ef7b6b21e87d57e415ed3c926bda9acda39a2dd2139b8840affc6b9003229a05

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 12:20

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General

Target

184e61fe9e1fa64647838f99384013a1.exe
Size

245KB
MD5

184e61fe9e1fa64647838f99384013a1
SHA1

a598cccd9742105e7b4c01927f0e138fcee361fd
SHA256

ef7b6b21e87d57e415ed3c926bda9acda39a2dd2139b8840affc6b9003229a05
SHA512

2c0b3c592012119cfcfff21ebf59f8ac99bacdd120df1acf3183d0bfdfbd92c0dc12304da4753f02138d9f2422cd6a5def4e38f190884f5e3a7508b22d206af1
SSDEEP

3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/e8KkgnYHfQlAH:o68i3odBiTl2+TCU/Ik8KfQlEe

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-1-5-21-3336304223-2978740688-3645194410-1000\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"	184e61fe9e1fa64647838f99384013a1.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SHARE_TEMP\Icon7.ico	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\bugMAKER.bat	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\winhash_up.exez	184e61fe9e1fa64647838f99384013a1.exe
File opened for modification	C:\Windows\winhash_up.exez	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\winhash_up.exe	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	184e61fe9e1fa64647838f99384013a1.exe
File created	C:\Windows\SHARE_TEMP\Icon3.ico	184e61fe9e1fa64647838f99384013a1.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
2364	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 2364	4712	184e61fe9e1fa64647838f99384013a1.exe	89
PID 4712 wrote to memory of 2364	4712	184e61fe9e1fa64647838f99384013a1.exe	89
PID 4712 wrote to memory of 2364	4712	184e61fe9e1fa64647838f99384013a1.exe	89

C:\Users\Admin\AppData\Local\Temp\184e61fe9e1fa64647838f99384013a1.exe
"C:\Users\Admin\AppData\Local\Temp\184e61fe9e1fa64647838f99384013a1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4712
- 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:2364

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
d9ecd331cabdf3bb2256122c512381f2

SHA1
0c6cbbc9672df004e0be0d0f7f9604d33d220ee5

SHA256
a9672675c92f8cd1623e7cc90996829604dde3bb387f25a397d5cc12fd89c67a

SHA512
dec8744bb626cf8b11b2c7eceba54dbf32ea171efd5ba338f852a9dd5479d3b6f5c7a4de390eb07dddfe939da2b7d8c5c4b01d3a1a7f74537a55aa78646d89ec

Download Submit
memory/4712-24-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads