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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 08:04

General

  • Target

    scan_file34975UU.scr.exe

  • Size

    748KB

  • MD5

    9c41200534d2961710d7686f23fd8853

  • SHA1

    e427669e7752d41b7a833c796bb4028f7260f04d

  • SHA256

    b066d69e936c241d52a4dc708223002e8843385d5e04faece3016abd4027c215

  • SHA512

    32bb1f6f63734451652f65cff8d0acf9b61a8037c27570d73fb4a1b022d3fe046f9b71135741357dfcfc9733656cff5ed8d02c55b949accce718a7dd17fcd8fc

  • SSDEEP

    12288:5697qm4w3LOFEQ+0/Vl4L29bhHxe4io6l7EOfhiaaE5qIGkR:Y2mJ3RKjFVwl4+nqId

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

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.

  • 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 3 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).

  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.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:3668
    • 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\scan_file34975UU.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2276
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JhrcdGxufUIh.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1924
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JhrcdGxufUIh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4541.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4480
    • C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"
      2⤵
        PID:3476
      • C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe
        "C:\Users\Admin\AppData\Local\Temp\scan_file34975UU.scr.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3152

    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\CLR_v4.0_32\UsageLogs\scan_file34975UU.scr.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

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

      Filesize

      18KB

      MD5

      bc1eff6e464c42148f94ff57ca97ea1b

      SHA1

      fa783eb8f634536376031263f0402b7c728f07c4

      SHA256

      746181f8c49ebcffa73a26c71cb41187d16304725d4279d345216ad63d6f5f50

      SHA512

      42cb66e72a5965b3f6ab90313ab302e177a78e279ab35943d75bec87d11d9f41304f1716b3d873e44b8fab6d6775151396f39e9c7ece8e0ef10392403a9b2a09

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2bzr4luw.nir.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp4541.tmp

      Filesize

      1KB

      MD5

      f5a199d824be0ee9f0f3892d0a1842b1

      SHA1

      7a454c0f0c0c2f9b45303cac1b4b7902a8a0aa0f

      SHA256

      a6f34033b63ca8951784724288b5626a1aed2d70e5a550fa67a5af336b6aee43

      SHA512

      e64e61cb0e24005d51780b6b84ff2109c19962ea9ace8c233295529d2fc89d12eec2aebb27799c5632b47c6e76c6f9ca3731deaea1a3d62f51f1a9bff501e69e

    • memory/1924-74-0x0000000007B00000-0x000000000817A000-memory.dmp

      Filesize

      6.5MB

    • memory/1924-51-0x0000000007120000-0x0000000007152000-memory.dmp

      Filesize

      200KB

    • memory/1924-78-0x00000000076C0000-0x00000000076D1000-memory.dmp

      Filesize

      68KB

    • memory/1924-76-0x0000000007530000-0x000000000753A000-memory.dmp

      Filesize

      40KB

    • memory/1924-75-0x00000000074C0000-0x00000000074DA000-memory.dmp

      Filesize

      104KB

    • memory/1924-81-0x0000000007800000-0x000000000781A000-memory.dmp

      Filesize

      104KB

    • memory/1924-72-0x0000000007360000-0x000000000737E000-memory.dmp

      Filesize

      120KB

    • memory/1924-79-0x00000000076F0000-0x00000000076FE000-memory.dmp

      Filesize

      56KB

    • memory/1924-52-0x0000000071810000-0x000000007185C000-memory.dmp

      Filesize

      304KB

    • memory/1924-50-0x00000000061A0000-0x00000000061EC000-memory.dmp

      Filesize

      304KB

    • memory/1924-19-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-82-0x00000000077E0000-0x00000000077E8000-memory.dmp

      Filesize

      32KB

    • memory/1924-49-0x0000000006170000-0x000000000618E000-memory.dmp

      Filesize

      120KB

    • memory/1924-85-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-28-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2276-16-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2276-73-0x00000000075A0000-0x0000000007643000-memory.dmp

      Filesize

      652KB

    • memory/2276-89-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2276-25-0x0000000005950000-0x00000000059B6000-memory.dmp

      Filesize

      408KB

    • memory/2276-24-0x00000000057B0000-0x0000000005816000-memory.dmp

      Filesize

      408KB

    • memory/2276-23-0x0000000005510000-0x0000000005532000-memory.dmp

      Filesize

      136KB

    • memory/2276-80-0x0000000007B30000-0x0000000007B44000-memory.dmp

      Filesize

      80KB

    • memory/2276-21-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2276-18-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2276-17-0x00000000059D0000-0x0000000005FF8000-memory.dmp

      Filesize

      6.2MB

    • memory/2276-77-0x0000000007B70000-0x0000000007C06000-memory.dmp

      Filesize

      600KB

    • memory/2276-62-0x0000000071810000-0x000000007185C000-memory.dmp

      Filesize

      304KB

    • memory/2276-15-0x0000000002C90000-0x0000000002CC6000-memory.dmp

      Filesize

      216KB

    • memory/2276-29-0x0000000006000000-0x0000000006354000-memory.dmp

      Filesize

      3.3MB

    • memory/3152-22-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3152-90-0x0000000006E60000-0x0000000006EB0000-memory.dmp

      Filesize

      320KB

    • memory/3668-0-0x000000007514E000-0x000000007514F000-memory.dmp

      Filesize

      4KB

    • memory/3668-10-0x000000000D280000-0x000000000D31C000-memory.dmp

      Filesize

      624KB

    • memory/3668-7-0x000000007514E000-0x000000007514F000-memory.dmp

      Filesize

      4KB

    • memory/3668-6-0x0000000007810000-0x000000000782E000-memory.dmp

      Filesize

      120KB

    • memory/3668-8-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3668-5-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

      Filesize

      40KB

    • memory/3668-4-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3668-3-0x0000000004F00000-0x0000000004F92000-memory.dmp

      Filesize

      584KB

    • memory/3668-2-0x0000000005590000-0x0000000005B34000-memory.dmp

      Filesize

      5.6MB

    • memory/3668-30-0x0000000075140000-0x00000000758F0000-memory.dmp

      Filesize

      7.7MB

    • memory/3668-1-0x00000000004B0000-0x000000000056C000-memory.dmp

      Filesize

      752KB

    • memory/3668-9-0x00000000048F0000-0x0000000004974000-memory.dmp

      Filesize

      528KB