Analysis

  • max time kernel
    125s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2023 01:29

General

  • Target

    Audit_XINHAITONG22_1004738_1_2023092210.exe

  • Size

    857KB

  • MD5

    64baca6856ba84fe379eb4d720859edc

  • SHA1

    a234caa5425fcbc4e783dd00722156e533bd6def

  • SHA256

    ab3eb849490834407657e205832591cfa3c3504ed9373bf53396015d62b9e549

  • SHA512

    53449f2ed2e397adadb3a48d561c864734961c40392c2f8f3a8ed6c84afd6db8008fc633405a065cc07a51f8396015f7bb8b3b7c1c4cb8aecbbc1a588b5d53db

  • SSDEEP

    12288:DO5nF8pREGHTbSGWJ7Usocar3S6KMvbPt1w6+BIe4+YnKc5lCzXwPH2gYDMID:Km39s2LwMzPtNPLPe8H6MI

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 1 IoCs

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

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe
    "C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sAyncmK.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2640
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sAyncmK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8DA9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2204
    • C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe
      "C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lm0dpmrd.xb2.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8DA9.tmp

    Filesize

    1KB

    MD5

    a688f5c6479b0a6d97bb0a7122723481

    SHA1

    44c4df9b0fa6383edf7bd6b8549dc6b8e29fc0f3

    SHA256

    4241eeb76e5979e90850c6667b335e21b4f256e3abe45f58396b7cd341af72a5

    SHA512

    16baa86220010d152478f29855584a2611aef3b928ea6190cf6b87f93d467c4288ea3ac0bbbdb97197ce20c9459bf178be3c94b1ec7079282c74da3b7c536a22

  • memory/2640-36-0x0000000005E80000-0x00000000061D4000-memory.dmp

    Filesize

    3.3MB

  • memory/2640-58-0x0000000007560000-0x000000000757A000-memory.dmp

    Filesize

    104KB

  • memory/2640-68-0x00000000748B0000-0x0000000075060000-memory.dmp

    Filesize

    7.7MB

  • memory/2640-65-0x0000000007880000-0x0000000007888000-memory.dmp

    Filesize

    32KB

  • memory/2640-64-0x00000000078A0000-0x00000000078BA000-memory.dmp

    Filesize

    104KB

  • memory/2640-63-0x00000000077A0000-0x00000000077B4000-memory.dmp

    Filesize

    80KB

  • memory/2640-62-0x0000000007790000-0x000000000779E000-memory.dmp

    Filesize

    56KB

  • memory/2640-61-0x0000000007760000-0x0000000007771000-memory.dmp

    Filesize

    68KB

  • memory/2640-60-0x00000000077E0000-0x0000000007876000-memory.dmp

    Filesize

    600KB

  • memory/2640-15-0x0000000004C60000-0x0000000004C96000-memory.dmp

    Filesize

    216KB

  • memory/2640-17-0x0000000005400000-0x0000000005A28000-memory.dmp

    Filesize

    6.2MB

  • memory/2640-59-0x00000000075D0000-0x00000000075DA000-memory.dmp

    Filesize

    40KB

  • memory/2640-18-0x0000000005250000-0x0000000005272000-memory.dmp

    Filesize

    136KB

  • memory/2640-57-0x0000000007BA0000-0x000000000821A000-memory.dmp

    Filesize

    6.5MB

  • memory/2640-21-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

    Filesize

    64KB

  • memory/2640-19-0x00000000748B0000-0x0000000075060000-memory.dmp

    Filesize

    7.7MB

  • memory/2640-56-0x0000000007200000-0x00000000072A3000-memory.dmp

    Filesize

    652KB

  • memory/2640-23-0x0000000005B30000-0x0000000005B96000-memory.dmp

    Filesize

    408KB

  • memory/2640-55-0x00000000067E0000-0x00000000067FE000-memory.dmp

    Filesize

    120KB

  • memory/2640-25-0x0000000005BA0000-0x0000000005C06000-memory.dmp

    Filesize

    408KB

  • memory/2640-47-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

    Filesize

    64KB

  • memory/2640-44-0x0000000071050000-0x000000007109C000-memory.dmp

    Filesize

    304KB

  • memory/2640-43-0x0000000006800000-0x0000000006832000-memory.dmp

    Filesize

    200KB

  • memory/2640-42-0x000000007EFC0000-0x000000007EFD0000-memory.dmp

    Filesize

    64KB

  • memory/2640-22-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

    Filesize

    64KB

  • memory/2640-40-0x0000000006220000-0x000000000623E000-memory.dmp

    Filesize

    120KB

  • memory/2640-41-0x00000000065E0000-0x000000000662C000-memory.dmp

    Filesize

    304KB

  • memory/4936-7-0x0000000005B90000-0x0000000005B98000-memory.dmp

    Filesize

    32KB

  • memory/4936-3-0x0000000005930000-0x00000000059C2000-memory.dmp

    Filesize

    584KB

  • memory/4936-2-0x0000000005EE0000-0x0000000006484000-memory.dmp

    Filesize

    5.6MB

  • memory/4936-24-0x00000000058E0000-0x00000000058F0000-memory.dmp

    Filesize

    64KB

  • memory/4936-0-0x0000000000DE0000-0x0000000000EBC000-memory.dmp

    Filesize

    880KB

  • memory/4936-1-0x00000000748B0000-0x0000000075060000-memory.dmp

    Filesize

    7.7MB

  • memory/4936-10-0x0000000008400000-0x000000000849C000-memory.dmp

    Filesize

    624KB

  • memory/4936-16-0x00000000748B0000-0x0000000075060000-memory.dmp

    Filesize

    7.7MB

  • memory/4936-4-0x00000000058E0000-0x00000000058F0000-memory.dmp

    Filesize

    64KB

  • memory/4936-39-0x00000000748B0000-0x0000000075060000-memory.dmp

    Filesize

    7.7MB

  • memory/4936-8-0x0000000005BA0000-0x0000000005BAA000-memory.dmp

    Filesize

    40KB

  • memory/4936-9-0x0000000008650000-0x00000000086DE000-memory.dmp

    Filesize

    568KB

  • memory/4936-5-0x00000000058A0000-0x00000000058AA000-memory.dmp

    Filesize

    40KB

  • memory/4936-6-0x0000000005B60000-0x0000000005B78000-memory.dmp

    Filesize

    96KB

  • memory/5028-70-0x00000000748B0000-0x0000000075060000-memory.dmp

    Filesize

    7.7MB

  • memory/5028-35-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/5028-71-0x00000000059A0000-0x00000000059B0000-memory.dmp

    Filesize

    64KB

  • memory/5028-38-0x00000000748B0000-0x0000000075060000-memory.dmp

    Filesize

    7.7MB

  • memory/5028-69-0x0000000007240000-0x0000000007290000-memory.dmp

    Filesize

    320KB