Analysis

  • max time kernel
    135s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 10:14

General

  • Target

    FW CMA SHZ Freight invoice CHN1080769.exe

  • Size

    683KB

  • MD5

    3288dbaae811a799ea563988c0d78315

  • SHA1

    48802f823b253a45d829b15bd0802db54ce35993

  • SHA256

    e0e366834de34a6e93035842b46662c2b1b05d350c1218953f8faab632ead3ae

  • SHA512

    fc6b2c90ad9c9f2b906a6247230d2f71a0cbe764b0e3ea2c67d49477fb4f81580dd96a5ba2e3d11e92b15f8421b48e8afd7bd06e6d5ee009b8babfc1acf9cc80

  • SSDEEP

    12288:3I23I9uvcHdMFGNX/m7EA++tat0kanlWimxg8NBcHYPLICoPw896GpQkR:YYyK+wGGs+sY8283c4THew8EG9

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FW CMA SHZ Freight invoice CHN1080769.exe
    "C:\Users\Admin\AppData\Local\Temp\FW CMA SHZ Freight invoice CHN1080769.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\FW CMA SHZ Freight invoice CHN1080769.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4084
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HDTjheWPb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HDTjheWPb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp881C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:796
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
    Filesize

    2KB

    MD5

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    Filesize

    18KB

    MD5

    eb3cb9bfbc72aa1701b92c14bf908ae9

    SHA1

    d1c86ad3aacd015b7f3f3fce699c0e7602c67c4d

    SHA256

    23ef2e4fec1ba12ddbfb2c1f64370a9dc368d41477935bfcdc292d06dc29bc8a

    SHA512

    dc14aed1f4571c37875577047de16f937bfe8f5c38fc545ee7f57df4f7ff57f4b147a1b3e03f94a24a7e9511defbbe0876e21aee9ca2a1f106d3c9aa00ada1b4

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vtfn04w5.prh.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp881C.tmp
    Filesize

    1KB

    MD5

    75d2e3828148e9bd04ff1ac99d20d633

    SHA1

    02d8f00cdcf23b28e4e0ac1eda864f540626048e

    SHA256

    a30bd5e1baa8fe42ccbfdf96faa1741ead5b4258cd42168fe4d59a91c607c951

    SHA512

    7c5ccb927f8210ef7afd2e2e2aa9d52774eac833a703d1ebe959b2d8e976e5546e4dcfcd962f887fbc9f5c938832f8386e2a75b48e18b10e83bdc731aa7e3c7e

  • memory/3792-92-0x00000000061F0000-0x0000000006240000-memory.dmp
    Filesize

    320KB

  • memory/3792-25-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/4084-76-0x00000000070D0000-0x00000000070EA000-memory.dmp
    Filesize

    104KB

  • memory/4084-19-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4084-73-0x0000000006E20000-0x0000000006EC3000-memory.dmp
    Filesize

    652KB

  • memory/4084-54-0x0000000071840000-0x000000007188C000-memory.dmp
    Filesize

    304KB

  • memory/4084-80-0x00000000072D0000-0x00000000072E1000-memory.dmp
    Filesize

    68KB

  • memory/4084-16-0x0000000002470000-0x00000000024A6000-memory.dmp
    Filesize

    216KB

  • memory/4084-79-0x0000000007350000-0x00000000073E6000-memory.dmp
    Filesize

    600KB

  • memory/4084-18-0x0000000005020000-0x0000000005648000-memory.dmp
    Filesize

    6.2MB

  • memory/4084-17-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4084-45-0x0000000005880000-0x00000000058E6000-memory.dmp
    Filesize

    408KB

  • memory/4084-77-0x0000000007140000-0x000000000714A000-memory.dmp
    Filesize

    40KB

  • memory/4084-72-0x00000000062B0000-0x00000000062CE000-memory.dmp
    Filesize

    120KB

  • memory/4084-22-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4084-51-0x0000000005E50000-0x0000000005E9C000-memory.dmp
    Filesize

    304KB

  • memory/4084-26-0x0000000005650000-0x0000000005672000-memory.dmp
    Filesize

    136KB

  • memory/4084-49-0x00000000058F0000-0x0000000005C44000-memory.dmp
    Filesize

    3.3MB

  • memory/4084-91-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4084-29-0x00000000056F0000-0x0000000005756000-memory.dmp
    Filesize

    408KB

  • memory/4084-75-0x0000000007750000-0x0000000007DCA000-memory.dmp
    Filesize

    6.5MB

  • memory/4768-90-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4768-83-0x00000000075D0000-0x00000000075EA000-memory.dmp
    Filesize

    104KB

  • memory/4768-84-0x00000000075B0000-0x00000000075B8000-memory.dmp
    Filesize

    32KB

  • memory/4768-50-0x0000000005F60000-0x0000000005F7E000-memory.dmp
    Filesize

    120KB

  • memory/4768-24-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4768-21-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4768-81-0x00000000074C0000-0x00000000074CE000-memory.dmp
    Filesize

    56KB

  • memory/4768-82-0x00000000074D0000-0x00000000074E4000-memory.dmp
    Filesize

    80KB

  • memory/4768-53-0x0000000071840000-0x000000007188C000-memory.dmp
    Filesize

    304KB

  • memory/4768-52-0x0000000006EE0000-0x0000000006F12000-memory.dmp
    Filesize

    200KB

  • memory/4844-15-0x00000000751AE000-0x00000000751AF000-memory.dmp
    Filesize

    4KB

  • memory/4844-44-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4844-20-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4844-0-0x00000000751AE000-0x00000000751AF000-memory.dmp
    Filesize

    4KB

  • memory/4844-10-0x0000000008A00000-0x0000000008A9C000-memory.dmp
    Filesize

    624KB

  • memory/4844-9-0x00000000063C0000-0x0000000006444000-memory.dmp
    Filesize

    528KB

  • memory/4844-8-0x0000000004E50000-0x0000000004E60000-memory.dmp
    Filesize

    64KB

  • memory/4844-7-0x00000000050D0000-0x00000000050EA000-memory.dmp
    Filesize

    104KB

  • memory/4844-6-0x0000000005ED0000-0x0000000005F72000-memory.dmp
    Filesize

    648KB

  • memory/4844-5-0x00000000751A0000-0x0000000075950000-memory.dmp
    Filesize

    7.7MB

  • memory/4844-4-0x0000000004CB0000-0x0000000004CBA000-memory.dmp
    Filesize

    40KB

  • memory/4844-3-0x0000000004D10000-0x0000000004DA2000-memory.dmp
    Filesize

    584KB

  • memory/4844-2-0x0000000005220000-0x00000000057C4000-memory.dmp
    Filesize

    5.6MB

  • memory/4844-1-0x0000000000210000-0x00000000002BE000-memory.dmp
    Filesize

    696KB