Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2023 19:22

General

  • Target

    aa229130ed51294a06ff9dd26a0891c5da383cda41ceb0cf49e0878eb0ee021bexe.exe

  • Size

    886KB

  • MD5

    088c8c2c2c8d6b7708c8c01fb400b9a8

  • SHA1

    f00831285d28f1a214afd8f6237fe5e5763d2b71

  • SHA256

    aa229130ed51294a06ff9dd26a0891c5da383cda41ceb0cf49e0878eb0ee021b

  • SHA512

    4958e80a06b48a3661671ae3a2906ebbaf7d7fde60d5c8ebb0fa7db74f8f472b8536867eb3fb329032759970ac92a13784f1c094ef69e48cc14956ca906a29bd

  • SSDEEP

    24576:EaMO8R992kY3dIhSElcdSUi/RGaq2BvoAVpTqh1q:vj8LLY3KhtysRdDTd

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.

  • 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).

  • Program crash 1 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa229130ed51294a06ff9dd26a0891c5da383cda41ceb0cf49e0878eb0ee021bexe.exe
    "C:\Users\Admin\AppData\Local\Temp\aa229130ed51294a06ff9dd26a0891c5da383cda41ceb0cf49e0878eb0ee021bexe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5084
    • 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\aa229130ed51294a06ff9dd26a0891c5da383cda41ceb0cf49e0878eb0ee021bexe.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1520
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NhTxRCnbW.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:640
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NhTxRCnbW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFABB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3792
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4780
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 1812
        3⤵
        • Program crash
        PID:1996
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4780 -ip 4780
    1⤵
      PID:2220

    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

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      Filesize

      18KB

      MD5

      4622b45180495cc812d6414857f0f1c9

      SHA1

      28d283c7fea7c1db8d747924714dc8a501a589dd

      SHA256

      6fe83d8c0f41d274d0db714265da8b3e382eb76828786843afff076e1c2b8006

      SHA512

      d85fd5f906d88c5d6b7af2f215ddc0a60b4e19ec9a0697a5ad179c4cc1f3029b9a8dda24e1e3c7d61c61ef297712e4102478d4d47b3d9ebb4ab1f91eaed97624

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0zr2wcqk.ne1.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      1KB

      MD5

      bf9f282d6b8655c78e7dbaaefcf26d0a

      SHA1

      8cf9f668b2c6aa864f6a7cadf2aef769c83ccb2e

      SHA256

      e87bdc5176c0a331e40166f4895f74dd670d1aca13b412f7f0287d053639af7b

      SHA512

      af9b99830dd53bd2a930b66c48217d8c96fdbab0f46eca28be59a6a2bc23802f179890018bd5409e8fb43c26a6bf20c28881cd87e54fdc5cd16adf11e0f83fd6

    • memory/640-70-0x000000007F950000-0x000000007F960000-memory.dmp

      Filesize

      64KB

    • memory/640-86-0x00000000073D0000-0x00000000073E1000-memory.dmp

      Filesize

      68KB

    • memory/640-82-0x0000000007810000-0x0000000007E8A000-memory.dmp

      Filesize

      6.5MB

    • memory/640-56-0x0000000006440000-0x0000000006472000-memory.dmp

      Filesize

      200KB

    • memory/640-21-0x00000000050F0000-0x0000000005718000-memory.dmp

      Filesize

      6.2MB

    • memory/640-59-0x00000000710A0000-0x00000000710EC000-memory.dmp

      Filesize

      304KB

    • memory/640-54-0x0000000002640000-0x0000000002650000-memory.dmp

      Filesize

      64KB

    • memory/640-90-0x00000000074F0000-0x00000000074F8000-memory.dmp

      Filesize

      32KB

    • memory/640-31-0x0000000005890000-0x0000000005BE4000-memory.dmp

      Filesize

      3.3MB

    • memory/640-27-0x0000000005080000-0x00000000050E6000-memory.dmp

      Filesize

      408KB

    • memory/640-96-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/640-22-0x0000000002640000-0x0000000002650000-memory.dmp

      Filesize

      64KB

    • memory/640-20-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/1520-18-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/1520-52-0x00000000062D0000-0x00000000062EE000-memory.dmp

      Filesize

      120KB

    • memory/1520-84-0x0000000007640000-0x000000000764A000-memory.dmp

      Filesize

      40KB

    • memory/1520-23-0x00000000029F0000-0x0000000002A00000-memory.dmp

      Filesize

      64KB

    • memory/1520-26-0x0000000005A40000-0x0000000005A62000-memory.dmp

      Filesize

      136KB

    • memory/1520-17-0x00000000029A0000-0x00000000029D6000-memory.dmp

      Filesize

      216KB

    • memory/1520-69-0x0000000007230000-0x000000000724E000-memory.dmp

      Filesize

      120KB

    • memory/1520-28-0x0000000005C80000-0x0000000005CE6000-memory.dmp

      Filesize

      408KB

    • memory/1520-81-0x00000000072A0000-0x0000000007343000-memory.dmp

      Filesize

      652KB

    • memory/1520-97-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/1520-19-0x00000000029F0000-0x0000000002A00000-memory.dmp

      Filesize

      64KB

    • memory/1520-89-0x0000000007910000-0x000000000792A000-memory.dmp

      Filesize

      104KB

    • memory/1520-85-0x0000000007850000-0x00000000078E6000-memory.dmp

      Filesize

      600KB

    • memory/1520-83-0x00000000075D0000-0x00000000075EA000-memory.dmp

      Filesize

      104KB

    • memory/1520-53-0x0000000006300000-0x000000000634C000-memory.dmp

      Filesize

      304KB

    • memory/1520-88-0x0000000007810000-0x0000000007824000-memory.dmp

      Filesize

      80KB

    • memory/1520-55-0x00000000029F0000-0x0000000002A00000-memory.dmp

      Filesize

      64KB

    • memory/1520-58-0x00000000710A0000-0x00000000710EC000-memory.dmp

      Filesize

      304KB

    • memory/1520-57-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/1520-87-0x0000000007800000-0x000000000780E000-memory.dmp

      Filesize

      56KB

    • memory/1520-80-0x000000007F350000-0x000000007F360000-memory.dmp

      Filesize

      64KB

    • memory/4780-51-0x00000000054E0000-0x00000000054F0000-memory.dmp

      Filesize

      64KB

    • memory/4780-30-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/4780-25-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4780-98-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/5084-11-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/5084-6-0x0000000005EB0000-0x0000000005ECA000-memory.dmp

      Filesize

      104KB

    • memory/5084-7-0x0000000006AB0000-0x0000000006AB8000-memory.dmp

      Filesize

      32KB

    • memory/5084-8-0x0000000006AC0000-0x0000000006ACA000-memory.dmp

      Filesize

      40KB

    • memory/5084-5-0x0000000005910000-0x000000000591A000-memory.dmp

      Filesize

      40KB

    • memory/5084-9-0x0000000006D70000-0x0000000006DEC000-memory.dmp

      Filesize

      496KB

    • memory/5084-10-0x000000000AC20000-0x000000000ACBC000-memory.dmp

      Filesize

      624KB

    • memory/5084-41-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/5084-4-0x0000000005A80000-0x0000000005A90000-memory.dmp

      Filesize

      64KB

    • memory/5084-3-0x0000000005770000-0x0000000005802000-memory.dmp

      Filesize

      584KB

    • memory/5084-2-0x0000000005EF0000-0x0000000006494000-memory.dmp

      Filesize

      5.6MB

    • memory/5084-12-0x0000000005A80000-0x0000000005A90000-memory.dmp

      Filesize

      64KB

    • memory/5084-1-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/5084-0-0x0000000000CA0000-0x0000000000D84000-memory.dmp

      Filesize

      912KB