3265cc372d5cae4380cf4852e66d57f8bd605a0d8600299535365b5b7f34b0c7

Analysis

max time kernel
144s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 20:12

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General

Target

StockMarket.exe
Size

4.4MB
MD5

7ea80546d212a60969870f5cdc2f959e
SHA1

4854d8f4867c934bdf543b971903043e763dd460
SHA256

ba702488ba4b10006387805f9076c763596b06f60e63e4dc0a547df345d66fcf
SHA512

710d45f2a960fafd286ebdf05d341628c8c846852f66a1b3cfe776a9343120b9bcc6896cc6da1c9b2cd67ccfd7779a3daeb73fc38f104e43570a475307f61149
SSDEEP

98304:wZUx+3dutXJCwMWwfnHgCqUJUI0cMXcq7i:wCY3w5MWMoUyfcL

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4604	irsetup.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000023113-2.dat	upx
behavioral2/memory/4604-3-0x0000000000400000-0x0000000000527000-memory.dmp	upx
behavioral2/memory/4604-15-0x0000000000400000-0x0000000000527000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\½ðÊÖÖ¸Êý¾Ý¹ÜÀíÏµÍ³ 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
4604	irsetup.exe
4604	irsetup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 4604	4788	StockMarket.exe	83
PID 4788 wrote to memory of 4604	4788	StockMarket.exe	83
PID 4788 wrote to memory of 4604	4788	StockMarket.exe	83

C:\Users\Admin\AppData\Local\Temp\StockMarket.exe
"C:\Users\Admin\AppData\Local\Temp\StockMarket.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe
  __IRAOFF:520716 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\StockMarket.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:4604

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\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
memory/4604-3-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/4604-15-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download