Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-09-2024 01:24

General

  • Target

    Asco Valve Shanghai OrderPO-011024.exe

  • Size

    828KB

  • MD5

    9a60eaf7797d0888d2ee0361f21c0b81

  • SHA1

    922f6c8f286b435d7fb09e399f1562ec43bb62df

  • SHA256

    7f7bc308f1a31734af163c5b00fc0e1159d2ebdcebbe46b7c5113677f84fcea7

  • SHA512

    57234a89cd56509df48c253ce1484596a5e80550f00f8d932e8577ad69ee7fda853f3d7106f755c2343684de877b07717d9c1a7a9b0d6448cfcbe173bb67d604

  • SSDEEP

    12288:9xgX1QX7kIg7Htqmbif65YY2AKTLFarFdokODW15eP7r9r/+pppppppppppppppX:vUKkIgjZbfX2AKVarFdokSge1q

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Asco Valve Shanghai OrderPO-011024.exe
    "C:\Users\Admin\AppData\Local\Temp\Asco Valve Shanghai OrderPO-011024.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4260
    • 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\Asco Valve Shanghai OrderPO-011024.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3948
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nPKNUIybokG.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5072
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nPKNUIybokG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA31.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2448
    • C:\Users\Admin\AppData\Local\Temp\Asco Valve Shanghai OrderPO-011024.exe
      "C:\Users\Admin\AppData\Local\Temp\Asco Valve Shanghai OrderPO-011024.exe"
      2⤵
        PID:1276
      • C:\Users\Admin\AppData\Local\Temp\Asco Valve Shanghai OrderPO-011024.exe
        "C:\Users\Admin\AppData\Local\Temp\Asco Valve Shanghai OrderPO-011024.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:620

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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

      f8af366eca13793529b7350710d46526

      SHA1

      88f060ba4ceb859d2fa7bbd48581ef0220acfa4b

      SHA256

      9fb42063cf3d30ea060c14c97cf59ee6accd7f8742fcbdfdb38f691bdbf85bd5

      SHA512

      06b8094d053f980f8f1aecf193d817eb84229eae22d171bf8e0d112cdf48c0c1ff3891df79f70d786113e245f201b62f72d4bcd37c0c54a1bbf369834dbadca1

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qfnjgthd.pfp.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpEA31.tmp

      Filesize

      1KB

      MD5

      3402ff90eeb9face53101733e0353034

      SHA1

      31e25e7be0ecbf4544536e775410822927d3c6ec

      SHA256

      68ba77e8158a68d39ce11c35974fdfbe1fc0e88b3979a102538d876b7212e603

      SHA512

      152d6cad2567c230b5ab16ec80323c68db2522e0bfdd24ca706411581849fe5ee74023e691c23a25d64d014e650d874aa6795352cb6c81c8f16d9c6778c66af2

    • memory/620-90-0x0000000006320000-0x0000000006370000-memory.dmp

      Filesize

      320KB

    • memory/620-38-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/3948-22-0x0000000005D40000-0x0000000005DA6000-memory.dmp

      Filesize

      408KB

    • memory/3948-77-0x00000000079E0000-0x0000000007A76000-memory.dmp

      Filesize

      600KB

    • memory/3948-89-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/3948-81-0x0000000007AA0000-0x0000000007ABA000-memory.dmp

      Filesize

      104KB

    • memory/3948-82-0x0000000007A80000-0x0000000007A88000-memory.dmp

      Filesize

      32KB

    • memory/3948-15-0x0000000002B50000-0x0000000002B86000-memory.dmp

      Filesize

      216KB

    • memory/3948-16-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/3948-17-0x00000000055F0000-0x0000000005C18000-memory.dmp

      Filesize

      6.2MB

    • memory/3948-18-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/3948-79-0x0000000007990000-0x000000000799E000-memory.dmp

      Filesize

      56KB

    • memory/3948-80-0x00000000079A0000-0x00000000079B4000-memory.dmp

      Filesize

      80KB

    • memory/3948-76-0x00000000077D0000-0x00000000077DA000-memory.dmp

      Filesize

      40KB

    • memory/3948-63-0x0000000074CA0000-0x0000000074CEC000-memory.dmp

      Filesize

      304KB

    • memory/3948-23-0x0000000005DB0000-0x0000000005E16000-memory.dmp

      Filesize

      408KB

    • memory/3948-73-0x0000000007610000-0x00000000076B3000-memory.dmp

      Filesize

      652KB

    • memory/3948-27-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/3948-50-0x0000000006440000-0x000000000648C000-memory.dmp

      Filesize

      304KB

    • memory/3948-49-0x0000000006420000-0x000000000643E000-memory.dmp

      Filesize

      120KB

    • memory/4260-7-0x000000007443E000-0x000000007443F000-memory.dmp

      Filesize

      4KB

    • memory/4260-4-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/4260-48-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/4260-1-0x0000000000830000-0x0000000000904000-memory.dmp

      Filesize

      848KB

    • memory/4260-2-0x0000000005940000-0x0000000005EE4000-memory.dmp

      Filesize

      5.6MB

    • memory/4260-3-0x0000000005390000-0x0000000005422000-memory.dmp

      Filesize

      584KB

    • memory/4260-0-0x000000007443E000-0x000000007443F000-memory.dmp

      Filesize

      4KB

    • memory/4260-5-0x0000000005310000-0x000000000531A000-memory.dmp

      Filesize

      40KB

    • memory/4260-8-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/4260-9-0x0000000006CB0000-0x0000000006D32000-memory.dmp

      Filesize

      520KB

    • memory/4260-10-0x0000000009320000-0x00000000093BC000-memory.dmp

      Filesize

      624KB

    • memory/4260-6-0x0000000006BF0000-0x0000000006C00000-memory.dmp

      Filesize

      64KB

    • memory/5072-51-0x00000000076C0000-0x00000000076F2000-memory.dmp

      Filesize

      200KB

    • memory/5072-21-0x0000000005460000-0x0000000005482000-memory.dmp

      Filesize

      136KB

    • memory/5072-78-0x0000000007A50000-0x0000000007A61000-memory.dmp

      Filesize

      68KB

    • memory/5072-74-0x0000000007EA0000-0x000000000851A000-memory.dmp

      Filesize

      6.5MB

    • memory/5072-19-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/5072-75-0x0000000007850000-0x000000000786A000-memory.dmp

      Filesize

      104KB

    • memory/5072-62-0x00000000076A0000-0x00000000076BE000-memory.dmp

      Filesize

      120KB

    • memory/5072-85-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/5072-24-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB

    • memory/5072-52-0x0000000074CA0000-0x0000000074CEC000-memory.dmp

      Filesize

      304KB

    • memory/5072-26-0x0000000005DE0000-0x0000000006134000-memory.dmp

      Filesize

      3.3MB

    • memory/5072-25-0x0000000074430000-0x0000000074BE0000-memory.dmp

      Filesize

      7.7MB