundll32.exe	31
PID 2476 wrote to memory of 1316	2476	rundll32.exe	31
PID 2476 wrote to memory of 1316	2476	rundll32.exe	31
PID 2476 wrote to memory of 1316	2476	rundll32.exe	31
PID 2476 wrote to memory of 1316	2476	rundll32.exe	31
PID 2476 wrote to memory of 1316	2476	rundll32.exe	31
PID 2476 wrote to memory of 1316	2476	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdyxw.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bdyxw.dll,#1
  2⤵
  - Identifies Wine through registry keys
  PID:1316

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

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1316-0-0x0000000010000000-0x0000000010150000-memory.dmp

Filesize
1.3MB

Download
memory/1316-1-0x0000000010000000-0x0000000010150000-memory.dmp

Filesize
1.3MB

Download
memory/1316-2-0x0000000010000000-0x0000000010150000-memory.dmp

Filesize
1.3MB

Download
memory/1316-3-0x0000000010000000-0x0000000010150000-memory.dmp

Filesize
1.3MB

Download
memory/1316-4-0x0000000000050000-0x000000000005E000-memory.dmp

Filesize
56KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads