Overview

overview

10

Static

static

10

3259b14afa...c8.exe

windows7_x64

10

3259b14afa...c8.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    11s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 15:20

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General

  • Target

    3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8.exe

  • Size

    2.6MB

  • MD5

    06aa043b17671183d31d942be4fd9948

  • SHA1

    2ea50404583fa90e00b2c024db431050c54f0aec

  • SHA256

    3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8

  • SHA512

    501ac54a761710a0c1e8dbc51dc9474cea3f5ca04c549c037172fb3b10b55e386b81fc23eff9c650d95ef040c22f2e6ac00062f9eec0f84844a4773549efb268

Score
10/10
neshtapersistencespyware

Malware Config

Signatures

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

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

    persistencespywareneshta
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8.exe
    "C:\Users\Admin\AppData\Local\Temp\3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4088

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Change Default File Association

1
T1042

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8.exe
    Filesize

    303KB

    MD5

    763433a50cf01ade5407448bae5e80e7

    SHA1

    11f1339c0471a53a9df83fba6447f6bc9e994fef

    SHA256

    b3da15b475333fab5dd90f4ff82853624395d82f2c363d9a518a203d2e138588

    SHA512

    34acde2af6728eb232c372247efc4fdfd42acb1333c4a7d999caa125dd8647149ee22b514797d89abdc2ef936694f37f82a3c4616fc3cb716e2b33db22c30179

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  • C:\Users\Admin\AppData\Local\Temp\3582-490\3259b14afa254128715da19fcd86313c0740b154aff3d6a0b6e3d0f7b96607c8.exe
    Filesize

    238KB

    MD5

    821e67648cd0ca22e2b1ab02a5777be9

    SHA1

    5182801974f6da24540e234c25728c3c8a73e2f4

    SHA256

    14a8b9d08106fef7be284e152130d17aa6d04945c6276d83bccffb7e80371e80

    SHA512

    803742c1930c3a8e033adcba186216fad1342487b96c954be4281382bc64ddb95e6adab7a8108e936868d2942eaf032914bee839735ffc3b4a46b51d287fa3d0

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  • memory/4088-130-0x0000000000000000-mapping.dmp
    Download