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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
    29/05/2024, 01:19

General

  • Target

    3a23505e90df25fe34b92eebb73fa08d4571d3f12b12807711325d16a3ec2db9.xlam

  • Size

    14KB

  • MD5

    613bc31f40a70c787c70e5fa82ba3da6

  • SHA1

    d689a647a7254e5a9d349a61e951c0629b43a473

  • SHA256

    3a23505e90df25fe34b92eebb73fa08d4571d3f12b12807711325d16a3ec2db9

  • SHA512

    2495e1cc29f8cc5749365574637dc684c48e2fba9013b4b0b226208b793690951e35ceb813723d72343128c853f1705c3964a4a36bc529bbf4ef1e8f50ebab17

  • SSDEEP

    384:q4hFXIZwODvsHq7EVKn9keeGZkauRqKos/FUK:5hNIjJHnue/ka1KosuK

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 3 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 3 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 3 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 3 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 3 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 3 IoCs
  • Blocklisted process makes network request 7 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\3a23505e90df25fe34b92eebb73fa08d4571d3f12b12807711325d16a3ec2db9.xlam
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2820
  • 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:2396
    • C:\Users\Admin\AppData\Local\Temp\XZqdfhypv.exe
      "C:\Users\Admin\AppData\Local\Temp\XZqdfhypv.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:2004
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\XZqdfhypv.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    342B

    MD5

    c880b5da2d43a056f8eec23094cf054a

    SHA1

    578ea4c08cbfeb65a75ed0881724188ce114b6ac

    SHA256

    169835e785f3c3550732a73418c1010794042e02db45c83d021ac0907e506a30

    SHA512

    7e2c788237488c8832f2439449dc7903398a6b4278bbd0d0fcc8fc7b011f8be983a11a3613858f27efd7bd46d112e8d4a77f6bc2a380914f7b68723f3b824daa

  • C:\Users\Admin\AppData\Local\Temp\Cab3390.tmp

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar3481.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Users\Admin\AppData\Local\Temp\XZqdfhypv.exe

    Filesize

    1011KB

    MD5

    d09ddbd38b06d082c36ba91814c4ea12

    SHA1

    63c78b2dbc4000e322547520b58b666676c3ee4d

    SHA256

    c1dc498ac1f64dcf63b7c536c5e95e2561054a3ae4e95df36975426032f680ac

    SHA512

    11fca048e084ab54ad20169d99ecacaa26f955d32d6795346e080faefbfd0d3a43bebd6cbaadb238735d0940367711c5ef61996c92f191151c6e220aa582c444

  • memory/1060-114-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1060-113-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1060-112-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-1-0x000000007258D000-0x0000000072598000-memory.dmp

    Filesize

    44KB

  • memory/2820-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2820-115-0x000000007258D000-0x0000000072598000-memory.dmp

    Filesize

    44KB

  • memory/2820-117-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2820-118-0x000000007258D000-0x0000000072598000-memory.dmp

    Filesize

    44KB