e4dae7a406ad8b52632f55295e66bae6722ba69c60def1ea1a160cc9c4a13c5e

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2023, 22:05

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General

Target

b141d4c4a3fe6fc80c8a3cdc6373526b.exe
Size

236KB
MD5

b141d4c4a3fe6fc80c8a3cdc6373526b
SHA1

f12a07b0a23c55677566aeef93a0a0f00a7f2bcc
SHA256

e4dae7a406ad8b52632f55295e66bae6722ba69c60def1ea1a160cc9c4a13c5e
SHA512

d7bf73d47cce33bd3eaa11dbfb4e31fc1c0159a12950eb53fe201563bfb011fe69eaccdce2cd384e5a7c3aaabeedc2df4a1cbd02bd21c741c2d264bea3269b5b
SSDEEP

3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/8583k/kgnYHfl:o68i3odBiTl2+TCU/8Gk/k8KfQlE7

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"	b141d4c4a3fe6fc80c8a3cdc6373526b.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SHARE_TEMP\Icon3.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\bugMAKER.bat	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\winhash_up.exez	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\SHARE_TEMP\Icon7.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File opened for modification	C:\Windows\winhash_up.exez	b141d4c4a3fe6fc80c8a3cdc6373526b.exe
File created	C:\Windows\winhash_up.exe	b141d4c4a3fe6fc80c8a3cdc6373526b.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
2916	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 2916	3968	b141d4c4a3fe6fc80c8a3cdc6373526b.exe	88
PID 3968 wrote to memory of 2916	3968	b141d4c4a3fe6fc80c8a3cdc6373526b.exe	88
PID 3968 wrote to memory of 2916	3968	b141d4c4a3fe6fc80c8a3cdc6373526b.exe	88

C:\Users\Admin\AppData\Local\Temp\b141d4c4a3fe6fc80c8a3cdc6373526b.exe
"C:\Users\Admin\AppData\Local\Temp\b141d4c4a3fe6fc80c8a3cdc6373526b.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3968
- 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:2916

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
55663a7ff496d07a78b1827c0a628629

SHA1
45c52e24104790c6f6e85bca74361f8a2b5ade33

SHA256
ae1d27432af09177a872d8bf1182509cfb66ef5fce9de027ce486caa55117937

SHA512
17df0eae7f261e7b0f0799ffa574edfd1155c7ff4766fc648670148a506185004352777b246b7b9fe0292a75c4a6a22c3fb2723e874e6aff95204b70ff4868a2

Download Submit
memory/3968-24-0x0000000000400000-0x000000000042D000-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