Analysis

  • max time kernel
    89s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 10:35

General

  • Target

    101bd45ab673fd6547386dff4339f1649e61b9f5c318260d365f766fbdc2d3c9.exe

  • Size

    1005KB

  • MD5

    427eba9f6ff2cd312c72770f13e279c1

  • SHA1

    221e45064829d5ca7852aa5421d5284986916d93

  • SHA256

    101bd45ab673fd6547386dff4339f1649e61b9f5c318260d365f766fbdc2d3c9

  • SHA512

    2101d82c1e4536536410de403bbe5b438a3688690fd3108f3c4ffc7fca90be4888b7ba088f648c68089e28e9729385ac2299d2d087f04590ff7fe6d97beb557b

  • SSDEEP

    12288:wbWIqB/A1gv9XQ7ZNlZDV3LEWI+Xx+uBW6y4qNmhA9:wbyxv9XQ7B3oWI+XHW6y449

Malware Config

Extracted

Path

C:\Program Files (x86)\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 - 6188-EA-ABYW-YGRG - 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.

  • Process spawned unexpected child process 1 IoCs

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

  • Renames multiple (8331) files with added filename extension

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

  • 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.

  • Drops desktop.ini file(s) 31 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\101bd45ab673fd6547386dff4339f1649e61b9f5c318260d365f766fbdc2d3c9.exe
    "C:\Users\Admin\AppData\Local\Temp\101bd45ab673fd6547386dff4339f1649e61b9f5c318260d365f766fbdc2d3c9.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4792
  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -Command "Get-WmiObject Win32_Shadowcopy | Remove-WmiObject"
    1⤵
    • Process spawned unexpected child process
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4680
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    f48c227d88c6d8494bf4c0d16c45b628

    SHA1

    6c75df63868b452a1f8ac232fa234a5cc501c815

    SHA256

    99ea24c4f3fe31c7e3bbf05d99058492980451a522fd6f260c920fbb4f19433d

    SHA512

    863bcc41c912717ccc5f86350f0525f24d88fb4644f1c3324e6dbd59ccbf295966a18278f7e3c6477c66e8a8104c8cc76ea2fbc5f0f7d75c1738b29ca97132c4

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

    Filesize

    3KB

    MD5

    08fadb7a9c269c81e755f8a335539739

    SHA1

    1b8811db545588b25eb9942ce7e75753220ed420

    SHA256

    d70452827e79ab90c786f0fb3c3ed4067488bc7ce7476a1dc74df49bd77d69ec

    SHA512

    2b0eeb85a1df8d483c5822134bdcc2fb099b4e4bc9bc83260d7f7bcebae997734bd4494bd266d3788e38b360a73f2891499ee5b375be0a3f50f504a28b3c2767

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zrctxb4m.ihq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4680-0-0x00000238984B0000-0x00000238984D2000-memory.dmp

    Filesize

    136KB

  • memory/4680-10-0x00007FF9BFAE0000-0x00007FF9C05A1000-memory.dmp

    Filesize

    10.8MB

  • memory/4680-11-0x00000238B0A70000-0x00000238B0A80000-memory.dmp

    Filesize

    64KB

  • memory/4680-14-0x00007FF9BFAE0000-0x00007FF9C05A1000-memory.dmp

    Filesize

    10.8MB