0155e34c5ad2f5661c5ebc2c6351ac2afe95246bf659e8cd0b0e1a7bffabc5de

Analysis

max time kernel
97s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2024 12:33

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General

Target

bslib/bslib.dll
Size

1.7MB
MD5

9e3686b052f71477355f2e9793b4d837
SHA1

e553b4803d3a8f84f20e464dfc9c3c8b4a86371f
SHA256

4724d271bc497d4050e8064bb2bbcd1bccb99e8d347e190ecfdf28c68566eb01
SHA512

1e71a1757f40387ca8e1d8510f70c5843419fcada78a0bb496db453590b727a272c107355c9550bee636a7dc17b991ec9eec6b3ff012d29e6444c6c00e1157ec
SSDEEP

49152:0EY6B7omRtdVUNB4PNEz0Qw1IQvEJORXsHkAUFdy:ZRB7X7UNOPez0J1IQvEoCh

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral30/memory/1768-0-0x0000000002E00000-0x0000000003678000-memory.dmp	upx

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	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1768	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 1768	2308	rundll32.exe	82
PID 2308 wrote to memory of 1768	2308	rundll32.exe	82
PID 2308 wrote to memory of 1768	2308	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bslib\bslib.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bslib\bslib.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1768

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/1768-0-0x0000000002E00000-0x0000000003678000-memory.dmp

Filesize
8.5MB

Download
memory/1768-1-0x00000000036C0000-0x00000000036C1000-memory.dmp

Filesize
4KB

Download
memory/1768-2-0x0000000002E00000-0x0000000003678000-memory.dmp

Filesize
8.5MB

Download
memory/1768-3-0x0000000002E00000-0x0000000003678000-memory.dmp

Filesize
8.5MB

Download