Analysis

  • max time kernel
    122s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    09-10-2020 15:33

General

  • Target

    dcf6b06a2d2848e904d07139803037bc.exe

  • Size

    1.3MB

  • MD5

    dcf6b06a2d2848e904d07139803037bc

  • SHA1

    f6ffc921601f7591e0ddcba23ec39ea21b644623

  • SHA256

    033dd7d02172855d2e61e1dcfae24bdeb9136310503e06bf7079ef78db9422ae

  • SHA512

    f6c5062cc895701e0832f7401d19c276cd2f6cb824c06394c7c4af25be65fbf116599f115f0829cb42ab7a13267e503bf0ab5d829bd013cd3c072217bc30b512

Malware Config

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Extracted

Family

oski

C2

letitburns.ug

Extracted

Family

raccoon

Botnet

ee3b370277b98939f8098234def6cb188c03591f

Attributes
  • url4cnc

    https://telete.in/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.

  • Drops desktop.ini file(s) 1 IoCs
  • 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
  • Modifies system certificate store 2 TTPs 2 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\dcf6b06a2d2848e904d07139803037bc.exe
    "C:\Users\Admin\AppData\Local\Temp\dcf6b06a2d2848e904d07139803037bc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\GutyuREdbhgv.exe
      "C:\Users\Admin\AppData\Local\Temp\GutyuREdbhgv.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1056
      • C:\Users\Admin\AppData\Local\Temp\GutyuREdbhgv.exe
        "C:\Users\Admin\AppData\Local\Temp\GutyuREdbhgv.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:1160
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 1160 & erase C:\Users\Admin\AppData\Local\Temp\GutyuREdbhgv.exe & RD /S /Q C:\\ProgramData\\957240099963654\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1120
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 1160
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1064
    • C:\Users\Admin\AppData\Local\Temp\Iyrebdfasd.exe
      "C:\Users\Admin\AppData\Local\Temp\Iyrebdfasd.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Users\Admin\AppData\Local\Temp\Iyrebdfasd.exe
        "C:\Users\Admin\AppData\Local\Temp\Iyrebdfasd.exe"
        3⤵
        • Executes dropped EXE
        PID:1800
    • C:\Users\Admin\AppData\Local\Temp\dcf6b06a2d2848e904d07139803037bc.exe
      "C:\Users\Admin\AppData\Local\Temp\dcf6b06a2d2848e904d07139803037bc.exe"
      2⤵
      • Drops desktop.ini file(s)
      • Modifies system certificate store
      PID:1816

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

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\GutyuREdbhgv.exe
    MD5

    5b7d1d4381bb5562f0f0a1e649a228cd

    SHA1

    812d8b26d9be2bb7cd98dc5c45f9f30811f0fed8

    SHA256

    2ba63fc8f799690fc07df8c442f6b17719771c9d3bd00afa3fe8da39fd0e8abc

    SHA512

    2a7469aef314654a5399361b14d74a17827f7a3826d2b168ca80938ec6afe9e70b0ba8245caf895c86e526b4e16dea756399f15175e3716cff08a511cb2b2362

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

    5b7d1d4381bb5562f0f0a1e649a228cd

    SHA1

    812d8b26d9be2bb7cd98dc5c45f9f30811f0fed8

    SHA256

    2ba63fc8f799690fc07df8c442f6b17719771c9d3bd00afa3fe8da39fd0e8abc

    SHA512

    2a7469aef314654a5399361b14d74a17827f7a3826d2b168ca80938ec6afe9e70b0ba8245caf895c86e526b4e16dea756399f15175e3716cff08a511cb2b2362

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

    5b7d1d4381bb5562f0f0a1e649a228cd

    SHA1

    812d8b26d9be2bb7cd98dc5c45f9f30811f0fed8

    SHA256

    2ba63fc8f799690fc07df8c442f6b17719771c9d3bd00afa3fe8da39fd0e8abc

    SHA512

    2a7469aef314654a5399361b14d74a17827f7a3826d2b168ca80938ec6afe9e70b0ba8245caf895c86e526b4e16dea756399f15175e3716cff08a511cb2b2362

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

    ed7575e8f1672aac7177095a73905579

    SHA1

    ac73720ba378ea64e4fb25584a20f782c9c7e24a

    SHA256

    e4d1dfb9fd729cc59f8ed92e66c049dd5f5deb4ec7b5e6bfe465c29479fa4f67

    SHA512

    999ccf31c32a49f17fc90782c058844cb238bc1166f8e46d84915eca585c80233f49df10322c5064a1368b8da4d3eee2923b2aef41eb81eaf301682db9c5cbf4

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

    ed7575e8f1672aac7177095a73905579

    SHA1

    ac73720ba378ea64e4fb25584a20f782c9c7e24a

    SHA256

    e4d1dfb9fd729cc59f8ed92e66c049dd5f5deb4ec7b5e6bfe465c29479fa4f67

    SHA512

    999ccf31c32a49f17fc90782c058844cb238bc1166f8e46d84915eca585c80233f49df10322c5064a1368b8da4d3eee2923b2aef41eb81eaf301682db9c5cbf4

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

    ed7575e8f1672aac7177095a73905579

    SHA1

    ac73720ba378ea64e4fb25584a20f782c9c7e24a

    SHA256

    e4d1dfb9fd729cc59f8ed92e66c049dd5f5deb4ec7b5e6bfe465c29479fa4f67

    SHA512

    999ccf31c32a49f17fc90782c058844cb238bc1166f8e46d84915eca585c80233f49df10322c5064a1368b8da4d3eee2923b2aef41eb81eaf301682db9c5cbf4

  • \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\GutyuREdbhgv.exe
    MD5

    5b7d1d4381bb5562f0f0a1e649a228cd

    SHA1

    812d8b26d9be2bb7cd98dc5c45f9f30811f0fed8

    SHA256

    2ba63fc8f799690fc07df8c442f6b17719771c9d3bd00afa3fe8da39fd0e8abc

    SHA512

    2a7469aef314654a5399361b14d74a17827f7a3826d2b168ca80938ec6afe9e70b0ba8245caf895c86e526b4e16dea756399f15175e3716cff08a511cb2b2362

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

    5b7d1d4381bb5562f0f0a1e649a228cd

    SHA1

    812d8b26d9be2bb7cd98dc5c45f9f30811f0fed8

    SHA256

    2ba63fc8f799690fc07df8c442f6b17719771c9d3bd00afa3fe8da39fd0e8abc

    SHA512

    2a7469aef314654a5399361b14d74a17827f7a3826d2b168ca80938ec6afe9e70b0ba8245caf895c86e526b4e16dea756399f15175e3716cff08a511cb2b2362

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

    5b7d1d4381bb5562f0f0a1e649a228cd

    SHA1

    812d8b26d9be2bb7cd98dc5c45f9f30811f0fed8

    SHA256

    2ba63fc8f799690fc07df8c442f6b17719771c9d3bd00afa3fe8da39fd0e8abc

    SHA512

    2a7469aef314654a5399361b14d74a17827f7a3826d2b168ca80938ec6afe9e70b0ba8245caf895c86e526b4e16dea756399f15175e3716cff08a511cb2b2362

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

    ed7575e8f1672aac7177095a73905579

    SHA1

    ac73720ba378ea64e4fb25584a20f782c9c7e24a

    SHA256

    e4d1dfb9fd729cc59f8ed92e66c049dd5f5deb4ec7b5e6bfe465c29479fa4f67

    SHA512

    999ccf31c32a49f17fc90782c058844cb238bc1166f8e46d84915eca585c80233f49df10322c5064a1368b8da4d3eee2923b2aef41eb81eaf301682db9c5cbf4

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

    ed7575e8f1672aac7177095a73905579

    SHA1

    ac73720ba378ea64e4fb25584a20f782c9c7e24a

    SHA256

    e4d1dfb9fd729cc59f8ed92e66c049dd5f5deb4ec7b5e6bfe465c29479fa4f67

    SHA512

    999ccf31c32a49f17fc90782c058844cb238bc1166f8e46d84915eca585c80233f49df10322c5064a1368b8da4d3eee2923b2aef41eb81eaf301682db9c5cbf4

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

    ed7575e8f1672aac7177095a73905579

    SHA1

    ac73720ba378ea64e4fb25584a20f782c9c7e24a

    SHA256

    e4d1dfb9fd729cc59f8ed92e66c049dd5f5deb4ec7b5e6bfe465c29479fa4f67

    SHA512

    999ccf31c32a49f17fc90782c058844cb238bc1166f8e46d84915eca585c80233f49df10322c5064a1368b8da4d3eee2923b2aef41eb81eaf301682db9c5cbf4

  • memory/1056-4-0x0000000000000000-mapping.dmp
  • memory/1064-36-0x0000000000000000-mapping.dmp
  • memory/1120-35-0x0000000000000000-mapping.dmp
  • memory/1160-27-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1160-22-0x0000000000417A8B-mapping.dmp
  • memory/1160-19-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1508-9-0x0000000000000000-mapping.dmp
  • memory/1612-29-0x000007FEF7D20000-0x000007FEF7F9A000-memory.dmp
    Filesize

    2.5MB

  • memory/1800-26-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/1800-21-0x000000000041A684-mapping.dmp
  • memory/1800-18-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/1816-23-0x0000000000440102-mapping.dmp
  • memory/1816-28-0x0000000000400000-0x0000000000497000-memory.dmp
    Filesize

    604KB

  • memory/1816-20-0x0000000000400000-0x0000000000497000-memory.dmp
    Filesize

    604KB