2e7f51a3fc44dab2fc0daf0fd49dc56748854c1bddeb83cab180d2ecc7131e3b

Analysis

max time kernel
144s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 14:23

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General

Target

bff0626c341c2c60495f1f7a10c2ac13.exe
Size

183KB
MD5

bff0626c341c2c60495f1f7a10c2ac13
SHA1

31547faf187a8cb2c3afe3cba4fe87c82ad12258
SHA256

2e7f51a3fc44dab2fc0daf0fd49dc56748854c1bddeb83cab180d2ecc7131e3b
SHA512

3724b66cb89dba8ffac388ecc7c12f1a6fcd007536ce1368505f0e4e364a31fd76e56596b34e5ae8ae66ef9f3a461f0eeb0c0841e6f3f14840b855f666a76139
SSDEEP

3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8+pjBFy11Awd:o68i3odBiTl2+TCU//huhR

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-1-5-21-3803511929-1339359695-2191195476-1000\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"	bff0626c341c2c60495f1f7a10c2ac13.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SHARE_TEMP\Icon2.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\SHARE_TEMP\Icon3.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\SHARE_TEMP\Icon7.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\winhash_up.exe	bff0626c341c2c60495f1f7a10c2ac13.exe
File opened for modification	C:\Windows\winhash_up.exez	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\bugMAKER.bat	bff0626c341c2c60495f1f7a10c2ac13.exe
File created	C:\Windows\winhash_up.exez	bff0626c341c2c60495f1f7a10c2ac13.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
1416	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 1416	1484	bff0626c341c2c60495f1f7a10c2ac13.exe	89
PID 1484 wrote to memory of 1416	1484	bff0626c341c2c60495f1f7a10c2ac13.exe	89
PID 1484 wrote to memory of 1416	1484	bff0626c341c2c60495f1f7a10c2ac13.exe	89

C:\Users\Admin\AppData\Local\Temp\bff0626c341c2c60495f1f7a10c2ac13.exe
"C:\Users\Admin\AppData\Local\Temp\bff0626c341c2c60495f1f7a10c2ac13.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1484
- 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:1416

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
dfce8863ecd9daeba5d7e63e7cac1782

SHA1
13d041d10171416ce41074cdf708ab55965a0ec0

SHA256
ea9e1ae93982f76f6db70e0a1f7f71b5a497ea32a039996e4dbb7b3b4de60429

SHA512
1f0b0b00a846c4b802350cc8dde986fd272e423e30360b69dcf997ca10809d7004e0acdc1245ec37f8f0d609591a3cf208774099bf322af93c78775327fd9a0c

Download Submit
memory/1484-24-0x0000000000400000-0x000000000042D000-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