Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 21:20

General

  • Target

    b3be1dd63db308b92cc3704faa396da6b544f3ab4e212f62de3aab9326229be1.exe

  • Size

    908KB

  • MD5

    3c1429579cb97febfe58dc0f8cd6fbe9

  • SHA1

    79885de392a4b5776522b28ef7b9ed5dd9d5319c

  • SHA256

    b3be1dd63db308b92cc3704faa396da6b544f3ab4e212f62de3aab9326229be1

  • SHA512

    a4bf3829c8fd4b983846d52c3fc10608ff631abb0b355a738f9c5128697c0464e06c5b10f75215eab643f98e09b220da21adf4a74fdc807ff1ed5da0f2e58484

Malware Config

Extracted

Family

gozi_rm3

Attributes
build
300854
exe_type
loader

Extracted

Family

gozi_rm3

Botnet

202004141

C2

https://devicelease.xyz

Attributes
build
300854
dga_base_url
constitution.org/usdeclar.txt
dga_crc
0x4eb7d2ca
dga_season
10
dga_tlds
com
ru
org
exe_type
loader
server_id
12
url_path
index.htm
rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Modifies Internet Explorer settings ⋅ 1 TTPs 64 IoCs
  • Suspicious use of FindShellTrayWindow ⋅ 7 IoCs
  • Suspicious use of SetWindowsHookEx ⋅ 28 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3be1dd63db308b92cc3704faa396da6b544f3ab4e212f62de3aab9326229be1.exe
    "C:\Users\Admin\AppData\Local\Temp\b3be1dd63db308b92cc3704faa396da6b544f3ab4e212f62de3aab9326229be1.exe"
    PID:1448
  • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
    "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
    PID:1960
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    Modifies Internet Explorer settings
    Suspicious use of FindShellTrayWindow
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:2384
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2384 CREDAT:17410 /prefetch:2
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4204
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2384 CREDAT:82950 /prefetch:2
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3232
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    Modifies Internet Explorer settings
    Suspicious use of FindShellTrayWindow
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2912 CREDAT:17410 /prefetch:2
      Suspicious use of SetWindowsHookEx
      PID:5020
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    Modifies Internet Explorer settings
    Suspicious use of FindShellTrayWindow
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:2060
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2060 CREDAT:17410 /prefetch:2
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4360
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    Modifies Internet Explorer settings
    Suspicious use of FindShellTrayWindow
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1708 CREDAT:17410 /prefetch:2
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3912
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    Modifies Internet Explorer settings
    Suspicious use of FindShellTrayWindow
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:4708
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4708 CREDAT:17410 /prefetch:2
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:880
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    Modifies Internet Explorer settings
    Suspicious use of FindShellTrayWindow
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1504 CREDAT:17410 /prefetch:2
      Suspicious use of SetWindowsHookEx
      PID:4456

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

        Discovery

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                      Privilege Escalation

                        Replay Monitor

                        00:00 00:00

                        Downloads

                        • memory/1448-130-0x00000000006A0000-0x00000000006B1000-memory.dmp
                        • memory/1448-136-0x0000000000680000-0x000000000068C000-memory.dmp
                        • memory/1448-137-0x0000000000400000-0x00000000004E5000-memory.dmp