Overview

overview

10

Static

static

3

win32_locker.ex_.exe

windows7-x64

10

win32_locker.ex_.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    96s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-09-2024 15:51

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General

  • Target

    win32_locker.ex_.exe

  • Size

    879KB

  • MD5

    2a7a76cde7e970c06316e3ae4feadbe3

  • SHA1

    89d195f59bba9c3b43635607f9f1c3051645332c

  • SHA256

    2c7aeac07ce7f03b74952e0e243bd52f2bfa60fadc92dd71a6a1fee2d14cdd77

  • SHA512

    834f76c0de678d26507fa1a3446cf6336952d36bd2857113f1bbaddf0d33132d4c579bfd232194868c8dc4ddefa66a9c589610e74f4a808787b8edf36f3d5b4f

  • SSDEEP

    24576:dpN2CMwVhLcqnB+c9z2Va31qIU2p1GA3zaIJYj9+M+C6vU1KKoPAFGG+TR3aZX:UC5Uqn4c9z2Vu1qIU2pAA3rM+C6vZJAp

Score
10/10
akiracredential_accessdiscoveryexecutionpersistenceransomwareransowmwarespywarestealer

Malware Config

Extracted

Path

C:\Program Files (x86)\Adobe\akira_readme.txt

Family

akira

Ransom Note
Hi friends, Whatever who you are and what your title is if you're reading this it means the internal infrastructure of your company is fully or partially dead, all your backups - virtual, physical - everything that we managed to reach - are completely removed. Moreover, we have taken a great amount of your corporate data prior to encryption. Well, for now let's keep all the tears and resentment to ourselves and try to build a constructive dialogue. We're fully aware of what damage we caused by locking your internal sources. At the moment, you have to know: 1. Dealing with us you will save A LOT due to we are not interested in ruining your financially. We will study in depth your finance, bank & income statements, your savings, investments etc. and present our reasonable demand to you. If you have an active cyber insurance, let us know and we will guide you how to properly use it. Also, dragging out the negotiation process will lead to failing of a deal. 2. Paying us you save your TIME, MONEY, EFFORTS and be back on track within 24 hours approximately. Our decryptor works properly on any files or systems, so you will be able to check it by requesting a test decryption service from the beginning of our conversation. If you decide to recover on your own, keep in mind that you can permanently lose access to some files or accidently corrupt them - in this case we won't be able to help. 3. The security report or the exclusive first-hand information that you will receive upon reaching an agreement is of a great value, since NO full audit of your network will show you the vulnerabilities that we've managed to detect and used in order to get into, identify backup solutions and upload your data. 4. As for your data, if we fail to agree, we will try to sell personal information/trade secrets/databases/source codes - generally speaking, everything that has a value on the darkmarket - to multiple threat actors at ones. Then all of this will be published in our blog - https://akiral2iz6a7qgd3ayp3l6yub7xx2uep76idk3u2kollpj5z3z636bad.onion. 5. We're more than negotiable and will definitely find the way to settle this quickly and reach an agreement which will satisfy both of us. If you're indeed interested in our assistance and the services we provide you can reach out to us following simple instructions: 1. Install TOR Browser to get access to our chat room - https://www.torproject.org/download/. 2. Paste this link - https://akiralkzxzq2dsrzsrvbr2xgbbu2wgsmxryd4csgfameg52n7efvr2id.onion. 3. Use this code - 6729-HK-NIZN-WOPQ - to log into our chat. Keep in mind that the faster you will get in touch, the less damage we cause.
URLs

https://akiral2iz6a7qgd3ayp3l6yub7xx2uep76idk3u2kollpj5z3z636bad.onion

https://akiralkzxzq2dsrzsrvbr2xgbbu2wgsmxryd4csgfameg52n7efvr2id.onion

Signatures

  • Akira

    Akira is a ransomware first seen in March 2023 and targets several industries, including education, finance, real estate, manufacturing, and consulting.

    ransomwareakira
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer
  • Renames multiple (9252) files with added filename extension

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

    ransomware
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell command to delete shadowcopy.

    executionransowmware
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 8 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\win32_locker.ex_.exe
    "C:\Users\Admin\AppData\Local\Temp\win32_locker.ex_.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5096
  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -Command "Get-WmiObject Win32_Shadowcopy | Remove-WmiObject"
    1⤵
    • Process spawned unexpected child process
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1864
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:404
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:380

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Adobe\akira_readme.txt
    Filesize

    2KB

    MD5

    e158265e513c5b865b19240370d4cb81

    SHA1

    4a37838237b622bc8f6049cf62573d7ed69b1a25

    SHA256

    f13ffbbdf446bb88a48de8162406b9b2f97cde15a27ce007a156f4dbd028fb2a

    SHA512

    dd8e241126d131f4d3d4c3936ccb06eef955258573c7337a241cb93fea66e41324caae2ced4548b9e69c7427f3649d134f670607e0e65a13bdaa61b3381cbb34

    Download Submit

  • C:\ProgramData\Microsoft\Windows\Caches\{DDF571F2-BE98-426D-8288-1A9A39C3FDA2}.2.ver0x0000000000000001.db.akira
    Filesize

    623KB

    MD5

    62679a0824401418badb34878df1ef84

    SHA1

    200e78e4b19d86ae58152496b4d757065d4e4ebe

    SHA256

    ece54ece7c3e383b1cd755f065f3b5b0bd5722aa60de78a78ae217b3b2969655

    SHA512

    10c5ab5383bf4467a2e337700f383b699e42282fd48a8093b8ab0efe38b727d057521ed138594c25a7825b7704d5ffaa0ac7bf0d9a21a419594b616592d00d12

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
    Filesize

    3KB

    MD5

    a460f0e6609660cbd67720a6fcd47e97

    SHA1

    dda2829b73ec675a28549140bb9e42b5ca5ed88c

    SHA256

    388c4294a34b28feda6077ff2ea51bed2fe683fcd2fe6b786836095e254e02a3

    SHA512

    6090bfa23fd0b5157b0eef84978407d282bcb3d66164e3279aa42172156a07f6a0081f4ae2c2d5c959b020a33175164de8a8da0aef90b8c37f6718df56f62ca4

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    Filesize

    576B

    MD5

    7b0657d55c8cd659652fef8a8d562612

    SHA1

    39ebe01a172f8f51c0a8f17331211f7b0d32a600

    SHA256

    bca98307c3d90934f8cf5673866fdb465a62fce40d5891ff6e17e50c43de233f

    SHA512

    f5064741aa615657c114ae2726dfca4572a28f6a5f708f8e13dc6b6d94972428dc0051c9fe76b0556750b59d326449c6f0a53da4fb6e688ebb8105807527a2db

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lal155nc.lxt.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    Download Submit

  • memory/1864-0-0x00007FFD1A743000-0x00007FFD1A745000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1864-1-0x000001D3C8DE0000-0x000001D3C8E02000-memory.dmp

    Filesize

    136KB

    Download

  • memory/1864-11-0x00007FFD1A740000-0x00007FFD1B201000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1864-12-0x00007FFD1A740000-0x00007FFD1B201000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1864-15-0x00007FFD1A740000-0x00007FFD1B201000-memory.dmp

    Filesize

    10.8MB

    Download