6daa7268d90d50641f41c556d5af389f0eee5bc7dbc6a891254289dd879caff3

Analysis

max time kernel
94s
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
16-12-2024 00:46

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General

Target

6daa7268d90d50641f41c556d5af389f0eee5bc7dbc6a891254289dd879caff3N.dll
Size

204KB
MD5

9bb76f64e7b6e78460052b40f578fec0
SHA1

40f4d328a4ff0f3bc3a5365fc9c87953d8f95c6b
SHA256

6daa7268d90d50641f41c556d5af389f0eee5bc7dbc6a891254289dd879caff3
SHA512

5972aa166b6969350697ae37898151277f0d4e7754773fb488ba4a1c47da516afc674a15a19657f5f662a068949da5776040d3308b2bb958ad128bd4c040e5a3
SSDEEP

3072:R4FioBm2dcuE0oo28xzAdWGFHxGTuXHHetkqcqvnhzduEE:R48oSA8bGTuXHHel/Vg9

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4708	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/0x000c000000023b59-3.dat	upx
behavioral2/memory/4708-4-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/4708-8-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4364	2204	WerFault.exe	83
5088	4708	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2204	2880	rundll32.exe	83
PID 2880 wrote to memory of 2204	2880	rundll32.exe	83
PID 2880 wrote to memory of 2204	2880	rundll32.exe	83
PID 2204 wrote to memory of 4708	2204	rundll32.exe	84
PID 2204 wrote to memory of 4708	2204	rundll32.exe	84
PID 2204 wrote to memory of 4708	2204	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6daa7268d90d50641f41c556d5af389f0eee5bc7dbc6a891254289dd879caff3N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6daa7268d90d50641f41c556d5af389f0eee5bc7dbc6a891254289dd879caff3N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4708
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4708 -s 264
      4⤵
      Program crash
      PID:5088
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 660
    3⤵
    - Program crash
    PID:4364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2204 -ip 2204
1⤵
PID:3112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4708 -ip 4708
1⤵
PID:4512

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

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
dfb5daabb95dcfad1a5faf9ab1437076

SHA1
4a199569a9b52911bee7fb19ab80570cc5ff9ed1

SHA256
54282ec29d4993ed6e9972122cfbb70bba4898a21d527bd9e72a166d7ec2fdc0

SHA512
5d31c34403ab5f8db4a6d84f2b5579d4ea18673914b626d78e458a648ac20ddd8e342818e807331036d7bb064f596a02b9737acac42fbead29260343a30717e8

Download Submit
memory/2204-0-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2204-7-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/4708-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4708-6-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/4708-8-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download