Resubmissions

24-08-2021 15:04

210824-nsbf1ebs56 10

27-07-2021 08:55

210727-2d8acwdeyx 10

Analysis

  • max time kernel
    134s
  • max time network
    137s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    27-07-2021 08:55

General

  • Target

    direction.dll

  • Size

    252KB

  • MD5

    499200f6a8e223c057c6e16701740721

  • SHA1

    ef46f9c62b94715b750173074c51100285ff6fe9

  • SHA256

    d7e64f8e65ce586ce2f0a857810b2a23f85140bf5e52e5a824f09787fb2bf45e

  • SHA512

    b32e3c480c7533d6fa745b3d22bf7d7bed1d0f52452b77c8232560e3d3e8979db53e0e45eb47e81757b6f20cfa01b20c55d5e63f423d89666ee74e6c9988a511

Malware Config

Extracted

Family

gozi_ifsb

Botnet

7410

C2

signin.microsoft.com

alliances.bar

allianceline.bar

alliancer.bar

Attributes
  • build

    250206

  • dns_servers

    107.174.86.134

    107.175.127.22

  • exe_type

    loader

  • server_id

    12

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi, Gozi IFSB

    Gozi ISFB is a well-known and widely distributed banking trojan.

  • suricata: ET MALWARE Ursnif Variant CnC Beacon - URI Struct M1 (_2B)
  • suricata: ET MALWARE Ursnif Variant CnC Beacon - URI Struct M2 (_2F)
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\direction.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\direction.dll
      2⤵
        PID:1012
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1008
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1008 CREDAT:82945 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1244
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2648 CREDAT:82945 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:2104
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2416
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2416 CREDAT:82945 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:3652
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3120
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3120 CREDAT:82945 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2236

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1008-118-0x00007FF846FD0000-0x00007FF84703B000-memory.dmp
      Filesize

      428KB

    • memory/1012-114-0x0000000000000000-mapping.dmp
    • memory/1012-116-0x0000000010000000-0x0000000010090000-memory.dmp
      Filesize

      576KB

    • memory/1012-115-0x0000000000D80000-0x0000000000E2E000-memory.dmp
      Filesize

      696KB

    • memory/1244-119-0x0000000000000000-mapping.dmp
    • memory/2104-121-0x0000000000000000-mapping.dmp
    • memory/2236-125-0x0000000000000000-mapping.dmp
    • memory/2416-122-0x00007FF856780000-0x00007FF8567EB000-memory.dmp
      Filesize

      428KB

    • memory/2648-120-0x00007FF856780000-0x00007FF8567EB000-memory.dmp
      Filesize

      428KB

    • memory/3120-124-0x00007FF856780000-0x00007FF8567EB000-memory.dmp
      Filesize

      428KB

    • memory/3652-123-0x0000000000000000-mapping.dmp