8f1be325faa69592642419a3ce86343a7b484853d0a1b27bd769f8435be85381

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2025 18:03

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General

Target

HTWP098760233.exe
Size

458KB
MD5

e98405841a1287e07e371cc0058475ad
SHA1

21a40b88b8b5fbae87836a32e94c32afc4898eb3
SHA256

8f1be325faa69592642419a3ce86343a7b484853d0a1b27bd769f8435be85381
SHA512

801a0cfb1c359c86a54616d6d4a314b18a875bb907c2056c4435e3e9e128dc215dc5a54e95e2676cd4924c15a568dcf596caad7e4b1b4a992ae9dab56da7d9ca
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLUb0z+ZHhHg4vzlN:tthEVaPqLUtNJdblN

Score

7^/10

discovery upx

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Milburr.vbs	Milburr.exe

Executes dropped EXE 1 IoCs

pid	Process
1572	Milburr.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4260-13-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe
behavioral2/memory/1572-23-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4260-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/files/0x0007000000023cae-10.dat	upx
behavioral2/memory/4260-13-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/1572-23-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2300	1572	WerFault.exe	82

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	HTWP098760233.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Milburr.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4260	HTWP098760233.exe
4260	HTWP098760233.exe
1572	Milburr.exe
1572	Milburr.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
4260	HTWP098760233.exe
4260	HTWP098760233.exe
1572	Milburr.exe
1572	Milburr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 1572	4260	HTWP098760233.exe	82
PID 4260 wrote to memory of 1572	4260	HTWP098760233.exe	82
PID 4260 wrote to memory of 1572	4260	HTWP098760233.exe	82
PID 1572 wrote to memory of 5000	1572	Milburr.exe	83
PID 1572 wrote to memory of 5000	1572	Milburr.exe	83
PID 1572 wrote to memory of 5000	1572	Milburr.exe	83

C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe
"C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Users\Admin\AppData\Local\batchers\Milburr.exe
  "C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1572
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe"
    3⤵
    PID:5000
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1572 -s 752
    3⤵
    - Program crash
    PID:2300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1572 -ip 1572
1⤵
PID:548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\batchers\Milburr.exe

Filesize
458KB

MD5
e98405841a1287e07e371cc0058475ad

SHA1
21a40b88b8b5fbae87836a32e94c32afc4898eb3

SHA256
8f1be325faa69592642419a3ce86343a7b484853d0a1b27bd769f8435be85381

SHA512
801a0cfb1c359c86a54616d6d4a314b18a875bb907c2056c4435e3e9e128dc215dc5a54e95e2676cd4924c15a568dcf596caad7e4b1b4a992ae9dab56da7d9ca

Download Submit
memory/1572-21-0x0000000002F60000-0x0000000003060000-memory.dmp

Filesize
1024KB

Download
memory/1572-23-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/4260-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/4260-7-0x0000000003EE0000-0x0000000003FE0000-memory.dmp

Filesize
1024KB

Download
memory/4260-13-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download