a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302

Analysis

max time kernel
141s
max time network
129s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 13:59

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General

Target

a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe
Size

197KB
MD5

7a04af67dadae9c59b56ee819bbef32d
SHA1

d032ee01af2669b20105d78c62403e1b1d8984d3
SHA256

a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302
SHA512

48f95d02900b2b5e56c38540e7f25f838703d3804e867eb3957cc2fce48b57b109d978271efa35a817017ec3b59f4c66b5843532db7448acbd1bad292a1c8f6f
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOB:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXc

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2976	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1712	iuyhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\iuyhost.exe	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe
File opened for modification	C:\Windows\Debug\iuyhost.exe	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	iuyhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	iuyhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2020	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2976	2020	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe	29
PID 2020 wrote to memory of 2976	2020	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe	29
PID 2020 wrote to memory of 2976	2020	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe	29
PID 2020 wrote to memory of 2976	2020	a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe	29

C:\Users\Admin\AppData\Local\Temp\a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe
"C:\Users\Admin\AppData\Local\Temp\a3169db8c7109ee198f0456a7aeab9c0cfd1b800bab8bbd18b09d4db70f08302.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A3169D~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2976

C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\debug\iuyhost.exe

Filesize
197KB

MD5
fb86b26fb920bc75bbae1a1a5a600cd3

SHA1
a97aba4ee31eab63551eaf7de22cf102e7099eec

SHA256
d02fa26db258f4a9f5cfb045a086de49bb37fcf3b6dec24f2c00d2c67d51372f

SHA512
6f42f9f902ed51c021c752ed51bd1f8fc2e6d02a87194447d93764f12afbaee37f6076a9f860b30e06bc9b79729d56615af107481f1715abfd27cc8caf7c9b70

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