05d452048449f86144cce66abc03d54a8e9d0eb10ddaba06b58799f1fe5d7c6a

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
22-11-2024 15:36

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General

Target

05d452048449f86144cce66abc03d54a8e9d0eb10ddaba06b58799f1fe5d7c6aN.dll
Size

170KB
MD5

484d15e963b3895714de38da279c94d0
SHA1

440e800883c261e39a27f4706cb727bac86a67e3
SHA256

05d452048449f86144cce66abc03d54a8e9d0eb10ddaba06b58799f1fe5d7c6a
SHA512

42ce513975eaa320096b0ffb808040447b6f43160a970b1445d4fd6ec35b5aae361ffade935c008fe101bc627e43596b50e879731ab530a7810dec84f9443129
SSDEEP

3072:bcwO/iTOdgWtJ6LCHn/rkiENpYrvQaSISixCC/xwp2rrUDg:bDTOdgWtYAjkR/YrvQaSrcwptDg

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32mgr.exe

pid process

4404 rundll32mgr.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe

pid	process
4404	rundll32mgr.exe

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

Processes:

resource	yara_rule
C:\Windows\SysWOW64\rundll32mgr.exe	upx
behavioral2/memory/4404-8-0x0000000000400000-0x0000000000477000-memory.dmp	upx
behavioral2/memory/4404-11-0x0000000000400000-0x0000000000477000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1808 4404 WerFault.exe rundll32mgr.exe

pid	pid_target	process	target process
1808	4404	WerFault.exe	rundll32mgr.exe

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

Processes:

rundll32.exerundll32mgr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2428 rundll32.exe

description	pid	process
Token: SeDebugPrivilege	2428	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 3676 wrote to memory of 2428	3676	rundll32.exe	rundll32.exe
PID 3676 wrote to memory of 2428	3676	rundll32.exe	rundll32.exe
PID 3676 wrote to memory of 2428	3676	rundll32.exe	rundll32.exe
PID 2428 wrote to memory of 4404	2428	rundll32.exe	rundll32mgr.exe
PID 2428 wrote to memory of 4404	2428	rundll32.exe	rundll32mgr.exe
PID 2428 wrote to memory of 4404	2428	rundll32.exe	rundll32mgr.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\05d452048449f86144cce66abc03d54a8e9d0eb10ddaba06b58799f1fe5d7c6aN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3676
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\05d452048449f86144cce66abc03d54a8e9d0eb10ddaba06b58799f1fe5d7c6aN.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4404
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4404 -s 264
      4⤵
      Program crash
      PID:1808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4404 -ip 4404
1⤵
PID:3488

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
134KB

MD5
774b9c11bcc0dbf50425e3935100b905

SHA1
519338139ca0deaa4b42e056468087e18fd1f253

SHA256
be6cab2cfd23bd5cd633264eb9a7d55f0feacda3aff05db031af04a531585590

SHA512
6d9a570b441f96013bc5ae2bdc6422beb0f48c3953da00e2443e94de531f8abda9ad8403380543f95e0ac16d84985e1a5829556ff7bf26fca85afbc86fc07872

Download Submit
memory/2428-0-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/2428-9-0x0000000077812000-0x0000000077813000-memory.dmp

Filesize
4KB

Download
memory/2428-6-0x0000000001080000-0x0000000001081000-memory.dmp

Filesize
4KB

Download
memory/2428-5-0x0000000000F10000-0x0000000000F11000-memory.dmp

Filesize
4KB

Download
memory/2428-4-0x0000000000F00000-0x0000000000F01000-memory.dmp

Filesize
4KB

Download
memory/2428-12-0x0000000077812000-0x0000000077813000-memory.dmp

Filesize
4KB

Download
memory/4404-10-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/4404-8-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/4404-11-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download