Analysis

  • max time kernel
    51s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07-06-2022 03:46

General

  • Target

    1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a.exe

  • Size

    388KB

  • MD5

    0bb4c690fe90c499275a1b268b5ff0eb

  • SHA1

    4308d202a1f308db17e6a5b1eda83aa18aa45ece

  • SHA256

    1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a

  • SHA512

    9b01f020cc2899eb10353072359d343e6b81df1fbea6f6f2d5b138c039a1d9b160da814aaf194fae9561c35550724b1623b086282846d31da9b8dfb89fe83074

Malware Config

Extracted

Family

gozi_ifsb

Botnet

1010

C2

diuolirt.at

deopliazae.at

nifredao.com

filokiyurt.at

Attributes
  • exe_type

    worker

  • server_id

    12

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi, Gozi IFSB

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

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:1396
    • C:\Users\Admin\AppData\Local\Temp\1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a.exe
      "C:\Users\Admin\AppData\Local\Temp\1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:784
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\8C2C\23.bat" "C:\Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe" "C:\Users\Admin\AppData\Local\Temp\1D63B5~1.EXE""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2016
        • C:\Windows\SysWOW64\cmd.exe
          cmd /C ""C:\Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe" "C:\Users\Admin\AppData\Local\Temp\1D63B5~1.EXE""
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1980
          • C:\Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe
            "C:\Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe" "C:\Users\Admin\AppData\Local\Temp\1D63B5~1.EXE"
            5⤵
            • Executes dropped EXE
            • Deletes itself
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:2000
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe
              6⤵
              • Suspicious use of SetThreadContext
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:1948

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\8C2C\23.bat
    Filesize

    108B

    MD5

    4c1a57592f597a511e6f1fdc7c136e10

    SHA1

    c943ddbaf4fb32215855144c1939ac796a2e08fb

    SHA256

    cea9a1bd0293bb12da36d85d405fa767aa47542822ddd681b92339a0c401550e

    SHA512

    3e74d762d062a4032281a31efecb2ca2bb92c0f95884925e9981ef93f01197111fe6cb8346354de1c48e7f194f0be693a9ba81dea916f12d8bf3cff24970bb3b

  • C:\Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe
    Filesize

    388KB

    MD5

    0bb4c690fe90c499275a1b268b5ff0eb

    SHA1

    4308d202a1f308db17e6a5b1eda83aa18aa45ece

    SHA256

    1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a

    SHA512

    9b01f020cc2899eb10353072359d343e6b81df1fbea6f6f2d5b138c039a1d9b160da814aaf194fae9561c35550724b1623b086282846d31da9b8dfb89fe83074

  • C:\Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe
    Filesize

    388KB

    MD5

    0bb4c690fe90c499275a1b268b5ff0eb

    SHA1

    4308d202a1f308db17e6a5b1eda83aa18aa45ece

    SHA256

    1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a

    SHA512

    9b01f020cc2899eb10353072359d343e6b81df1fbea6f6f2d5b138c039a1d9b160da814aaf194fae9561c35550724b1623b086282846d31da9b8dfb89fe83074

  • \Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe
    Filesize

    388KB

    MD5

    0bb4c690fe90c499275a1b268b5ff0eb

    SHA1

    4308d202a1f308db17e6a5b1eda83aa18aa45ece

    SHA256

    1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a

    SHA512

    9b01f020cc2899eb10353072359d343e6b81df1fbea6f6f2d5b138c039a1d9b160da814aaf194fae9561c35550724b1623b086282846d31da9b8dfb89fe83074

  • \Users\Admin\AppData\Roaming\bitsmuid\ACCTient.exe
    Filesize

    388KB

    MD5

    0bb4c690fe90c499275a1b268b5ff0eb

    SHA1

    4308d202a1f308db17e6a5b1eda83aa18aa45ece

    SHA256

    1d63b5ce77d19d8522c2fec8776170851701ac3e983687dc61f94324307fa67a

    SHA512

    9b01f020cc2899eb10353072359d343e6b81df1fbea6f6f2d5b138c039a1d9b160da814aaf194fae9561c35550724b1623b086282846d31da9b8dfb89fe83074

  • memory/784-55-0x0000000000400000-0x0000000000463000-memory.dmp
    Filesize

    396KB

  • memory/784-57-0x0000000000220000-0x0000000000250000-memory.dmp
    Filesize

    192KB

  • memory/784-54-0x0000000076391000-0x0000000076393000-memory.dmp
    Filesize

    8KB

  • memory/1396-72-0x0000000002990000-0x0000000002A05000-memory.dmp
    Filesize

    468KB

  • memory/1396-73-0x0000000002990000-0x0000000002A05000-memory.dmp
    Filesize

    468KB

  • memory/1948-70-0x0000000000000000-mapping.dmp
  • memory/1948-71-0x0000000000430000-0x00000000004A5000-memory.dmp
    Filesize

    468KB

  • memory/1980-60-0x0000000000000000-mapping.dmp
  • memory/2000-64-0x0000000000000000-mapping.dmp
  • memory/2000-67-0x0000000000400000-0x0000000000463000-memory.dmp
    Filesize

    396KB

  • memory/2000-69-0x00000000003A0000-0x00000000003D0000-memory.dmp
    Filesize

    192KB

  • memory/2016-58-0x0000000000000000-mapping.dmp