Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 18:40

General

  • Target

    Ziraat Bankası Swift Mesajı.xlam

  • Size

    14KB

  • MD5

    b21f485299919357e9a90b9ab275d23a

  • SHA1

    f70d73fd6646a872428f9082549aebfad445d371

  • SHA256

    514266ecbe03893240e9d85f2d3ffdecc2ab09f1ac35cc312ee4112e02d24fe3

  • SHA512

    fb0e94219af45c5c8fe599b74dd139564b885a842c999bd2422d658a12d74446fface38235902493c9b7bff576226e55dd21d1b149645d868479739842b57034

  • SSDEEP

    384:P4+dXIZwO4vs7zR9IoFTbBgaWab88citqhkA6:g+lIYgIoFTbdWao8/qhkA6

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Blocklisted process makes network request 8 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Ziraat Bankası Swift Mesajı.xlam"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2240
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Users\Admin\AppData\Local\Temp\wswgopxdji2s.exe
      "C:\Users\Admin\AppData\Local\Temp\wswgopxdji2s.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\wswgopxdji2s.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    5235007afcda1bc62930977ce1a411b6

    SHA1

    d474c7dbda184b5678ae13a7fef01c4b6d728ebe

    SHA256

    e1a3e14771254eea24f5c4a15af9af74bfe3c1b185d1d766e55fef958e7938d5

    SHA512

    a70d30a6cb0aad4e2a2219201ee05ea2aa0ae5eb4ec094a48a3d2c80fa1fd80348bc47fb6628c5b794d19f52bd98a14a29a07184f7db5dd1c341a1ab896c7a73

  • C:\Users\Admin\AppData\Local\Temp\Cab3EC7.tmp

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar3F18.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\wswgopxdji2s.exe

    Filesize

    1012KB

    MD5

    66e5c9de148b496d53b2968c6a03c257

    SHA1

    2431d4c9028ef358e0b47a6997422457696cc31a

    SHA256

    4f57445ce960af0f5b9bc7386e6935226955a1221637225bc1d6533d6bd2b88c

    SHA512

    859931dd90b3d01853af09f4d914ee4c0ed2e01cbe3b20618f6144772d4d5017a60364a7c24b2b59524f529985ed35e357e463115c4d856874c94d959aa62ae5

  • memory/1768-102-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1768-103-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1768-104-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2240-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2240-1-0x000000007267D000-0x0000000072688000-memory.dmp

    Filesize

    44KB

  • memory/2240-105-0x000000007267D000-0x0000000072688000-memory.dmp

    Filesize

    44KB

  • memory/2240-107-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2240-108-0x000000007267D000-0x0000000072688000-memory.dmp

    Filesize

    44KB