c9349e3cde70a1566d8df4c42e6a6b01a1189f6b4f25c7d7ffd692759a9cad76

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 12:03

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General

Target

c9349e3cde70a1566d8df4c42e6a6b01a1189f6b4f25c7d7ffd692759a9cad76.dll
Size

136KB
MD5

a08fb5ca6d167095035a559c5f80a73c
SHA1

1e85d9e06b2e5e09fd41ef3448fd873b1005d592
SHA256

c9349e3cde70a1566d8df4c42e6a6b01a1189f6b4f25c7d7ffd692759a9cad76
SHA512

07d2e7e250224ab0effdbcc9a39379c126e9cd050cbb1013dda6f924fd87a26e5f20c6442e01b19a712bc601889c81c7541e1b4df1e2e5df8739d0f9cf7f5324
SSDEEP

1536:1gmf5TfxYPfpoT/7ivK6Fr/E0odbbb2inHetkc5cqvnMg/WpRh70qQ4SDMTTtFVz:1rEnpofGTuXHHetkqcqvnhzduB

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2532	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b0f-3.dat	upx
behavioral2/memory/2532-4-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/2532-8-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4360	2532	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 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	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 4440	1384	rundll32.exe	83
PID 1384 wrote to memory of 4440	1384	rundll32.exe	83
PID 1384 wrote to memory of 4440	1384	rundll32.exe	83
PID 4440 wrote to memory of 2532	4440	rundll32.exe	84
PID 4440 wrote to memory of 2532	4440	rundll32.exe	84
PID 4440 wrote to memory of 2532	4440	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c9349e3cde70a1566d8df4c42e6a6b01a1189f6b4f25c7d7ffd692759a9cad76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c9349e3cde70a1566d8df4c42e6a6b01a1189f6b4f25c7d7ffd692759a9cad76.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4440
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2532
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 264
      4⤵
      Program crash
      PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2532 -ip 2532
1⤵
PID:4364

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

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
dfb5daabb95dcfad1a5faf9ab1437076

SHA1
4a199569a9b52911bee7fb19ab80570cc5ff9ed1

SHA256
54282ec29d4993ed6e9972122cfbb70bba4898a21d527bd9e72a166d7ec2fdc0

SHA512
5d31c34403ab5f8db4a6d84f2b5579d4ea18673914b626d78e458a648ac20ddd8e342818e807331036d7bb064f596a02b9737acac42fbead29260343a30717e8

Download Submit
memory/2532-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2532-6-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/2532-8-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4440-0-0x0000000010000000-0x0000000010022000-memory.dmp

Filesize
136KB

Download