Analysis

  • max time kernel
    151s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    06-12-2020 13:22

General

  • Target

    8808e4e220fcda37bdb05b703e86053f88a6ebd68037d37ef89754c459d7ad2b.exe

  • Size

    169KB

  • MD5

    c99e32fb49a2671a6136535c6537c4d7

  • SHA1

    ada9bcb3da63e7b989b279fb6c3bc9fe7ff7b41f

  • SHA256

    8808e4e220fcda37bdb05b703e86053f88a6ebd68037d37ef89754c459d7ad2b

  • SHA512

    ad77caa95954281cdb11239e832953a5c256981b2bc12fe48029ae002bd49c2715108bdf80a45f6aad459a110fa952cbb87fcae09ff23c79e2845a4296067257

Malware Config

Signatures

  • Modifies extensions of user files 7 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 28 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4728 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8808e4e220fcda37bdb05b703e86053f88a6ebd68037d37ef89754c459d7ad2b.exe
    "C:\Users\Admin\AppData\Local\Temp\8808e4e220fcda37bdb05b703e86053f88a6ebd68037d37ef89754c459d7ad2b.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Users\Admin\AppData\Local\Temp\8808e4e220fcda37bdb05b703e86053f88a6ebd68037d37ef89754c459d7ad2b.exe
      "C:\Users\Admin\AppData\Local\Temp\8808e4e220fcda37bdb05b703e86053f88a6ebd68037d37ef89754c459d7ad2b.exe"
      2⤵
      • Modifies extensions of user files
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      PID:1212

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

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\Temp\OT6
    MD5

    2d794a9ea61388982ec9b923392286e6

    SHA1

    1a9177454a01bba6ace039ab05dd0e77b713670b

    SHA256

    6bcef2dadac4d099d8903d1a2a728da2c3e97ceddaed059b8a31a92f627d6ae9

    SHA512

    cff53cbd4748e5ee6d5e5b080011dbc40f80507ad76fb8e5119569e0c13e8e84d526985cf74486aadb5ac37f926b3fd25e0fd681650c1c7bd504e1ac91a0f072

  • C:\Users\Admin\AppData\Local\Temp\nsx2C6F.tmp\System.dll
    MD5

    3f176d1ee13b0d7d6bd92e1c7a0b9bae

    SHA1

    fe582246792774c2c9dd15639ffa0aca90d6fd0b

    SHA256

    fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

    SHA512

    0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

  • \Users\Admin\AppData\Local\Temp\nsx2C6F.tmp\System.dll
    MD5

    3f176d1ee13b0d7d6bd92e1c7a0b9bae

    SHA1

    fe582246792774c2c9dd15639ffa0aca90d6fd0b

    SHA256

    fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

    SHA512

    0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

  • memory/1212-3-0x0000000000400000-0x000000000040F000-memory.dmp
    Filesize

    60KB

  • memory/1212-4-0x000000000040A224-mapping.dmp
  • memory/1212-5-0x0000000000400000-0x000000000040F000-memory.dmp
    Filesize

    60KB