Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2025 16:58

General

  • Target

    file.exe

  • Size

    545KB

  • MD5

    6a202e9a95f58938d02385e31d43ed87

  • SHA1

    53628c7a155ccb7af1135140083939018d3587f1

  • SHA256

    15abbff9fbce7f5782c1654775938dcd2ce0a8ebd683a008547f8a4e421888c4

  • SHA512

    c6684838b84499dc97c75f33c1d3be29c654b90d2f0293c33af6a986facc8a673275a0f33a82f43aa1a8e67684b07092e462b1e2c309450a9ec0486ec7b4a7d1

  • SSDEEP

    12288:tM9fIMGezCq1kWOgb/VPFAQxSNJ4krheZfIVWRkn8oXdd6:hbq1kWJb9PFAQxgJheZfY8gdI

Malware Config

Extracted

Path

C:\ProgramData\readme.txt

Ransom Note
Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom You can contact us and decrypt one file for free on this TOR site (you should download and install TOR browser first https://torproject.org) https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion/ Your company id for log in: ea3d3d33-1635-47f7-a1a4-0078267b30bb
URLs

https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion/

Signatures

  • Black Basta

    A ransomware family targeting Windows and Linux ESXi first seen in February 2022.

  • Blackbasta family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (9760) files with added filename extension

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 8 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) 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 13 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of WriteProcessMemory 28 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2392
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2892
      • C:\Windows\SysWOW64\vssadmin.exe
        C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
        3⤵
        • System Location Discovery: System Language Discovery
        • Interacts with shadow copies
        PID:2432
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2060
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:676
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DC81F896DCA0B1D50FCF870ECE812249
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3116
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding 6BA78C27D931AD24DEBBC0E6DBA5B693
      2⤵
      • Loads dropped DLL
      PID:3132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\readme.txt

    Filesize

    394B

    MD5

    0394335bf42f1f1a1a730ec7eec45b73

    SHA1

    f1d6f7decd3120826b870479f45501acd979df47

    SHA256

    677ddbeefb459f03432a0d2d24f13f0dcec1289722639fb34849aa41a4bac620

    SHA512

    ea61fcecab48e463b2737c35247b30d03e626f3db9bccdce200b818bf52b6c3a32707b4356fbd6ff915b69cac2b5829d44a3f9fa31357dc5cb9ee5381636ddd3

  • C:\Users\Public\Music\Sample Music\Kalimba.mp3.basta

    Filesize

    8.0MB

    MD5

    5a03e647f6021e1d36052271138ead4c

    SHA1

    8babf1d9b05a93c12c26d0994e550d933a86b0cc

    SHA256

    9a4e8ec3c3f3014e37c8f6d6c5aff28c9c8beb33bad197b9453a3d6de0697c42

    SHA512

    058d483b0c38cb0e4d46a599eb3762050aede15cba56155d00cebfc9c92b07ef74d34015bed8f8f7f13762119c07eb4f56efba13ea90ba38200025ca47d9a8bc

  • C:\Users\Public\Music\Sample Music\Sleep Away.mp3.basta

    Filesize

    4.6MB

    MD5

    0e258c7566b6d64918fecad3c92dec79

    SHA1

    6b3863981fe2ee491cd59e5e798ada224f89e3a2

    SHA256

    e67f5c20f3c899986958737014cf36a26442a1490d9050fb78deb31a3963edd9

    SHA512

    1ab4ad20b4fb159fc2d64ce96467a80df71356ac9259dfbedbd5d3a21f38e18fa30feae4fc1b7dc7d8e7f4c360851f15095633f94a6d8a47e3e831de44c74e3f

  • C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg.basta

    Filesize

    859KB

    MD5

    b486d1c74f40b894d353177e103ca971

    SHA1

    8e2fbc13487a8a704aee090a2d27a2069ececb3e

    SHA256

    da20fd731c8fa4b341302605878e6c8f647747bcf111adbf981140a0055bab5b

    SHA512

    38a873f7093e3a508b8dbdc3f2061dacbe71a48cf735479394148a2b88fe29314c85c018a1472176b33164e4452eae4c7e7f9ba94136875e37a150d7c5dee897

  • C:\Users\Public\Pictures\Sample Pictures\Desert.jpg.basta

    Filesize

    826KB

    MD5

    e60b5671616109ce033fe6fb73b0bd93

    SHA1

    114e4df2c081e34161e341c0126309308e55a567

    SHA256

    dd22e62f26ebdd563bdce4cebc847c18364d547587f759c7c582ce93a340848f

    SHA512

    57218315e29c7c0db9b5eec8b2cf77765e2445157e620c384d82ca89722ce68511adc6c42e7619c3174c2dff4d0c19bddc7ed9b56e6160e3daab7f80abf9b20d

  • C:\Users\Public\Pictures\Sample Pictures\Hydrangeas.jpg.basta

    Filesize

    581KB

    MD5

    3b27c142d20a5b571430ae7462c1c67f

    SHA1

    00b4aa09b1dedad75867c6f963117a8e0c211e73

    SHA256

    3ecb7b24de4b065018c840e47c224836394dbd53748b72f3d08bda8988b36e81

    SHA512

    4b2171579c3214fe241f789455f328597a4d1ca9b6d32d498589f0790858f629db7bb5d82dcd13afde40eff1517c8b641e03b5c20368d29f6a0321febc020730

  • C:\Users\Public\Pictures\Sample Pictures\Jellyfish.jpg.basta

    Filesize

    758KB

    MD5

    9dd7e06c3f159e4e24fcf98796de4248

    SHA1

    429271076a77c3c95da5c033173a96f2abb9dc79

    SHA256

    3b3534fa37b0c7a758b38567946f06cce357c7281a44aad92b6238247b3f577f

    SHA512

    639c21b46ecb92d83021a080d9e9bdb3909af2f94dab40f2d48ec8ed8e7752cba8695bb186dac7f811a170e87c36b1028e14ed78b6ceb43717cec3eefe31ee6c

  • C:\Users\Public\Pictures\Sample Pictures\Koala.jpg.basta

    Filesize

    763KB

    MD5

    3099b537b5d7c725f7a50abfc97dc536

    SHA1

    af5ab3d62058d72556942d00967e357b7a44049b

    SHA256

    f572515d4f0114117733565e72679d71f248d88618ed5e8b09e86584c106a59c

    SHA512

    c89f1a820593c56d0ff8e0b011d042c318810612a00cbf691c8fbbbfb55d45fb2847182bc9aad019dcbbd7f6f25779d742b92194810aa315f212cdd51bf44bdf

  • C:\Users\Public\Pictures\Sample Pictures\Lighthouse.jpg.basta

    Filesize

    548KB

    MD5

    4a074392138f7d345575b4658c9b35a4

    SHA1

    6b94d1332ee733a018f2b511d77f219895122586

    SHA256

    a347a95bcc70efea8e94d015afe2accf888efca3687f15b3bcfede4e5cbffde6

    SHA512

    a68a6f9c9c25c7a35a7126de6728c55009ee212e769c25cc44bd5225b0e524081de818fe5364be2e5bc0c41e0f27a8681f39e1c682388e62727061a26abcc77c

  • C:\Users\Public\Pictures\Sample Pictures\Penguins.jpg.basta

    Filesize

    760KB

    MD5

    8f21f2eb83c922b2e70493b21e99d4b1

    SHA1

    d218d8e40fef0c3d8332d090b62f792b5be34063

    SHA256

    ce9f65be88a78abb7d1fd27ed64be2af01d21c427fea347046b541d6337ec7ea

    SHA512

    356fa4762f381dfcca2cb41ff1dc9739e29e2d78dc091b3b589125acf6fde7bface7a377c44a6267316f7f10271966abab9cb0dcb60980691a68f22524cd8aa4

  • C:\Users\Public\Pictures\Sample Pictures\Tulips.jpg.basta

    Filesize

    606KB

    MD5

    4afbf4b44db73294c31e6471bd400b51

    SHA1

    5dac0e95d8fcc856e6a953d369d761b7a20b72a7

    SHA256

    6eb3cfd8ecfbf857d31077920a5faf298a713b6b2c53a37b6085d91140a5a991

    SHA512

    72bd9d50bbfdcc2bdff06e221acfbfcbdebe9e6f43d6b7963da43408cab350547a640eaa5dbff506f262ba6fed4e65f3f12504bc98d40dc718fc659984640c37

  • C:\Users\Public\Videos\Sample Videos\Wildlife.wmv.basta

    Filesize

    25.0MB

    MD5

    e6fa12e296327063757a116132892e24

    SHA1

    b0acd22896c7d0b302bde3f359dc384a6163aa88

    SHA256

    e84bde15f4aa3157ae72fd10f7663ef303320c0ac72d2b3f5bafa8dd12fcea27

    SHA512

    d035f2ab85caafbc68fcdeb72f8f1a1c0a26dc39e713db1eda8f163930b6486f6e0a7f0d2e7c041ac3cb53aefda231320755e948e7cb91647a564d65f7178fff

  • C:\Windows\Installer\MSI8BC4.tmp

    Filesize

    86KB

    MD5

    ff58cd07bf4913ef899efd2dfb112553

    SHA1

    f14c1681de808543071602f17a6299f8b4ba2ae8

    SHA256

    1afafe9157ff5670bbec8ce622f45d1ce51b3ee77b7348d3a237e232f06c5391

    SHA512

    23e27444b6cdc17fe56f3a80d6325c2be61ae84213bc7cdaad7bb96daa7e8d2d3defc1b96c3cee4a3f32dc464b0e05720bcf1c0e99626bf83de1b6d5aac000a3

  • \Windows\Installer\MSI5B1F.tmp

    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

  • \Windows\Installer\MSI5F17.tmp

    Filesize

    148KB

    MD5

    33908aa43ac0aaabc06a58d51b1c2cca

    SHA1

    0a0d1ce3435abe2eed635481bac69e1999031291

    SHA256

    4447faacefaba8f040822101e2a4103031660de9139e70ecff9aa3a89455a783

    SHA512

    d5216a53df9cfbe1a78629c103286eb17042f639149c46b6a1cd76498531ae82afd265462fbe0ba9baaff275fc95c66504804f107c449f3fc5833b1ed9c3da46

  • \Windows\Installer\MSI7B48.tmp

    Filesize

    257KB

    MD5

    d1f5ce6b23351677e54a245f46a9f8d2

    SHA1

    0d5c6749401248284767f16df92b726e727718ca

    SHA256

    57cb8f01cf553c3886760180d1a74839f2f676640115504485aca9692f577acc

    SHA512

    960e90894e7bedcc89894e77e57e8ee0c99dd2c530d02665e8bbd3a1793eccc1e295c5923d1f37c757fa1158097fbaae70898c16052882d3d210c29ea801b3ba

  • \Windows\Installer\MSIAD50.tmp

    Filesize

    363KB

    MD5

    4a843a97ae51c310b573a02ffd2a0e8e

    SHA1

    063fa914ccb07249123c0d5f4595935487635b20

    SHA256

    727ecf287fb6f4953ee7748913dd559b4f8d3a022fa2ca55bc51cf5886c52086

    SHA512

    905c081552d95b523ecf1155b6c7e157652e5ff00cda30c1c21124d266eb7d305c3398d6832316f403dc45d1b639f1a5a67aea29922cd1a032f52e5247ec55d2