Resubmissions

03-11-2021 15:58

211103-tevassebf4 10

02-11-2021 04:23

211102-ez9hwsbfd6 10

02-03-2021 13:16

210302-qalv52kwwj 10

Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    02-03-2021 13:16

General

  • Target

    ewgr.png.dll

  • Size

    646KB

  • MD5

    cf24c392a94a9bd8f381f0de2926a4f2

  • SHA1

    bf5ba2b5f9062b1a99797b593e378a1e59faa142

  • SHA256

    b4f98cb2d21258819d8678c29486a2e7854d576efc28b58d930551ca5aa24f20

  • SHA512

    ef2707615abb03cdda353d1ed081814fd77b0af78315d410736bb5e989d42f634c75f876c062254c25ec96e5b7fbb78bf41c7651cbd7d2efa68a49de61848ec0

Malware Config

Extracted

Family

gozi_rm3

Botnet

201193209

C2

https://binobin.xyz

Attributes
  • build

    300932

  • exe_type

    loader

  • non_target_locale

    RU

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.base64
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Blocklisted process makes network request 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 32 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ewgr.png.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ewgr.png.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:1488
  • 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:280
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:280 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1924
  • 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:1436
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1436 CREDAT:275457 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1624
  • 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:1956
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1956 CREDAT:275457 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:664
  • 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:592
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:592 CREDAT:275457 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1576
  • 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:956
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:956 CREDAT:275457 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:864
  • 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:1452
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1452 CREDAT:275457 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1988
  • 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:1752
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1752 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:912
  • 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:956
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:956 CREDAT:275457 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:740

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/612-8-0x000007FEF6080000-0x000007FEF62FA000-memory.dmp

    Filesize

    2.5MB

  • memory/1436-10-0x000007FEFBA71000-0x000007FEFBA73000-memory.dmp

    Filesize

    8KB

  • memory/1436-11-0x0000000000560000-0x0000000000570000-memory.dmp

    Filesize

    64KB

  • memory/1488-7-0x00000000001D0000-0x00000000001E0000-memory.dmp

    Filesize

    64KB

  • memory/1488-6-0x0000000000170000-0x000000000017E000-memory.dmp

    Filesize

    56KB

  • memory/1488-5-0x00000000002E0000-0x00000000002F2000-memory.dmp

    Filesize

    72KB

  • memory/1488-4-0x0000000000120000-0x0000000000121000-memory.dmp

    Filesize

    4KB

  • memory/1488-3-0x0000000075781000-0x0000000075783000-memory.dmp

    Filesize

    8KB