bbe8f13095212a5275238e25d77734aa51a93ff8bc1b60254588655955a219ba

Analysis

max time kernel
142s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 22:59

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General

Target

JSZXHsetup273.exe
Size

2.5MB
MD5

6c3fa2a7ddbdfc0b67b93066646095dd
SHA1

d0ce8c8d899913ea19d11208ab571ed863277ec7
SHA256

19f9442bb768eec9eee7e9cebcbf186cebe1e13d91444fcb4b92f75d6f2d0d0a
SHA512

d7d042cf1009de79dd4cca4760c95210de7fe2dc3f164b1c77f9707ed5701aff6dcb6bc6de1c93662cfbe14cc1a8b1845a4270f377e503a42fbe76c4d83e10b9
SSDEEP

49152:wl8eOJhS8vADZ45IrnLby9IxwJt8m62rlozu7REtYlAJesGM6:wZlaiGIriKktVCqEyEGM6

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2968	irsetup.exe

Loads dropped DLL 4 IoCs

pid	Process
2268	JSZXHsetup273.exe
2968	irsetup.exe
2968	irsetup.exe
2968	irsetup.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0009000000015c23-1.dat	upx
behavioral1/memory/2968-6-0x0000000000400000-0x0000000000527000-memory.dmp	upx
behavioral1/memory/2968-9-0x0000000000530000-0x0000000000657000-memory.dmp	upx
behavioral1/memory/2968-27-0x0000000000400000-0x0000000000527000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\ÅÅÁÐ3-3D½ðÊÖÖ¸ËõË®¹¤¾ß 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
2968	irsetup.exe
2968	irsetup.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2968	2268	JSZXHsetup273.exe	28
PID 2268 wrote to memory of 2968	2268	JSZXHsetup273.exe	28
PID 2268 wrote to memory of 2968	2268	JSZXHsetup273.exe	28
PID 2268 wrote to memory of 2968	2268	JSZXHsetup273.exe	28
PID 2268 wrote to memory of 2968	2268	JSZXHsetup273.exe	28
PID 2268 wrote to memory of 2968	2268	JSZXHsetup273.exe	28
PID 2268 wrote to memory of 2968	2268	JSZXHsetup273.exe	28

C:\Users\Admin\AppData\Local\Temp\JSZXHsetup273.exe
"C:\Users\Admin\AppData\Local\Temp\JSZXHsetup273.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe
  __IRAOFF:520716 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\JSZXHsetup273.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:2968

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

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

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
memory/2268-4-0x0000000000B60000-0x0000000000C87000-memory.dmp

Filesize
1.2MB

Download
memory/2968-6-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/2968-9-0x0000000000530000-0x0000000000657000-memory.dmp

Filesize
1.2MB

Download
memory/2968-12-0x0000000000530000-0x0000000000657000-memory.dmp

Filesize
1.2MB

Download
memory/2968-13-0x0000000000530000-0x0000000000657000-memory.dmp

Filesize
1.2MB

Download
memory/2968-27-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/2968-28-0x0000000000530000-0x0000000000657000-memory.dmp

Filesize
1.2MB

Download