f4a29c49f51c7fbcd76718566d33ee9b6b0a43c0eff1e9e8396fa0f278b9d731

Analysis

max time kernel
92s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 05:46

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General

Target

f4a29c49f51c7fbcd76718566d33ee9b6b0a43c0eff1e9e8396fa0f278b9d731N.dll
Size

56KB
MD5

3164b48da7b98c1acc2c2ff32bf25590
SHA1

d99a46a16214594ad6decbc22ef3002b53307443
SHA256

f4a29c49f51c7fbcd76718566d33ee9b6b0a43c0eff1e9e8396fa0f278b9d731
SHA512

4de4e788abbfd85671fae80e0f4861f72e55f11c895cdfb1b3904a1c08943d7d57ce5288804e2fa04a375d33ae6220ddc6bbad8a776c28baa4eab15d08eadf55
SSDEEP

1536:1mv1kzwz1Bp27GjV3P1YI3oyzfmgszyq1d:1Pcz1j4yzf9sWkd

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4292	hrlC302.tmp

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3112	4292	WerFault.exe	86

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	hrlC302.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 1012	4272	rundll32.exe	85
PID 4272 wrote to memory of 1012	4272	rundll32.exe	85
PID 4272 wrote to memory of 1012	4272	rundll32.exe	85
PID 1012 wrote to memory of 4292	1012	rundll32.exe	86
PID 1012 wrote to memory of 4292	1012	rundll32.exe	86
PID 1012 wrote to memory of 4292	1012	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f4a29c49f51c7fbcd76718566d33ee9b6b0a43c0eff1e9e8396fa0f278b9d731N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f4a29c49f51c7fbcd76718566d33ee9b6b0a43c0eff1e9e8396fa0f278b9d731N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1012
- - C:\Users\Admin\AppData\Local\Temp\hrlC302.tmp
    C:\Users\Admin\AppData\Local\Temp\hrlC302.tmp
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4292
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 388
      4⤵
      Program crash
      PID:3112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4292 -ip 4292
1⤵
PID:4524

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:\Users\Admin\AppData\Local\Temp\hrlC302.tmp

Filesize
49KB

MD5
0429f3eae2d5db826955e38a715d4c5e

SHA1
92017b72ec3af3758768022e7879ca2802b03a22

SHA256
fc501e0e0bb0ec3a21867ff5055db3b1a3b7347cf131451a760f2a2df264fa81

SHA512
bf9724969fc79e913e2390f1ae2a6c6606b465dede20b4cf6c2c3c4a5da48c2e2f9403a3152eaa4539f89cea0ea62184c1f79e1e83047a91774de31522c25338

Download Submit
memory/4292-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4292-5-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download