Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    11-12-2023 15:14

General

  • Target

    swift copy.xls

  • Size

    1.1MB

  • MD5

    66ca72c4462eaa25b60e6b763232a869

  • SHA1

    5d867073ff9b46de8b7f205cad708c656fa35d05

  • SHA256

    220fe5d95262f3b41e254a52b03b54e809ca4ef2ac80c7fb2048513ce34721dc

  • SHA512

    2b3fffc7e555583d1d7d4f2e9eed8d54422cd555c1b5009abfd34bee429772871c9df9d44e948292af08d5e62d11dee4aab8afdf6ec7d5c272ec126265092ecc

  • SSDEEP

    24576:lw6/6ZyXAXZS0IAXZSpkw6/GZyBcUfEx3jj6VDNanGdvKw2M8:W6/kBEsE56/QiffavMDNXCx1

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 23 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\swift copy.xls"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2244
  • 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:2700
    • C:\Users\Admin\AppData\Roaming\wlanext.exe
      "C:\Users\Admin\AppData\Roaming\wlanext.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:672
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:464

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\28DE92E7.emf

      Filesize

      526KB

      MD5

      59b9d0ea751ef18bd4ad542cd66e74ad

      SHA1

      8fc35ab264c02d797aa89c47a7a3bde70c01abe7

      SHA256

      56e18ed63d7f556fb497445110b4b2185eb7eb6d6040890e287c62f957992d27

      SHA512

      47782e8f09e38704629df8ab4ebdd355be5817e4af1f41a705bd9ebad5dcc66d09c3084bed6ada9b519ddae99132d0d1a52af56f44ffae5f30433d8a9c36e44a

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\B3061AFE.emf

      Filesize

      1.4MB

      MD5

      1fcb3f34b5588f6a647a06dff1811bf9

      SHA1

      1f5ef0e6e41c14795decedcefc883ab9000fac9a

      SHA256

      a99e8172248dac0b2a6243d06a862901989857b0c2ecbed5f25ddb0d1a95154e

      SHA512

      47e951583afff444f9adb09beab0d83f9792b46d3e1fabf05d21068218d64b3cba48e2dc22fe0a7bd3252a0e0c8866faa244b5dc3784bd336ecbc9f2924fb2aa

    • C:\Users\Admin\AppData\Roaming\wlanext.exe

      Filesize

      614KB

      MD5

      872cb6f0e8451a60e514851cdd2aa3d3

      SHA1

      ce73360c76ba965ec74704e97d169eaf2cb5afc5

      SHA256

      125a0c5ed0934067110aaaf3b728d2509a12aefa9b820b8964ba303396e3c7b4

      SHA512

      b8a772a531e61eb3444bc0f2ae5c8037acba781b4319b5c2e1760d1267bf279d1572c3917c51127b172a033b5b43efa9f6dd86039a877c56c5077c6fdb8e42be

    • memory/464-37-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/464-39-0x000000006C850000-0x000000006CF3E000-memory.dmp

      Filesize

      6.9MB

    • memory/464-41-0x000000006C850000-0x000000006CF3E000-memory.dmp

      Filesize

      6.9MB

    • memory/464-40-0x0000000004900000-0x0000000004940000-memory.dmp

      Filesize

      256KB

    • memory/464-35-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/464-33-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/464-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/464-30-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/464-25-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/464-27-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/464-29-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2244-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2244-57-0x00000000726FD000-0x0000000072708000-memory.dmp

      Filesize

      44KB

    • memory/2244-1-0x00000000726FD000-0x0000000072708000-memory.dmp

      Filesize

      44KB

    • memory/2244-24-0x00000000726FD000-0x0000000072708000-memory.dmp

      Filesize

      44KB

    • memory/2244-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2744-21-0x00000000002B0000-0x00000000002B8000-memory.dmp

      Filesize

      32KB

    • memory/2744-20-0x00000000005D0000-0x00000000005E8000-memory.dmp

      Filesize

      96KB

    • memory/2744-38-0x000000006C850000-0x000000006CF3E000-memory.dmp

      Filesize

      6.9MB

    • memory/2744-19-0x0000000004D70000-0x0000000004DB0000-memory.dmp

      Filesize

      256KB

    • memory/2744-17-0x0000000000170000-0x0000000000210000-memory.dmp

      Filesize

      640KB

    • memory/2744-18-0x000000006C850000-0x000000006CF3E000-memory.dmp

      Filesize

      6.9MB

    • memory/2744-22-0x0000000000420000-0x000000000042A000-memory.dmp

      Filesize

      40KB

    • memory/2744-23-0x0000000007900000-0x000000000797A000-memory.dmp

      Filesize

      488KB