upatre | 228c13978462a72c4abe3f3b3159432c761478b855a9175f76e2ac794027340c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28-05-2024 17:25

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General

Target

virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe
Size

4KB
MD5

b07a6671f8bfb6853c6a6ee4d3976d00
SHA1

e1fc693d730c1e3b3772af9c1c16e35a3afa16b7
SHA256

228c13978462a72c4abe3f3b3159432c761478b855a9175f76e2ac794027340c
SHA512

3e70f4432bf9f07c7af68aa9aa9e8231b52ffdae39e440707106b51a9a6f885e8519788afa4a329640e6c03f69bfebeb810fac21844ec7d941e09dbc87a09103
SSDEEP

48:Zdni+Wyi18DN0nCvTaE6nc9fhXcGEY3sJd9ga91RsNIJN6nA7B8mOo4jUx7OtKGa:Z0v4mUWKh9ctgC1ReIJN6nKymV44Shy/

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

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

Processes:

virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe

Executes dropped EXE 1 IoCs

Processes:

szgfw.exe

pid	Process
3528	szgfw.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe

description	pid	Process	procid_target
PID 4728 wrote to memory of 3528	4728	virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe	82
PID 4728 wrote to memory of 3528	4728	virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe	82
PID 4728 wrote to memory of 3528	4728	virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe	82

C:\Users\Admin\AppData\Local\Temp\virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_b07a6671f8bfb6853c6a6ee4d3976d00.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:3528

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
4KB

MD5
b93ce5fc01cd99239598ab6f5cc8c448

SHA1
9fdc35a3b84623408670fa17b466fd9d33b3ecaf

SHA256
6448cc4b1e09227c44261f8fd7da4300bd1b256f646c3d9e5bed6590d0f8dd50

SHA512
f2915f2fdae27be5bcc374f822bd522902fda90d9cda1e293b88e7ba3f8eeb5b8abb889375c8d0e3cdad7b32c1d01a611d40d269c24b60e692e8addfb1ae9386

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