Analysis

  • max time kernel
    157s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    04-06-2022 16:36

General

  • Target

    5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2.exe

  • Size

    485KB

  • MD5

    0f22fa598186b77206257e48df59c1b0

  • SHA1

    55f314ea87198c4cdd14f0533513007ab9fecff1

  • SHA256

    5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2

  • SHA512

    415ca421f36c592404dba4ac15c46975a5183c45482978170392358eaa8f3d205ac9e6cc67ba278c75e8cd1be91a85eecd8d96645cb9c508475c59bd1a75e4f1

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Drops file in Drivers directory 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2.exe
    "C:\Users\Admin\AppData\Local\Temp\5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      PID:3752

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2.exe
    Filesize

    445KB

    MD5

    6f95dc503d3f0dc77f8ba4f64b3d0ca4

    SHA1

    f42bb157d3a559dc211c21925f4b4244ad915557

    SHA256

    be79c9f248a9cad2aaba6b566f41eb71225c8e3fc23c337f1564502432a50ad5

    SHA512

    a5af40c0923dc332c25eb3a2bb6b1b178552a4f9b33bc0017410624961775873381faed0a339eab404792cfc18f0f0f1efc4d91e662871f56b3cd22a08905b1a

  • C:\Users\Admin\AppData\Local\Temp\3582-490\5422d397bd31b9c002bb0a9dec0d718720ebf20034a81421b1725a8360a517a2.exe
    Filesize

    445KB

    MD5

    6f95dc503d3f0dc77f8ba4f64b3d0ca4

    SHA1

    f42bb157d3a559dc211c21925f4b4244ad915557

    SHA256

    be79c9f248a9cad2aaba6b566f41eb71225c8e3fc23c337f1564502432a50ad5

    SHA512

    a5af40c0923dc332c25eb3a2bb6b1b178552a4f9b33bc0017410624961775873381faed0a339eab404792cfc18f0f0f1efc4d91e662871f56b3cd22a08905b1a

  • memory/3752-130-0x0000000000000000-mapping.dmp