Overview

overview

10

Static

static

3

win_locker.ex_.exe

windows7-x64

10

win_locker.ex_.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-09-2024 15:00

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General

  • Target

    win_locker.ex_.exe

  • Size

    1.0MB

  • MD5

    4aecef9ddc8d07b82a6902b27f051f34

  • SHA1

    8ad1b4ed98794e8f0a9a9d6fc161697974099d91

  • SHA256

    988776358d0e45a4907dc1f4906a916f1b3595a31fa44d8e04e563a32557eb42

  • SHA512

    605fb600668cbadb0f556589f923209def1cd3c51b123f4ce7a5325722bcca05f6bb3b26bf7a6aa52bffabe6129c508b302e85ee0a120bedd96a71a105eae437

  • SSDEEP

    12288:Vpp+QIEmDzuImC01vbUE98pik+2i1NkshdMMK+AX99etq2dTdYf:Vpp+Q+u5bUI8pij1NkshdMf99etb5m

Score
10/10
akiraexecutionransomwareransowmwarespywarestealer

Malware Config

Extracted

Path

C:\PerfLogs\Admin\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.

  • Renames multiple (8656) files with added filename extension

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

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

    Run Powershell command to delete shadowcopy.

    executionransowmware
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 47 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 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\win_locker.ex_.exe
    "C:\Users\Admin\AppData\Local\Temp\win_locker.ex_.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2516
  • 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
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1960
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PerfLogs\Admin\akira_readme.txt
    Filesize

    2KB

    MD5

    e158265e513c5b865b19240370d4cb81

    SHA1

    4a37838237b622bc8f6049cf62573d7ed69b1a25

    SHA256

    f13ffbbdf446bb88a48de8162406b9b2f97cde15a27ce007a156f4dbd028fb2a

    SHA512

    dd8e241126d131f4d3d4c3936ccb06eef955258573c7337a241cb93fea66e41324caae2ced4548b9e69c7427f3649d134f670607e0e65a13bdaa61b3381cbb34

    Download Submit

  • memory/1960-4-0x000007FEF5AAE000-0x000007FEF5AAF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1960-5-0x000000001B4D0000-0x000000001B7B2000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/1960-6-0x0000000002690000-0x0000000002698000-memory.dmp

    Filesize

    32KB

    Download

  • memory/1960-7-0x000007FEF57F0000-0x000007FEF618D000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/1960-8-0x000007FEF57F0000-0x000007FEF618D000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/1960-9-0x000007FEF57F0000-0x000007FEF618D000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/1960-10-0x000007FEF57F0000-0x000007FEF618D000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/1960-11-0x000007FEF57F0000-0x000007FEF618D000-memory.dmp

    Filesize

    9.6MB

    Download

  • memory/1960-12-0x000007FEF57F0000-0x000007FEF618D000-memory.dmp

    Filesize

    9.6MB

    Download