51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b

Analysis

max time kernel
94s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/01/2025, 23:57

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General

Target

51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b.dll
Size

504KB
MD5

fa65ea94638f2ca3d0186509d1c6715e
SHA1

edefec8a0f3b71c0fed784b5435462eec8b8578a
SHA256

51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b
SHA512

e3eedf70cab653e721580f2d5b77216afbf3ba8ad13feb5158c597c420c99d9185f501c1b27c55b6fd40391682c4e43e0be2ae232fb27e8abbe7fe16c8f72b10
SSDEEP

12288:/h8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNM3I9zjD:/8F+Pzr/Hfp4MIYwZckMQmMsXD

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2320	rundll32mgr.exe

Loads dropped DLL 9 IoCs

pid	Process
584	rundll32.exe
584	rundll32.exe
852	WerFault.exe
852	WerFault.exe
852	WerFault.exe
852	WerFault.exe
852	WerFault.exe
852	WerFault.exe
852	WerFault.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process
852	2320	WerFault.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

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 15 IoCs

description	pid	Process	procid_target
PID 604 wrote to memory of 584	604	rundll32.exe	31
PID 604 wrote to memory of 584	604	rundll32.exe	31
PID 604 wrote to memory of 584	604	rundll32.exe	31
PID 604 wrote to memory of 584	604	rundll32.exe	31
PID 604 wrote to memory of 584	604	rundll32.exe	31
PID 604 wrote to memory of 584	604	rundll32.exe	31
PID 604 wrote to memory of 584	604	rundll32.exe	31
PID 584 wrote to memory of 2320	584	rundll32.exe	32
PID 584 wrote to memory of 2320	584	rundll32.exe	32
PID 584 wrote to memory of 2320	584	rundll32.exe	32
PID 584 wrote to memory of 2320	584	rundll32.exe	32
PID 2320 wrote to memory of 852	2320	rundll32mgr.exe	33
PID 2320 wrote to memory of 852	2320	rundll32mgr.exe	33
PID 2320 wrote to memory of 852	2320	rundll32mgr.exe	33
PID 2320 wrote to memory of 852	2320	rundll32mgr.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:604
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:584
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2320
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 100
      4⤵
      Loads dropped DLL
      Program crash
      PID:852

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

\Windows\SysWOW64\rundll32mgr.exe

Filesize
69KB

MD5
03a048104272c7aabc167e893cc6d3cd

SHA1
304fdf6a45f2e4e422365f836ae526af3cd72af6

SHA256
cc3aa2d0788746f8e848b6e59142502ca61afe72c380c6f44b353064567b33d5

SHA512
0989ecced26ca343f2924b6407299886fe47b59e00ac9e9f51c0e4145d06f64d6aa0db1c2e28a0fcba343609aef39682916a809b786139c45bcc4adb28ec5df1

Download Submit
memory/584-3-0x0000000010000000-0x0000000010083000-memory.dmp

Filesize
524KB

Download
memory/584-0-0x0000000010000000-0x0000000010083000-memory.dmp

Filesize
524KB

Download
memory/584-9-0x0000000010000000-0x0000000010083000-memory.dmp

Filesize
524KB

Download