Overview

overview

9

Static

static

3

60c24a4c6b...JC.exe

windows7-x64

9

60c24a4c6b...JC.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2023 08:45

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General

  • Target

    60c24a4c6b54b1f4baeaee585e5e2486bbd3ab4733de36bb28da1fdb20596e21exe_JC.exe

  • Size

    138KB

  • MD5

    7c055e203155b749a047987736400bfc

  • SHA1

    17f48b45920e1f3e6581e60b0ed346b5770e8363

  • SHA256

    60c24a4c6b54b1f4baeaee585e5e2486bbd3ab4733de36bb28da1fdb20596e21

  • SHA512

    8bccbac3f0e761ef19c7a97e7474ac9dc68ac58d4bdfbe095a4778400d2655b2a98d70c301c47f7cb072e77b3e3fde07a0c9a39c151908be5f7c47e1d5f24cb7

  • SSDEEP

    3072:UPgv1uTga8za7/aApO6fCR6kMgNjTX8jI8VD/dJJO04aN5uvvmRE7xIxT62Br09Q:oKZTMPVDdzR1N5sAxBN9dRd

Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (9336) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

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

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2596
  • C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    1⤵
    • Interacts with shadow copies
    PID:2916
  • C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2600
  • C:\Users\Admin\AppData\Local\Temp\60c24a4c6b54b1f4baeaee585e5e2486bbd3ab4733de36bb28da1fdb20596e21exe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\60c24a4c6b54b1f4baeaee585e5e2486bbd3ab4733de36bb28da1fdb20596e21exe_JC.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2492

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\ProgramData\FILE ENCRYPTED.txt
    Filesize

    334B

    MD5

    e4f855abc55b2bf304a66216e13c5ad8

    SHA1

    d72d90394f74a14a6cb27814a45575a322462fce

    SHA256

    e75a145c45cb21c0fa7df0b323b80a49e9e4cf4fe3901461fe521aa52e5ea87c

    SHA512

    85ff88a7a2a7a1d35c873e04084964b5ab74784144dfaca4c57b929ceddb8c6ecda5996877d95658544788b76d0dd98c218361c8884801672d93f81f6db087f8

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