4258a0be37aaf67452610fd08bbdb37da3614dd9a50c97971691b0b27cdf3b84

Resubmissions

17/10/2024, 16:58

241017-vgyaxayerm 7

17/10/2024, 16:57

241017-vgdlhavhpe 7

17/10/2024, 16:55

241017-vflwgsyelp 7

Analysis

max time kernel
15s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/10/2024, 16:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

zlib0.dll
Size

2.3MB
MD5

72eefa46f7da32d50e5e53c8ea1e4bc0
SHA1

fc0ed150cdb8c3b6154077b1e4aa1ef5a1e16063
SHA256

4258a0be37aaf67452610fd08bbdb37da3614dd9a50c97971691b0b27cdf3b84
SHA512

5d57b6e39739e964df739a421ee9ae6a32df37f4b337a2c6794cbc4bdfb7d6c2a433acd80842765afc7111bca40a87b5040d7982dff93f3098c7e175e7ec8b64
SSDEEP

49152:aa5adrLLHlaYs4Lx9EJaokT6bIh12aLeM2UI5SHXsrM8sdMOnz:LKLHlasLIJaNuba0gPrH8rpir

Score

7^/10

Malware Config

Signatures

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\VideoBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2992	2816	rundll32.exe	31
PID 2816 wrote to memory of 2992	2816	rundll32.exe	31
PID 2816 wrote to memory of 2992	2816	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib0.dll,#1
1⤵
- Checks BIOS information in registry
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2816 -s 244
  2⤵
  PID:2992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2816-0-0x000007FEF6880000-0x000007FEF6DD4000-memory.dmp

Filesize
5.3MB

Download
memory/2816-1-0x000007FEF6320000-0x000007FEF6874000-memory.dmp

Filesize
5.3MB

Download
memory/2816-2-0x000007FEF6880000-0x000007FEF6DD4000-memory.dmp

Filesize
5.3MB

Download
memory/2816-3-0x000007FEF6320000-0x000007FEF6874000-memory.dmp

Filesize
5.3MB

Download
memory/2816-4-0x0000000077910000-0x0000000077912000-memory.dmp

Filesize
8KB

Download
memory/2816-5-0x000007FEF6880000-0x000007FEF6DD4000-memory.dmp

Filesize
5.3MB

Download
memory/2816-6-0x000007FEF6320000-0x000007FEF6874000-memory.dmp

Filesize
5.3MB

Download
memory/2816-7-0x000007FEF6880000-0x000007FEF6DD4000-memory.dmp

Filesize
5.3MB

Download
memory/2816-8-0x000007FEF6320000-0x000007FEF6874000-memory.dmp

Filesize
5.3MB

Download