Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 14:41

General

  • Target

    81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8.exe

  • Size

    460KB

  • MD5

    d8d4b212198b30c95fcf138c34ec7a5e

  • SHA1

    edd8e5c142f62e1f195380184593ef353b1d447b

  • SHA256

    81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8

  • SHA512

    d8eb409287006518d8c4116a6479a8243b345ec8be34b2fcebfde85e1724487a94bd8fe4c7e68884a7ec01d483ad5f283517d543f203abf73cb031c0b5280a6d

  • SSDEEP

    6144:k9prUR/P3RLw/GzrS+Rb+c8JcoBQ+i4NOEhBeBhyboy:ogR/PBc/GzrVb+/5GC7hBeBhyx

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\81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8.exe
    "C:\Users\Admin\AppData\Local\Temp\81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8.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:1156
    • C:\Users\Admin\AppData\Local\Temp\3582-490\81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8.exe"
      2⤵
      • Executes dropped EXE
      PID:1220

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\81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8.exe
    Filesize

    420KB

    MD5

    a562a78ca45eba49d3b12bf4f3db498e

    SHA1

    cc44144a4f1e964cdb87c9e4e96991d3700acdd0

    SHA256

    981fc53cadbb22cd7a86956db589b6174fac03a86f7665a753d768e7577f7de7

    SHA512

    62c2e53a6a140688e043a72fa0caa3df345c412af2c85e70ed2ca5ba46c1ab42983f94c121ade64bef4e8bb132c248f69013e0d56af5b98d2b879dcf9987297a

  • C:\Users\Admin\AppData\Local\Temp\3582-490\81eeabb0b173f319befcc33187d62053509d7e96fb13f51aaef4f1ef841317b8.exe
    Filesize

    420KB

    MD5

    a562a78ca45eba49d3b12bf4f3db498e

    SHA1

    cc44144a4f1e964cdb87c9e4e96991d3700acdd0

    SHA256

    981fc53cadbb22cd7a86956db589b6174fac03a86f7665a753d768e7577f7de7

    SHA512

    62c2e53a6a140688e043a72fa0caa3df345c412af2c85e70ed2ca5ba46c1ab42983f94c121ade64bef4e8bb132c248f69013e0d56af5b98d2b879dcf9987297a

  • memory/1220-132-0x0000000000000000-mapping.dmp