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Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20250207-en
  • resource tags

    arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
  • submitted
    12/03/2025, 01:37

General

  • Target

    2025-03-12_7113bd6ad83f3c3f71f69728588ab256_akira_cobalt-strike.exe

  • Size

    1.0MB

  • MD5

    7113bd6ad83f3c3f71f69728588ab256

  • SHA1

    701ad5279bdea265a59211cec636d1cd7478d12d

  • SHA256

    0ab9e88f2135f7fbd439435f0ff4da887bbfb1cae67ccc8209aac22e75e3486f

  • SHA512

    20c01f9e0e6bbe481b720ac5bd0e1bb3f97a206feb89bb06087e55f38f600d0cb8320072f9cbad30b3b1d055ddd5ef194c024c69035c407e035f1af1a0fc4a1a

  • SSDEEP

    24576:FTyLPsJjVjzhWwiENiUGC86pNV2GNxgr+oBwG4Gs:FTyLPsJjVjzliE0opNV2G7gr+o+GC

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/d/0753585216-AFZCX 3. Use this code - 9996-WZ-SLDU-OEEQ - 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/0753585216-AFZCX

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 (8621) 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) 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-12_7113bd6ad83f3c3f71f69728588ab256_akira_cobalt-strike.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-12_7113bd6ad83f3c3f71f69728588ab256_akira_cobalt-strike.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2904
  • 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:2932
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PerfLogs\Admin\akira_readme.txt

    Filesize

    2KB

    MD5

    17176389039280491398136e0a2cf57a

    SHA1

    b9e4c31a53421de64914b1d400a1dc3002b2420c

    SHA256

    dcfe63d7fa269298fac52989c44f1d4afa3f65e1c184acffbb7d051c209ef5c4

    SHA512

    b95a1c5a13c62f94ba4853442f82358424e618b83299c7515b32dcce1978749a7df43b2fd23ef0d5857fc652a76ee88accaf11f65027cb34f36ddd4cf79f6901

  • memory/2932-4-0x000007FEF578E000-0x000007FEF578F000-memory.dmp

    Filesize

    4KB

  • memory/2932-5-0x000000001B740000-0x000000001BA22000-memory.dmp

    Filesize

    2.9MB

  • memory/2932-8-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

    Filesize

    9.6MB

  • memory/2932-11-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

    Filesize

    9.6MB

  • memory/2932-10-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

    Filesize

    9.6MB

  • memory/2932-9-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

    Filesize

    9.6MB

  • memory/2932-7-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

    Filesize

    9.6MB

  • memory/2932-6-0x0000000002240000-0x0000000002248000-memory.dmp

    Filesize

    32KB

  • memory/2932-12-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

    Filesize

    9.6MB