65ccd55214d04e7abc7a225a424740d61773c89b4640477086ec4b5fecfba9cc

Analysis

max time kernel
97s
max time network
99s
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 06:42

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General

Target

65ccd55214d04e7abc7a225a424740d61773c89b4640477086ec4b5fecfba9ccN.dll
Size

256KB
MD5

9dc6a986c4c097c9ff0b01c162b6bc50
SHA1

74088cf3606d419d133fcecc884b3fc465ca37d2
SHA256

65ccd55214d04e7abc7a225a424740d61773c89b4640477086ec4b5fecfba9cc
SHA512

c2e6c2aad92965098c79fee6dae0eb12cc173955c485c79862a9889d7fef6c3b447a8c6954c4bda72c3e4b1d0784d79a718f4f3c59b00d647852ef30c34561fe
SSDEEP

3072:cKomU8Ty/v/eSPZwozPixqI13GKkjPmIb8GTuXHHetkqcqvnhzduO:ToSTE4xqI+P5TuXHHel/VgO

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5020	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/0x000a000000023c12-3.dat	upx
behavioral2/memory/5020-4-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/5020-7-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1588	5020	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	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 3596 wrote to memory of 2244	3596	rundll32.exe	82
PID 3596 wrote to memory of 2244	3596	rundll32.exe	82
PID 3596 wrote to memory of 2244	3596	rundll32.exe	82
PID 2244 wrote to memory of 5020	2244	rundll32.exe	83
PID 2244 wrote to memory of 5020	2244	rundll32.exe	83
PID 2244 wrote to memory of 5020	2244	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\65ccd55214d04e7abc7a225a424740d61773c89b4640477086ec4b5fecfba9ccN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\65ccd55214d04e7abc7a225a424740d61773c89b4640477086ec4b5fecfba9ccN.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2244
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5020
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5020 -s 264
      4⤵
      Program crash
      PID:1588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 5020 -ip 5020
1⤵
PID:2768

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/2244-0-0x0000000010000000-0x0000000010043000-memory.dmp

Filesize
268KB

Download
memory/5020-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/5020-6-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/5020-7-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download