Analysis

  • max time kernel
    170s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 11:22

General

  • Target

    71c26db43a1522a5c211d75e97e8f300f8791fdeb55f94e8da495e219edc921d.exe

  • Size

    1012KB

  • MD5

    21e5ba44859b6cb317cf86a55c696d90

  • SHA1

    13609821e3bd39a7fe6eb06b9d46c4bdc02f8330

  • SHA256

    71c26db43a1522a5c211d75e97e8f300f8791fdeb55f94e8da495e219edc921d

  • SHA512

    d7ab7ea146a8b3155b5d00e1ae5a1511eaec51ea2311f2390be06b8ef94f9ded67c602a6df13bc0a54acd5f75e371e9cce756a6197ed9307ecbd6ea3d1e346f4

  • SSDEEP

    12288:T6y2PbZkOrnhK0hOo0+wtGD9DmZYpmNvvtvlmuTfatbyUJiyOP:T6lPPrnhbhx8GD9D0YQ9vlvcJi9P

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.

  • 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71c26db43a1522a5c211d75e97e8f300f8791fdeb55f94e8da495e219edc921d.exe
    "C:\Users\Admin\AppData\Local\Temp\71c26db43a1522a5c211d75e97e8f300f8791fdeb55f94e8da495e219edc921d.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:1208
    • C:\Users\Admin\AppData\Local\Temp\3582-490\71c26db43a1522a5c211d75e97e8f300f8791fdeb55f94e8da495e219edc921d.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\71c26db43a1522a5c211d75e97e8f300f8791fdeb55f94e8da495e219edc921d.exe"
      2⤵
      • Executes dropped EXE
      PID:2880

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\71c26db43a1522a5c211d75e97e8f300f8791fdeb55f94e8da495e219edc921d.exe
    Filesize

    971KB

    MD5

    de5f42ec251dbf65ebe61352e20ae904

    SHA1

    00ca64fdc6dbe35b6e8d706b8195d87f8dabdffe

    SHA256

    1761b8ace235dbcf9c0748b87fef5d8acc8c53ff2598499bf7cfbc36d71e1177

    SHA512

    6fe629a91286652733bdd7a394d6b203b52b6104336d271f48396ccb6e19b76f17b5a2c50e95b59409e04a39154bfa6618653abbe8a6fb91ee0f0b29cfd91160

  • memory/2880-132-0x0000000000000000-mapping.dmp