Analysis

  • max time kernel
    137s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-12-2021 14:01

General

  • Target

    ed58ffee46a583c177c792b56c9fc20ccd9509d125f2e3fc90c4f48de7e2c2a1.exe

  • Size

    1.2MB

  • MD5

    8f1c8b40c7be588389a8d382040b23bb

  • SHA1

    bef5209ae90a3bd3171e1e0be4e8148c4ccd8a6a

  • SHA256

    ed58ffee46a583c177c792b56c9fc20ccd9509d125f2e3fc90c4f48de7e2c2a1

  • SHA512

    9192b6f2f8320a728c445f9cd6e6d66495ad0ebebd7ff193dc09ee8ae57b3933c1b75dc208e7d638db273cb9d31b4ca24ee7bfd9729ff0cdbf432d72bb322b1f

Malware Config

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Extracted

Family

oski

C2

prepepe.ac.ug

Extracted

Family

raccoon

Version

1.8.3-hotfix

Botnet

5781468cedb3a203003fdf1f12e72fe98d6f1c0f

Attributes
  • url4cnc

    http://194.180.174.53/brikitiki

    http://91.219.236.18/brikitiki

    http://194.180.174.41/brikitiki

    http://91.219.236.148/brikitiki

    https://t.me/brikitiki

rc4.plain
rc4.plain

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed58ffee46a583c177c792b56c9fc20ccd9509d125f2e3fc90c4f48de7e2c2a1.exe
    "C:\Users\Admin\AppData\Local\Temp\ed58ffee46a583c177c792b56c9fc20ccd9509d125f2e3fc90c4f48de7e2c2a1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
      "C:\Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1456
      • C:\Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
        "C:\Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe"
        3⤵
        • Executes dropped EXE
        PID:1632
    • C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
      "C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:684
      • C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
        "C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:1408
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 1408 & erase C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe & RD /S /Q C:\\ProgramData\\222299842182912\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:540
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 1408
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1740
    • C:\Users\Admin\AppData\Local\Temp\ed58ffee46a583c177c792b56c9fc20ccd9509d125f2e3fc90c4f48de7e2c2a1.exe
      "C:\Users\Admin\AppData\Local\Temp\ed58ffee46a583c177c792b56c9fc20ccd9509d125f2e3fc90c4f48de7e2c2a1.exe"
      2⤵
        PID:1820

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
      MD5

      870d6e5aef6dea98ced388cce87bfbd4

      SHA1

      2d7eee096d38d3c2a8f12fcba0a44b4c4da33d54

      SHA256

      6d50833895b2e3eb9d6f879a6436660127c270b6a516cda0253e56a3d8b7fba0

      SHA512

      0d55ab28b2f80136af121b870b7503551d87bbeb2848cf9a32540006cac9a5e346d9fcce2bf1223a22927f72a147b81487533a10b91373d4fa4429d6159fd566

    • C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
      MD5

      870d6e5aef6dea98ced388cce87bfbd4

      SHA1

      2d7eee096d38d3c2a8f12fcba0a44b4c4da33d54

      SHA256

      6d50833895b2e3eb9d6f879a6436660127c270b6a516cda0253e56a3d8b7fba0

      SHA512

      0d55ab28b2f80136af121b870b7503551d87bbeb2848cf9a32540006cac9a5e346d9fcce2bf1223a22927f72a147b81487533a10b91373d4fa4429d6159fd566

    • C:\Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
      MD5

      870d6e5aef6dea98ced388cce87bfbd4

      SHA1

      2d7eee096d38d3c2a8f12fcba0a44b4c4da33d54

      SHA256

      6d50833895b2e3eb9d6f879a6436660127c270b6a516cda0253e56a3d8b7fba0

      SHA512

      0d55ab28b2f80136af121b870b7503551d87bbeb2848cf9a32540006cac9a5e346d9fcce2bf1223a22927f72a147b81487533a10b91373d4fa4429d6159fd566

    • C:\Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
      MD5

      78d40b12ffc837843fbf4de2164002f6

      SHA1

      985bdffa69bb915831cd6b81783aef3ae4418f53

      SHA256

      308a15dabdc4ce6b96dd54954a351d304f1fcb59e8c93221ba1c412bcdfd1c44

      SHA512

      c6575e1771d37ded4089d963bea95deac78b329ed555c991d7c559ee1970dd0887a965e88c09981529adc9c25df5cfd3d57e3dce6724da1f01f1198f0f460b79

    • C:\Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
      MD5

      78d40b12ffc837843fbf4de2164002f6

      SHA1

      985bdffa69bb915831cd6b81783aef3ae4418f53

      SHA256

      308a15dabdc4ce6b96dd54954a351d304f1fcb59e8c93221ba1c412bcdfd1c44

      SHA512

      c6575e1771d37ded4089d963bea95deac78b329ed555c991d7c559ee1970dd0887a965e88c09981529adc9c25df5cfd3d57e3dce6724da1f01f1198f0f460b79

    • C:\Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
      MD5

      78d40b12ffc837843fbf4de2164002f6

      SHA1

      985bdffa69bb915831cd6b81783aef3ae4418f53

      SHA256

      308a15dabdc4ce6b96dd54954a351d304f1fcb59e8c93221ba1c412bcdfd1c44

      SHA512

      c6575e1771d37ded4089d963bea95deac78b329ed555c991d7c559ee1970dd0887a965e88c09981529adc9c25df5cfd3d57e3dce6724da1f01f1198f0f460b79

    • \ProgramData\mozglue.dll
      MD5

      8f73c08a9660691143661bf7332c3c27

      SHA1

      37fa65dd737c50fda710fdbde89e51374d0c204a

      SHA256

      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

      SHA512

      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

    • \ProgramData\msvcp140.dll
      MD5

      109f0f02fd37c84bfc7508d4227d7ed5

      SHA1

      ef7420141bb15ac334d3964082361a460bfdb975

      SHA256

      334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

      SHA512

      46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

    • \ProgramData\nss3.dll
      MD5

      bfac4e3c5908856ba17d41edcd455a51

      SHA1

      8eec7e888767aa9e4cca8ff246eb2aacb9170428

      SHA256

      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

      SHA512

      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

    • \ProgramData\sqlite3.dll
      MD5

      e477a96c8f2b18d6b5c27bde49c990bf

      SHA1

      e980c9bf41330d1e5bd04556db4646a0210f7409

      SHA256

      16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

      SHA512

      335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

    • \ProgramData\vcruntime140.dll
      MD5

      7587bf9cb4147022cd5681b015183046

      SHA1

      f2106306a8f6f0da5afb7fc765cfa0757ad5a628

      SHA256

      c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

      SHA512

      0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

    • \Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
      MD5

      870d6e5aef6dea98ced388cce87bfbd4

      SHA1

      2d7eee096d38d3c2a8f12fcba0a44b4c4da33d54

      SHA256

      6d50833895b2e3eb9d6f879a6436660127c270b6a516cda0253e56a3d8b7fba0

      SHA512

      0d55ab28b2f80136af121b870b7503551d87bbeb2848cf9a32540006cac9a5e346d9fcce2bf1223a22927f72a147b81487533a10b91373d4fa4429d6159fd566

    • \Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
      MD5

      870d6e5aef6dea98ced388cce87bfbd4

      SHA1

      2d7eee096d38d3c2a8f12fcba0a44b4c4da33d54

      SHA256

      6d50833895b2e3eb9d6f879a6436660127c270b6a516cda0253e56a3d8b7fba0

      SHA512

      0d55ab28b2f80136af121b870b7503551d87bbeb2848cf9a32540006cac9a5e346d9fcce2bf1223a22927f72a147b81487533a10b91373d4fa4429d6159fd566

    • \Users\Admin\AppData\Local\Temp\Dcvxaamev.exe
      MD5

      870d6e5aef6dea98ced388cce87bfbd4

      SHA1

      2d7eee096d38d3c2a8f12fcba0a44b4c4da33d54

      SHA256

      6d50833895b2e3eb9d6f879a6436660127c270b6a516cda0253e56a3d8b7fba0

      SHA512

      0d55ab28b2f80136af121b870b7503551d87bbeb2848cf9a32540006cac9a5e346d9fcce2bf1223a22927f72a147b81487533a10b91373d4fa4429d6159fd566

    • \Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
      MD5

      78d40b12ffc837843fbf4de2164002f6

      SHA1

      985bdffa69bb915831cd6b81783aef3ae4418f53

      SHA256

      308a15dabdc4ce6b96dd54954a351d304f1fcb59e8c93221ba1c412bcdfd1c44

      SHA512

      c6575e1771d37ded4089d963bea95deac78b329ed555c991d7c559ee1970dd0887a965e88c09981529adc9c25df5cfd3d57e3dce6724da1f01f1198f0f460b79

    • \Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
      MD5

      78d40b12ffc837843fbf4de2164002f6

      SHA1

      985bdffa69bb915831cd6b81783aef3ae4418f53

      SHA256

      308a15dabdc4ce6b96dd54954a351d304f1fcb59e8c93221ba1c412bcdfd1c44

      SHA512

      c6575e1771d37ded4089d963bea95deac78b329ed555c991d7c559ee1970dd0887a965e88c09981529adc9c25df5cfd3d57e3dce6724da1f01f1198f0f460b79

    • \Users\Admin\AppData\Local\Temp\FFDvbcrdfqs.exe
      MD5

      78d40b12ffc837843fbf4de2164002f6

      SHA1

      985bdffa69bb915831cd6b81783aef3ae4418f53

      SHA256

      308a15dabdc4ce6b96dd54954a351d304f1fcb59e8c93221ba1c412bcdfd1c44

      SHA512

      c6575e1771d37ded4089d963bea95deac78b329ed555c991d7c559ee1970dd0887a965e88c09981529adc9c25df5cfd3d57e3dce6724da1f01f1198f0f460b79

    • memory/540-96-0x0000000000000000-mapping.dmp
    • memory/684-68-0x0000000000000000-mapping.dmp
    • memory/960-55-0x0000000000220000-0x0000000000226000-memory.dmp
      Filesize

      24KB

    • memory/960-58-0x0000000000230000-0x0000000000231000-memory.dmp
      Filesize

      4KB

    • memory/960-57-0x0000000076921000-0x0000000076923000-memory.dmp
      Filesize

      8KB

    • memory/960-56-0x0000000000220000-0x000000000022A000-memory.dmp
      Filesize

      40KB

    • memory/1408-89-0x0000000000400000-0x0000000000434000-memory.dmp
      Filesize

      208KB

    • memory/1408-90-0x00000000003C0000-0x00000000003C1000-memory.dmp
      Filesize

      4KB

    • memory/1408-81-0x0000000000417A8B-mapping.dmp
    • memory/1456-84-0x0000000000240000-0x0000000000247000-memory.dmp
      Filesize

      28KB

    • memory/1456-61-0x0000000000000000-mapping.dmp
    • memory/1632-86-0x0000000000230000-0x0000000000231000-memory.dmp
      Filesize

      4KB

    • memory/1632-85-0x0000000000400000-0x0000000000420000-memory.dmp
      Filesize

      128KB

    • memory/1632-74-0x000000000041A684-mapping.dmp
    • memory/1740-97-0x0000000000000000-mapping.dmp
    • memory/1820-88-0x0000000000400000-0x0000000000491000-memory.dmp
      Filesize

      580KB

    • memory/1820-76-0x000000000043F176-mapping.dmp