Analysis

  • max time kernel
    35s
  • max time network
    99s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04-11-2020 06:05

General

  • Target

    8f62ed60962df60d1d11c6e2a97a3a6e.exe

  • Size

    671KB

  • MD5

    8f62ed60962df60d1d11c6e2a97a3a6e

  • SHA1

    d7a80002dba75d642cd05f094110e147541f2058

  • SHA256

    df25322be14f617652607a150c806b4ecb3a3317564755518b8100063b58a50e

  • SHA512

    3b8b5dcf317eb0a5dd061832fa8bc6eb6b1aa290104423b02c3e9b6cd4a5744c1922010478603b545470f303ee4eb65f17d494a5e222b382cd922a7fd75f7080

Score
10/10

Malware Config

Signatures

  • BazarBackdoor 6 IoCs

    Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.

  • Blacklisted process makes network request 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 852 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f62ed60962df60d1d11c6e2a97a3a6e.exe
    "C:\Users\Admin\AppData\Local\Temp\8f62ed60962df60d1d11c6e2a97a3a6e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:292
    • C:\Windows\System32\cmd.exe
      C:\Windows\System32\cmd.exe
      2⤵
      • Blacklisted process makes network request
      • Modifies system certificate store
      PID:1464
  • C:\Users\Admin\AppData\Local\Temp\8f62ed60962df60d1d11c6e2a97a3a6e.exe
    C:\Users\Admin\AppData\Local\Temp\8f62ed60962df60d1d11c6e2a97a3a6e.exe 4249906950
    1⤵
      PID:332

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Install Root Certificate

    1
    T1130

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      MD5

      123c64605428a62414c7b4db92133241

      SHA1

      90d73aef9cf4a1f3a27cd4ba9c01b67d0939114b

      SHA256

      6b472aba58cdcd7c2439c38722b2764f6a1161d377e1dd6657e7b7ef2d1f002d

      SHA512

      1bea002ee0ee061dd767de482047552d8e8c4ec8d6c56831e70891fbe31c5e85ec8db5f680b15aa56ecd30988a1f324a59c349c9e3ccf0941255ea22fb57d845

    • memory/292-1-0x00000000004A0000-0x00000000004CC000-memory.dmp
      Filesize

      176KB

    • memory/292-0-0x0000000000470000-0x000000000049C000-memory.dmp
      Filesize

      176KB

    • memory/332-4-0x0000000001BD0000-0x0000000001BFC000-memory.dmp
      Filesize

      176KB

    • memory/1216-2-0x000007FEF6580000-0x000007FEF67FA000-memory.dmp
      Filesize

      2.5MB

    • memory/1464-5-0x000000004A290000-0x000000004A2D4000-memory.dmp
      Filesize

      272KB

    • memory/1464-6-0x000000004A2ADA28-mapping.dmp
    • memory/1464-7-0x000000004A290000-0x000000004A2D4000-memory.dmp
      Filesize

      272KB