98352bc3a259746bff4093419f57427e918f19fa05e041175ae10b1592a28716

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
19-12-2024 00:45

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General

Target

98352bc3a259746bff4093419f57427e918f19fa05e041175ae10b1592a28716.dll
Size

200KB
MD5

b015568522540ea68ff777e6e63d6c5c
SHA1

0a32e61bf2eb3215bd121328ddea254d725e0a6e
SHA256

98352bc3a259746bff4093419f57427e918f19fa05e041175ae10b1592a28716
SHA512

f83461ce57d1a02e3043a4e45770b25f588209531b54936823f22f1f630b8084712a186cb4b6721f8585c860bbc2da504438d0b96cd33547baf89bc465e700b2
SSDEEP

3072:DOBOLWXivHYMzv2HvP5YeBTEEP2831Vr/rF8QOSta7Wefkka+4BCLUIXCjtmVlG7:DOp8HpzdQOStKIdSUIXCYGcDlTVc

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3608	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/0x000c000000023b7d-3.dat	upx
behavioral2/memory/3608-4-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral2/memory/3608-8-0x0000000000400000-0x000000000046A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1396	3608	WerFault.exe	83

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 6 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 944	3496	rundll32.exe	82
PID 3496 wrote to memory of 944	3496	rundll32.exe	82
PID 3496 wrote to memory of 944	3496	rundll32.exe	82
PID 944 wrote to memory of 3608	944	rundll32.exe	83
PID 944 wrote to memory of 3608	944	rundll32.exe	83
PID 944 wrote to memory of 3608	944	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\98352bc3a259746bff4093419f57427e918f19fa05e041175ae10b1592a28716.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\98352bc3a259746bff4093419f57427e918f19fa05e041175ae10b1592a28716.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:944
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    PID:3608
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3608 -s 260
      4⤵
      Program crash
      PID:1396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3608 -ip 3608
1⤵
PID:2436

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
101KB

MD5
1f92a7cf627f4c7d554d28326f1da954

SHA1
b7befe20fd68856539347f0650473b6dad504863

SHA256
fee6b0318f0ba98b8df448017226ad900167f9d7cb1d21d603f5da3022f29e00

SHA512
07c8d54b2b68f11b9a05fd652f0dc5b3bc30de58eb20537846763bc011e64496c0636a8e37abbc96d07a6ff9c304141e38e8f0453760d48f753343eaa319fec5

Download Submit
memory/944-0-0x0000000007000000-0x0000000007034000-memory.dmp

Filesize
208KB

Download
memory/3608-4-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/3608-6-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/3608-8-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download