Overview

overview

10

Static

static

bff2bf4933...bb.exe

windows7-x64

10

bff2bf4933...bb.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    309s
  • max time network
    376s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 00:19

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General

  • Target

    bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe

  • Size

    216KB

  • MD5

    2b109e310349ac6476fac279239c53e0

  • SHA1

    c44a85b0d9c78035c77c6e2bf90e17dd3eba8f6a

  • SHA256

    bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb

  • SHA512

    2f33954ae7e563f55730a05ba07e30e44d7dcec40b27a6352182376173854a27870dd8879ba35f20fb91381e90c44e2f42ae1a4d4d14b16650635014707e67e4

  • SSDEEP

    3072:mFvdlkZboHFGFooobAqzNOEbOKZbtpGPsLxf:mFvzNPseNmKJtpLf

Score
10/10
evasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 25 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe
    "C:\Users\Admin\AppData\Local\Temp\bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4428
    • C:\Users\Admin\jiouw.exe
      "C:\Users\Admin\jiouw.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4332

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
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\jiouw.exe
    Filesize

    216KB

    MD5

    3687e61deac5609bfad8f7ce4566312d

    SHA1

    d5368d25d49b06e3d31d640f38c4d81d2895323d

    SHA256

    1f846a698ed3edeb496bd27515e51d9600f81b42487a61514f2bd45cebd96100

    SHA512

    f0ddbf183d80cbced73fbaa9a1e943e0374828e8e84850e293301406b02f5300b30ad3d541e0679ad7dfbabb3f8d3fb784eaf95494f8fa966fd758481508ffbc

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  • C:\Users\Admin\jiouw.exe
    Filesize

    216KB

    MD5

    3687e61deac5609bfad8f7ce4566312d

    SHA1

    d5368d25d49b06e3d31d640f38c4d81d2895323d

    SHA256

    1f846a698ed3edeb496bd27515e51d9600f81b42487a61514f2bd45cebd96100

    SHA512

    f0ddbf183d80cbced73fbaa9a1e943e0374828e8e84850e293301406b02f5300b30ad3d541e0679ad7dfbabb3f8d3fb784eaf95494f8fa966fd758481508ffbc

    Download Submit
  • memory/4332-134-0x0000000000000000-mapping.dmp
    Download