cab52b5e7ab2354dbe763a4a805e453f4ab0f120e0dfb505a3a637623493c940

Analysis

max time kernel
141s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 16:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

jzks.exe
Size

3.9MB
MD5

01aef9615d281505970111e7298b6f62
SHA1

946652c364fca9f855dbdd1600027879cfb9bff0
SHA256

7f437824320a445409c8f6925ed5fd5a30f7e28987019ad56a2b3961132fb838
SHA512

dda5cbc4fdcb5b4646d7bed4e53253751b3a7355ed619c1316bafe4cc93fb905b1a10b3da52db303980e830cce0dbde8854161bfd44d9985eb281cdc170a22d2
SSDEEP

98304:wZSfWrIKyHJ5aYRoF8uEPt/l3H/WO1yOfAiZ:w4fNJ5aYmHO1LfPZ

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3044	irsetup.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000002342c-2.dat	upx
behavioral2/memory/3044-4-0x0000000000400000-0x0000000000527000-memory.dmp	upx
behavioral2/memory/3044-14-0x0000000000400000-0x0000000000527000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\¼ÝÕÕÀíÂÛ¿¼ÊÔËÙ³É Setup Log.txt	irsetup.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3044	irsetup.exe
3044	irsetup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 724 wrote to memory of 3044	724	jzks.exe	85
PID 724 wrote to memory of 3044	724	jzks.exe	85
PID 724 wrote to memory of 3044	724	jzks.exe	85

C:\Users\Admin\AppData\Local\Temp\jzks.exe
"C:\Users\Admin\AppData\Local\Temp\jzks.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:724
- C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe
  __IRAOFF:520716 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\jzks.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:3044

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
memory/3044-4-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/3044-14-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download