ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5c

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 13:54

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General

Target

ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe
Size

154KB
MD5

bd099b79279d97ef33e3e2701d1c6c60
SHA1

6e1ae7cb3be30f3cbdb2293e17d3305479af3755
SHA256

ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5c
SHA512

0fe5ea10685553c2fa566b45cca652a9312154e583f30d7734746333d8e2527f8f73dacb75f5b0eb3ceb15cebfe3ee3ba318cbbd43379b4bdb4c9ff80b68d41b
SSDEEP

3072:Ntbqvi9nMKxQbZ5x66EfACsxfcYvQd2OeS:Nt2vsx+AV4LfLOR

Score

7^/10

discovery

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe

Executes dropped EXE 1 IoCs

pid	Process
4744	biudfw.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 4744	944	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe	84
PID 944 wrote to memory of 4744	944	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe	84
PID 944 wrote to memory of 4744	944	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe	84
PID 944 wrote to memory of 4012	944	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe	85
PID 944 wrote to memory of 4012	944	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe	85
PID 944 wrote to memory of 4012	944	ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe	85

C:\Users\Admin\AppData\Local\Temp\ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe
"C:\Users\Admin\AppData\Local\Temp\ecf24d1e9ea91661f99a8dcecc826b1d0c79f2a02cd1aee98d45669638658c5cN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:944
- C:\Users\Admin\AppData\Local\Temp\biudfw.exe
  "C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4744
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4012

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\biudfw.exe

Filesize
154KB

MD5
0a0d25ec68a6ed4372531aa523c5a358

SHA1
3a818afbbfe2be02e1b3ea49227f022a6274f0cd

SHA256
0ed66967cf1ec6eda9e3f733c7ec8649fdc4d730228de1cfcfa303037a84dba1

SHA512
38eaee085d3d2fc6a97373312be189e80b6140e41d412bd4b05b2268718e6fa622bc7c5ebe408e23152a603aa29f458a23a262a6a69c3c6806d1bdf64f1b724e

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C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

Filesize
512B

MD5
2930c042c9ee5e07f321f2134a0c7edc

SHA1
ee39f41eaf6ce3c8d917a89e65959414ae0088e6

SHA256
a328475bbb730da292b83ed6cabbdbfc0616f042296f0c6fa356c5368ffc1309

SHA512
2da91d5effc116d8c8661c2a99f1d9c2aaffda0f776551dc7ad1911fdb2765591e5b441b9a1fe0090bcda8ed24d180b563ed2c127676cf1de40001e4b15b5506

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C:\Users\Admin\AppData\Local\Temp\sanfdr.bat

Filesize
340B

MD5
faf327843e5f9fa9929675de5bf7174c

SHA1
08b3dd34478b8b28f375e8295b8a37a00417647d

SHA256
66f309b291522027f8c7307a35db25c042a2ab5adad2c7d1685a21ee92ffa1f6

SHA512
498b3ec88f48e02de8cfc93164c77c60d7b588a50a4f6f4e9d8e92aa0462cb12a2968747107d5eb5644fa8c58d92fcd6c7b41171dfa8010b4551ceadcb930776

Download Submit