399a66a264facc46f2a703c9de786fcff6707f1fa4ca383b9a35b3fdd073cb7e

Analysis

max time kernel
120s
max time network
125s
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

msvcr90.dll
Size

247KB
MD5

ebdba73d639dc4ebedff5070d4f589a4
SHA1

a6325d7cf7b7d0eb0bdf045dbe57acfe109fd907
SHA256

f32aff9a98b505a25924c1a220cad71a6c1542fc1ccb5292b3742a7cf5c96d3c
SHA512

e081e72cef8323146bf6973dd760e85053e1ab9544033340dc482ec537f96835e6f1a20dfe00c87d7e9c6bdd5ce6ef3090e2730996a545b831089903c00b4d30
SSDEEP

6144:kvYKZjJvO7epdalu6x4sCAGDjQI6LoS5uZdGJCJLuEyKIqqOmiqsEqmQI0wye/30:kAWjJ27e0u6zfGDEoScmHyy3RzS

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
behavioral29/memory/2284-1-0x0000000074E60000-0x0000000074F11000-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 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28
PID 2204 wrote to memory of 2284	2204	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr90.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr90.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2284

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/2284-0-0x0000000074F20000-0x0000000074FD1000-memory.dmp

Filesize
708KB

Download
memory/2284-1-0x0000000074E60000-0x0000000074F11000-memory.dmp

Filesize
708KB

Download
memory/2284-2-0x0000000074F20000-0x0000000074FD1000-memory.dmp

Filesize
708KB

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