291d5441b266bfbd219043a3b9ac484525e79911792fba2d8401cba0207d9d0e

Resubmissions

27/03/2025, 13:47

250327-q3kjqasxct 10

Analysis

max time kernel
3s
max time network
6s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2025, 13:47

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General

Target

WinAuthx32.exe
Size

1.1MB
MD5

d2f9a2c6cecae6184fd12f0fca835433
SHA1

81030ac06f16d76cb4204963923cdf2f27913714
SHA256

291d5441b266bfbd219043a3b9ac484525e79911792fba2d8401cba0207d9d0e
SHA512

93392e8c1f7fb5b1e3cfab92ec1eceee3eabc3db73eadcbfb9c0cc2bef87ea5fb0f035c389b7af243df9020673156b0473cb6edc8d5c71ce3e9c4e2110e08150
SSDEEP

24576:u2G/nvxW3WieCqgt5UOOs7sxXfmRm+vBhx5dv:ubA3j75JsK3x3

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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	WinAuthx32.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 2 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	WinAuthx32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000_Classes\Local Settings	WinAuthx32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 5344	4352	WinAuthx32.exe	87
PID 4352 wrote to memory of 5344	4352	WinAuthx32.exe	87
PID 4352 wrote to memory of 5344	4352	WinAuthx32.exe	87

C:\Users\Admin\AppData\Local\Temp\WinAuthx32.exe
"C:\Users\Admin\AppData\Local\Temp\WinAuthx32.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Surrogatewinhostmonitordhcp\wxRxOc10fSIm2kfzTZ.vbe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5344

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

Replay Monitor

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Downloads

C:\Surrogatewinhostmonitordhcp\wxRxOc10fSIm2kfzTZ.vbe

Filesize
226B

MD5
5ffd41cbec6a6d6a0ff79804df9e1e57

SHA1
b62f9545777a908b0b2134ebccae0ee788eb52d3

SHA256
c597e507bc0d72d57996850f3a8cd97b986fe032e1e1affb7789a4c00dd52e6d

SHA512
027da94ebd9b00790caa297bee9d2a5fc7156a9f2cae9866a5ddd3178eb344b20b3922ac78b693901e75ae4be9033459deba0f9a60154d826e13d1cb056f26fa

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