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Analysis

  • max time kernel
    77s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2025, 16:01

General

  • Target

    2025-03-07_834d44a077ef00f7b27c64998d8553a9_akira_cobalt-strike.exe

  • Size

    1.0MB

  • MD5

    834d44a077ef00f7b27c64998d8553a9

  • SHA1

    8b941cb9ab2e5d93c9484f29136fdb579c11c7cd

  • SHA256

    e7a44ea5adc366e7600623e7ff433d57cf3ba0bfac8171899497fec6c8a28acc

  • SHA512

    e4d7b33e117161622b04b1622eddac2c17927dfb3ac919192367babf95b16dd69a512e8a96e08694bf094b6a147284955d37ed507550d4ff21ce24b95ba8f19c

  • SSDEEP

    24576:FTyLPsJjVjzhWwiENiUGC86pNV2GNxgr+oBwGxGs:FTyLPsJjVjzliE0opNV2G7gr+o+GT

Malware Config

Extracted

Path

C:\Program Files\7-Zip\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/d/3128244783-SKWFO 3. Use this code - 6490-RC-CJJU-IVKS - 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/d/3128244783-SKWFO

Signatures

  • Akira

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

  • Akira family
  • Process spawned unexpected child process 1 IoCs

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

  • Renames multiple (8823) files with added filename extension

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell command to delete shadowcopy.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 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\2025-03-07_834d44a077ef00f7b27c64998d8553a9_akira_cobalt-strike.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-07_834d44a077ef00f7b27c64998d8553a9_akira_cobalt-strike.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2364
  • 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:2904
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4920

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\7-Zip\akira_readme.txt

    Filesize

    2KB

    MD5

    20e84c27f16e342bfcb57e5a980b1c0d

    SHA1

    eb44c723bcb323c2ce0cedf54ad1d6a76697e43a

    SHA256

    3d7d6237e988d65b5fa5ac4dbce2700c4c8b2b252aca9f15e10aac3b2bdb4d58

    SHA512

    0695a814de090e229290c787f1a3fa423a926444b961a49a5ffe8107f631555d459d829a3883460a13ce2d3c0f2bd49bb36f9fc856fa9fef3e2461edd139c75d

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

    Filesize

    3KB

    MD5

    a44a1a7066f3926b417cf0fe544c8e88

    SHA1

    310e6cc4db4dd32e91dc179bdfdc7fb71e61ea61

    SHA256

    2a6cd83a665c1f63ac43beffdcb2a4a79f8402746ad0a7c5106a7a50dd91b3e1

    SHA512

    3ba69166abde3573fcd19d921067e72c17703782cdef28ebda6ffa1c2f5ebb124d8315fd90aa8817573ccdf89b7490d9c4f110911a15a98c994581828974f004

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eqy2uwhb.o5j.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2904-0-0x00007FFCA43C3000-0x00007FFCA43C5000-memory.dmp

    Filesize

    8KB

  • memory/2904-11-0x000001B2E3FC0000-0x000001B2E3FE2000-memory.dmp

    Filesize

    136KB

  • memory/2904-10-0x00007FFCA43C0000-0x00007FFCA4E81000-memory.dmp

    Filesize

    10.8MB

  • memory/2904-12-0x00007FFCA43C0000-0x00007FFCA4E81000-memory.dmp

    Filesize

    10.8MB

  • memory/2904-15-0x00007FFCA43C0000-0x00007FFCA4E81000-memory.dmp

    Filesize

    10.8MB