1ba66f4736d0866ffc70e217c4080067ee36d4663f3d1bcb82421b4b98d39b18

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 16:20

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General

Target

1ba66f4736d0866ffc70e217c4080067ee36d4663f3d1bcb82421b4b98d39b18N.dll
Size

2.6MB
MD5

85699f224b69d34beb334e4d99d766d0
SHA1

e2f33b7967c4849cd9671367b33437a23dd971b6
SHA256

1ba66f4736d0866ffc70e217c4080067ee36d4663f3d1bcb82421b4b98d39b18
SHA512

899011cc168efa4b506888c4dfb9bc4cc10b736a58cc5782c92d5ce7ba963e9f61361ed8821205d333d20de7dc80d46dbf8b0179bea0956b626f9384eab4d1d6
SSDEEP

49152:15H5NODCwCU2vWBSxnlcheUUd+QOnsyFNykwUQlX6NLd:VN4CwUv1xnlBUUdhO9FgjUnH

Score

7^/10

discovery upx vmprotect

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1760	rundll32mgr.exe

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/1660-1-0x0000000010000000-0x00000000102B9000-memory.dmp	vmprotect

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/0x000b000000023b88-3.dat	upx
behavioral2/memory/1760-4-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/1760-8-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5100	1760	WerFault.exe	84
1144	1660	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 380 wrote to memory of 1660	380	rundll32.exe	83
PID 380 wrote to memory of 1660	380	rundll32.exe	83
PID 380 wrote to memory of 1660	380	rundll32.exe	83
PID 1660 wrote to memory of 1760	1660	rundll32.exe	84
PID 1660 wrote to memory of 1760	1660	rundll32.exe	84
PID 1660 wrote to memory of 1760	1660	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1ba66f4736d0866ffc70e217c4080067ee36d4663f3d1bcb82421b4b98d39b18N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:380
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1ba66f4736d0866ffc70e217c4080067ee36d4663f3d1bcb82421b4b98d39b18N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1760
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1760 -s 264
      4⤵
      Program crash
      PID:5100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 564
    3⤵
    - Program crash
    PID:1144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1760 -ip 1760
1⤵
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1660 -ip 1660
1⤵
PID:1556

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/1660-1-0x0000000010000000-0x00000000102B9000-memory.dmp

Filesize
2.7MB

Download
memory/1760-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1760-6-0x0000000002060000-0x0000000002061000-memory.dmp

Filesize
4KB

Download
memory/1760-8-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download