ad93d0b33d113936122bfdb3cf7ad5faf1162295885718a01cded407ac7a82db

Analysis

max time kernel
168s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2024 12:51

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General

Target

43ba79a919a8033f7e8edf5d3fb9b952.exe
Size

472KB
MD5

43ba79a919a8033f7e8edf5d3fb9b952
SHA1

03c1fc41195b133903f88212c7bbbf361c24e953
SHA256

ad93d0b33d113936122bfdb3cf7ad5faf1162295885718a01cded407ac7a82db
SHA512

e5de06da444ab62a9212ffdaf316500acb639b8528e6e24704b4c72726010269c48af4cac472e52fc9f2cad7d16b2b016cba6753dea02610d8d440c0d24c5af4
SSDEEP

12288:TNodBiTI+TpDA6EZO7KUQRZ66z24VZbdrpgrXN2LWzmidN:ZoPD+TpD3vKU6Z66z24VZbFpgJ2LWzm+

Score

7^/10

persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart"	43ba79a919a8033f7e8edf5d3fb9b952.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SHARE_TEMP\Icon3.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\winhash_up.exez	43ba79a919a8033f7e8edf5d3fb9b952.exe
File opened for modification	C:\Windows\winhash_up.exez	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\winhash_up.exe	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\SHARE_TEMP\Icon7.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	43ba79a919a8033f7e8edf5d3fb9b952.exe
File created	C:\Windows\bugMAKER.bat	43ba79a919a8033f7e8edf5d3fb9b952.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3596	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 3596	4316	43ba79a919a8033f7e8edf5d3fb9b952.exe	92
PID 4316 wrote to memory of 3596	4316	43ba79a919a8033f7e8edf5d3fb9b952.exe	92
PID 4316 wrote to memory of 3596	4316	43ba79a919a8033f7e8edf5d3fb9b952.exe	92

C:\Users\Admin\AppData\Local\Temp\43ba79a919a8033f7e8edf5d3fb9b952.exe
"C:\Users\Admin\AppData\Local\Temp\43ba79a919a8033f7e8edf5d3fb9b952.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\bugMAKER.bat
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  PID:3596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\bugMAKER.bat

Filesize
76B

MD5
99c4d67fab434afa4b8a3eca4295fd12

SHA1
ed4bd5f3a355c36cde8f42ca5fa678d0eb44fb6d

SHA256
814c520aac8b4f24c809b1f921ec07dd43aa73ce19c5de858d065fb0b1bb0142

SHA512
0f624a88eaa0a8cc5677349d9e3e63bd429f724cfa1b7991c89ee03f8477016a28d4519373b660c9123c867692a62de20e451431e774970c924d8ffd0016aa36

Download Submit
memory/4316-24-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads