61a433daaaa4698cf96d4a78237d99556a3a7d22091f833f850f184b7bcea78a

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 23:03

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General

Target

$PLUGINSDIR/UserMgr_2.dll
Size

55KB
MD5

74813d238f84d5c0f5328bd7ba79537a
SHA1

5aeecd94f0902bad1572fd2cceada9ad44af6725
SHA256

54a9ab4ac127d950ad293a71f5a496af3ab09b70aa73839fd0f1c9cbaf35f70e
SHA512

ac7fb85c6375bc3e0e76b535550b604cbad31e69696030314f34e41d3bb5c04411ec826c89885c30556649961d45061f501db6a37a23bb419e4f1e7cea34deff
SSDEEP

768:WThBSJtwQegACHpCygw5eKeK/B/viiTRvTkujLWf2UEHzDSZA7yM5jt/BJE4lW:aSCQeLCHpCyNV9ZTRbkuOQzyMVt/blW

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2664	2080	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2080	2364	rundll32.exe	30
PID 2364 wrote to memory of 2080	2364	rundll32.exe	30
PID 2364 wrote to memory of 2080	2364	rundll32.exe	30
PID 2364 wrote to memory of 2080	2364	rundll32.exe	30
PID 2364 wrote to memory of 2080	2364	rundll32.exe	30
PID 2364 wrote to memory of 2080	2364	rundll32.exe	30
PID 2364 wrote to memory of 2080	2364	rundll32.exe	30
PID 2080 wrote to memory of 2664	2080	rundll32.exe	31
PID 2080 wrote to memory of 2664	2080	rundll32.exe	31
PID 2080 wrote to memory of 2664	2080	rundll32.exe	31
PID 2080 wrote to memory of 2664	2080	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserMgr_2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserMgr_2.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 248
    3⤵
    - Program crash
    PID:2664

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

Windows 7 deprecation

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