9be2fc4df40ea589387f7979fa2af94f618b7d62f80d7bc9f4ffe84e84477737

Analysis

max time kernel
95s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2024 23:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

9be2fc4df40ea589387f7979fa2af94f618b7d62f80d7bc9f4ffe84e84477737N.dll
Size

186KB
MD5

0c7a7a32fb27eb6e23b1404940f07360
SHA1

e935fb97694ee00b09f0f38d5ff14546384d1240
SHA256

9be2fc4df40ea589387f7979fa2af94f618b7d62f80d7bc9f4ffe84e84477737
SHA512

d0fa076f5b1ea31b03f34480605f450f0ccaf85c805338cd4164e8b334ea128954894342d249e37077124cf9a5486a58883619dd7377e1b8097525dc4bec53f5
SSDEEP

3072:sD7Y1WFgaafAl35PktYhGTuXHHetkqcqvnhzduIb:sDSWFFQiATuXHHel/VgIb

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2900	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/0x000c000000023b33-3.dat	upx
behavioral2/memory/2900-4-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/2900-7-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2876	2900	WerFault.exe	83

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 4624 wrote to memory of 808	4624	rundll32.exe	82
PID 4624 wrote to memory of 808	4624	rundll32.exe	82
PID 4624 wrote to memory of 808	4624	rundll32.exe	82
PID 808 wrote to memory of 2900	808	rundll32.exe	83
PID 808 wrote to memory of 2900	808	rundll32.exe	83
PID 808 wrote to memory of 2900	808	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9be2fc4df40ea589387f7979fa2af94f618b7d62f80d7bc9f4ffe84e84477737N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9be2fc4df40ea589387f7979fa2af94f618b7d62f80d7bc9f4ffe84e84477737N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:808
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2900
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 264
      4⤵
      Program crash
      PID:2876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2900 -ip 2900
1⤵
PID:4956

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
dfb5daabb95dcfad1a5faf9ab1437076

SHA1
4a199569a9b52911bee7fb19ab80570cc5ff9ed1

SHA256
54282ec29d4993ed6e9972122cfbb70bba4898a21d527bd9e72a166d7ec2fdc0

SHA512
5d31c34403ab5f8db4a6d84f2b5579d4ea18673914b626d78e458a648ac20ddd8e342818e807331036d7bb064f596a02b9737acac42fbead29260343a30717e8

Download Submit
memory/808-1-0x0000000074B10000-0x0000000074B44000-memory.dmp

Filesize
208KB

Download
memory/2900-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2900-6-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/2900-7-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download