Analysis

  • max time kernel
    168s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2023 06:09

General

  • Target

    2b41382003c69ada2d3c768899538940.exe

  • Size

    997KB

  • MD5

    2b41382003c69ada2d3c768899538940

  • SHA1

    6b78aef7fb97eda6bf9ea0c8616d9bc72ed3d0ae

  • SHA256

    7124fb0df6155156b778221b452958443e0a683c3420b3a117ca20f87a1f963d

  • SHA512

    162630eece207a7133b738f0be00241fb57837f5cee21ae51fa4a7a927ea552f572fbc3b4dcf036bb43c8739b3d88cba3daa18c22f56d8f0890cec7c51d55973

  • SSDEEP

    12288:WzdNH2yKmUFr9iX6SAnXh35/dPbik5p3ffqht8vLxvWjfhdUCiLh14BcxxUdaBc9:W7U3iKXF5/dP2kXPBjxejpdLiIkUF

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b41382003c69ada2d3c768899538940.exe
    "C:\Users\Admin\AppData\Local\Temp\2b41382003c69ada2d3c768899538940.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1256
    • 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\2b41382003c69ada2d3c768899538940.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2284
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JJxFeLP.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4744
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JJxFeLP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE579.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4168
    • C:\Users\Admin\AppData\Local\Temp\2b41382003c69ada2d3c768899538940.exe
      "C:\Users\Admin\AppData\Local\Temp\2b41382003c69ada2d3c768899538940.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4836
    • C:\Users\Admin\AppData\Local\Temp\2b41382003c69ada2d3c768899538940.exe
      "C:\Users\Admin\AppData\Local\Temp\2b41382003c69ada2d3c768899538940.exe"
      2⤵
        PID:4288
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JJxFeLP.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4916

    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

      fca3f898e2afba075440bb35a50686b5

      SHA1

      7c8497a65d2c9fd77b8f0c5e7efc17a4400a9132

      SHA256

      657dd71f7412c6f6050885e09962d439947fbc9f0d6801d48c00f0de5ebeeefa

      SHA512

      2e2858fc950499ff4789ff9b20d82ca3306fd33f2a73d09dce06ef83234d83395f4ac574d0dd235b39652ab0b5cf790febb658297791ebbec768ff84dac16a6e

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jylu5dlo.0bf.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpE579.tmp

      Filesize

      1KB

      MD5

      c16cceb4922b38e70bd16690f92f251f

      SHA1

      180600e02eb0b7a752825b64c8e23d54952a8319

      SHA256

      a5bc5c54ba7a5b99b7dc5fe65fa5bda2e0fd9a558d7d4e5023eb042627da29fa

      SHA512

      ba2e47ac1f902f61d9e6f452be373f7bbfa6a4dd17803317ea4e1ad80829ff4fa11ec212b811a650df82b4a4b8ba0ad30ce17b884c31ab119572cf650b162795

    • memory/1256-8-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/1256-11-0x0000000000B50000-0x0000000000B8C000-memory.dmp

      Filesize

      240KB

    • memory/1256-6-0x0000000004DD0000-0x0000000004DDA000-memory.dmp

      Filesize

      40KB

    • memory/1256-7-0x0000000005050000-0x0000000005062000-memory.dmp

      Filesize

      72KB

    • memory/1256-4-0x0000000004EA0000-0x0000000004F3C000-memory.dmp

      Filesize

      624KB

    • memory/1256-9-0x0000000005070000-0x0000000005080000-memory.dmp

      Filesize

      64KB

    • memory/1256-10-0x00000000009B0000-0x0000000000A46000-memory.dmp

      Filesize

      600KB

    • memory/1256-5-0x0000000005070000-0x0000000005080000-memory.dmp

      Filesize

      64KB

    • memory/1256-12-0x0000000000CF0000-0x0000000000D56000-memory.dmp

      Filesize

      408KB

    • memory/1256-0-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/1256-53-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/1256-3-0x0000000004D20000-0x0000000004DB2000-memory.dmp

      Filesize

      584KB

    • memory/1256-2-0x00000000053B0000-0x0000000005954000-memory.dmp

      Filesize

      5.6MB

    • memory/1256-1-0x0000000000240000-0x0000000000340000-memory.dmp

      Filesize

      1024KB

    • memory/2284-21-0x0000000006040000-0x0000000006062000-memory.dmp

      Filesize

      136KB

    • memory/2284-109-0x0000000007E10000-0x0000000007E24000-memory.dmp

      Filesize

      80KB

    • memory/2284-22-0x00000000061E0000-0x0000000006246000-memory.dmp

      Filesize

      408KB

    • memory/2284-34-0x0000000006330000-0x0000000006684000-memory.dmp

      Filesize

      3.3MB

    • memory/2284-17-0x00000000059E0000-0x0000000006008000-memory.dmp

      Filesize

      6.2MB

    • memory/2284-14-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/2284-116-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/2284-15-0x00000000053A0000-0x00000000053B0000-memory.dmp

      Filesize

      64KB

    • memory/2284-112-0x0000000007EF0000-0x0000000007EF8000-memory.dmp

      Filesize

      32KB

    • memory/2284-69-0x0000000075640000-0x000000007568C000-memory.dmp

      Filesize

      304KB

    • memory/2284-108-0x0000000007E00000-0x0000000007E0E000-memory.dmp

      Filesize

      56KB

    • memory/2284-107-0x0000000007DD0000-0x0000000007DE1000-memory.dmp

      Filesize

      68KB

    • memory/2284-16-0x00000000053A0000-0x00000000053B0000-memory.dmp

      Filesize

      64KB

    • memory/2284-94-0x0000000007BD0000-0x0000000007BEA000-memory.dmp

      Filesize

      104KB

    • memory/2284-55-0x00000000068D0000-0x00000000068EE000-memory.dmp

      Filesize

      120KB

    • memory/2284-56-0x0000000006E90000-0x0000000006EDC000-memory.dmp

      Filesize

      304KB

    • memory/2284-13-0x00000000052E0000-0x0000000005316000-memory.dmp

      Filesize

      216KB

    • memory/2284-91-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/2284-67-0x00000000053A0000-0x00000000053B0000-memory.dmp

      Filesize

      64KB

    • memory/2284-80-0x0000000007A90000-0x0000000007AAE000-memory.dmp

      Filesize

      120KB

    • memory/4744-93-0x00000000074D0000-0x0000000007B4A000-memory.dmp

      Filesize

      6.5MB

    • memory/4744-70-0x0000000075640000-0x000000007568C000-memory.dmp

      Filesize

      304KB

    • memory/4744-68-0x0000000006130000-0x0000000006162000-memory.dmp

      Filesize

      200KB

    • memory/4744-90-0x0000000006B70000-0x0000000006C13000-memory.dmp

      Filesize

      652KB

    • memory/4744-66-0x0000000004810000-0x0000000004820000-memory.dmp

      Filesize

      64KB

    • memory/4744-35-0x0000000004810000-0x0000000004820000-memory.dmp

      Filesize

      64KB

    • memory/4744-36-0x0000000004810000-0x0000000004820000-memory.dmp

      Filesize

      64KB

    • memory/4744-115-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/4744-33-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/4744-105-0x0000000006F00000-0x0000000006F0A000-memory.dmp

      Filesize

      40KB

    • memory/4744-106-0x0000000007110000-0x00000000071A6000-memory.dmp

      Filesize

      600KB

    • memory/4744-111-0x00000000071B0000-0x00000000071B8000-memory.dmp

      Filesize

      32KB

    • memory/4744-110-0x00000000071D0000-0x00000000071EA000-memory.dmp

      Filesize

      104KB

    • memory/4836-49-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/4836-50-0x0000000005370000-0x0000000005380000-memory.dmp

      Filesize

      64KB

    • memory/4836-47-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/4836-121-0x00000000056C0000-0x00000000056D8000-memory.dmp

      Filesize

      96KB

    • memory/4836-122-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/4836-123-0x0000000005370000-0x0000000005380000-memory.dmp

      Filesize

      64KB

    • memory/4916-52-0x00000000049A0000-0x00000000049B0000-memory.dmp

      Filesize

      64KB

    • memory/4916-95-0x0000000075640000-0x000000007568C000-memory.dmp

      Filesize

      304KB

    • memory/4916-51-0x00000000049A0000-0x00000000049B0000-memory.dmp

      Filesize

      64KB

    • memory/4916-54-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/4916-120-0x0000000074D90000-0x0000000075540000-memory.dmp

      Filesize

      7.7MB

    • memory/4916-92-0x00000000049A0000-0x00000000049B0000-memory.dmp

      Filesize

      64KB