399a66a264facc46f2a703c9de786fcff6707f1fa4ca383b9a35b3fdd073cb7e

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/10/2024, 12:13

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General

Target

msvcm90.dll
Size

219KB
MD5

4a8bc195abdc93f0db5dab7f5093c52f
SHA1

b55a206fc91ecc3adeda65d286522aa69f04ac88
SHA256

b371af3ce6cb5d0b411919a188d5274df74d5ee49f6dd7b1ccb5a31466121a18
SHA512

197c12825efa2747afd10fafe3e198c1156ed20d75bad07984caa83447d0c7d498ef67cee11004232ca5d4dbbb9ae9d43bfd073002d3d0d8385476876ef48a94
SSDEEP

6144:ge7iXDX5qmzXOZc/cU4HqsKvts6tifkglMqbO0YLJbc89XTiuq5Kz3OaOyp:ge7iXVDzXOGJb5XTiuq5Kz+

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral25/memory/1284-0-0x0000000074C90000-0x0000000074D41000-memory.dmp	upx
behavioral25/memory/1284-1-0x0000000074C90000-0x0000000074D41000-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 WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 1284	2012	rundll32.exe	30
PID 2012 wrote to memory of 1284	2012	rundll32.exe	30
PID 2012 wrote to memory of 1284	2012	rundll32.exe	30
PID 2012 wrote to memory of 1284	2012	rundll32.exe	30
PID 2012 wrote to memory of 1284	2012	rundll32.exe	30
PID 2012 wrote to memory of 1284	2012	rundll32.exe	30
PID 2012 wrote to memory of 1284	2012	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcm90.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcm90.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1284

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/1284-0-0x0000000074C90000-0x0000000074D41000-memory.dmp

Filesize
708KB

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memory/1284-1-0x0000000074C90000-0x0000000074D41000-memory.dmp

Filesize
708KB

Download