eb00619aee2f9e765d8e20bd99491ae6a8c0a3d6a9c04a242bae05a1ac442560

Analysis

max time kernel
146s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-03-2024 05:55

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General

Target

b3f4967d7a9a7c29f3844751de5ba7c7.exe
Size

391KB
MD5

b3f4967d7a9a7c29f3844751de5ba7c7
SHA1

f84b22cc174149603352f13d512fe707b0a7fd92
SHA256

eb00619aee2f9e765d8e20bd99491ae6a8c0a3d6a9c04a242bae05a1ac442560
SHA512

0686025721c09a66b3c71c9ab69ecf83908edb39fa8bcf13caeacfcd46c006bcc64bb159092339f54977af342a0ec168a791b4d1247bec9f99bf6f5a375a7dd6
SSDEEP

12288:MjkArEN249AyE/rbaMct4bO2/VnKyNQs2sHy:/FE//Tct4bOstNZ2sHy

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4284	server.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/684-0-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-10-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/684-10-0x0000000000400000-0x00000000004B5000-memory.dmp	autoit_exe

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
4472	4284	WerFault.exe	89

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 4284	684	b3f4967d7a9a7c29f3844751de5ba7c7.exe	89
PID 684 wrote to memory of 4284	684	b3f4967d7a9a7c29f3844751de5ba7c7.exe	89
PID 684 wrote to memory of 4284	684	b3f4967d7a9a7c29f3844751de5ba7c7.exe	89

C:\Users\Admin\AppData\Local\Temp\b3f4967d7a9a7c29f3844751de5ba7c7.exe
"C:\Users\Admin\AppData\Local\Temp\b3f4967d7a9a7c29f3844751de5ba7c7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:684
- C:\Users\Admin\AppData\Local\Temp\server.exe
  C:\Users\Admin\AppData\Local\Temp/server.exe
  2⤵
  - Executes dropped EXE
  PID:4284
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4284 -s 336
    3⤵
    - Program crash
    PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4284 -ip 4284
1⤵
PID:4600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
121KB

MD5
7f5198614e6f45199ee96f6747b4bbb5

SHA1
6d063375c52a990594a32c3fb1662219046b2189

SHA256
6cf93998024b4b1f6a87d0e36c18476a7f0d8251b834fcd120811ab47c93befb

SHA512
9688935d19a002e6f13294c854ff3405dadc0204c344f016e42a1c7a365c5a583c6e6a59d7ac6a654d3529ca2e16fcb36197cf55ac2728274b9e230d40522a30

Download Submit
memory/684-0-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/684-10-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4284-8-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4284-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download