Analysis

  • max time kernel
    131s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 14:10

General

  • Target

    39fe44328453edb4688201f0d3c6c0d07baa65d92ee1c5e0ad496bc71d1b0c9b.exe

  • Size

    670KB

  • MD5

    41373fb609440bc4177a1db81e594b69

  • SHA1

    d67b37e144112e75cea9aa32f3c29775c8cfe045

  • SHA256

    39fe44328453edb4688201f0d3c6c0d07baa65d92ee1c5e0ad496bc71d1b0c9b

  • SHA512

    bc7305c0375cb972ad151c4320704fef47c6f266d692ba44ce278e12e07b06030a0aa42593d5e68f2ce9ecb112543417eab883c9e0787b7cb17a415b4899313b

  • SSDEEP

    12288:CCguti8LkpEatDtW4uBiCv4CFXuOkq9b6O9P7Q0NRUONkR:Fj4jEiWliCwwu8oYP7Q0NRUn

Malware Config

Extracted

Family

agenttesla

Credentials

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39fe44328453edb4688201f0d3c6c0d07baa65d92ee1c5e0ad496bc71d1b0c9b.exe
    "C:\Users\Admin\AppData\Local\Temp\39fe44328453edb4688201f0d3c6c0d07baa65d92ee1c5e0ad496bc71d1b0c9b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4372
    • 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\39fe44328453edb4688201f0d3c6c0d07baa65d92ee1c5e0ad496bc71d1b0c9b.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4752
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\waNwgSaPPjkOka.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4520
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\waNwgSaPPjkOka" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F20.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4436
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4804

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

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

    1aa24cef86d5f32636ce38a0932ace61

    SHA1

    51cb7a501ab6988c8b53f621ff1284ce02566d75

    SHA256

    ed1b948775a3b57ac886569930c1c505653c5bd8dbf54f4dffead297d204e16c

    SHA512

    f5df1a28b5d858edf7f7612c15d2841169b31f42b05e86f1214c9820a977cb116e25b746015e569d87557b080eb34e8f72c6bf1e7c6a2c1deb952b6e9e0755d7

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zlnfpg32.0xy.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8F20.tmp
    Filesize

    1KB

    MD5

    95d4595233bf2899f382f7578c8ec6d4

    SHA1

    f0c043e887cdddf5f86589d1e134d608a6b08fcd

    SHA256

    5f6c58844b457b8f0b4c928008bbb65b21cf677709607e87a6ffa68d57bfe806

    SHA512

    02c0afd207c6c29d84ae79f9a2306567bde5d4c9a1ec02a0fa8c1d86e200eb03a6933e81e9d7496a3d2c16b825b1680564dc0564c31f49bb1323256fe8f001b0

  • memory/4372-5-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4372-4-0x0000000005240000-0x000000000524A000-memory.dmp
    Filesize

    40KB

  • memory/4372-6-0x00000000067D0000-0x00000000067EA000-memory.dmp
    Filesize

    104KB

  • memory/4372-7-0x0000000006340000-0x0000000006350000-memory.dmp
    Filesize

    64KB

  • memory/4372-8-0x00000000067F0000-0x0000000006874000-memory.dmp
    Filesize

    528KB

  • memory/4372-9-0x0000000008E30000-0x0000000008ECC000-memory.dmp
    Filesize

    624KB

  • memory/4372-3-0x0000000005180000-0x0000000005212000-memory.dmp
    Filesize

    584KB

  • memory/4372-15-0x00000000750BE000-0x00000000750BF000-memory.dmp
    Filesize

    4KB

  • memory/4372-2-0x0000000005690000-0x0000000005C34000-memory.dmp
    Filesize

    5.6MB

  • memory/4372-0-0x00000000750BE000-0x00000000750BF000-memory.dmp
    Filesize

    4KB

  • memory/4372-49-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4372-1-0x00000000006F0000-0x000000000079A000-memory.dmp
    Filesize

    680KB

  • memory/4372-36-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4520-68-0x0000000007060000-0x000000000706A000-memory.dmp
    Filesize

    40KB

  • memory/4520-81-0x00000000071F0000-0x0000000007201000-memory.dmp
    Filesize

    68KB

  • memory/4520-91-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4520-24-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4520-84-0x0000000007330000-0x000000000734A000-memory.dmp
    Filesize

    104KB

  • memory/4520-79-0x0000000007270000-0x0000000007306000-memory.dmp
    Filesize

    600KB

  • memory/4520-67-0x0000000006FF0000-0x000000000700A000-memory.dmp
    Filesize

    104KB

  • memory/4520-37-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4520-66-0x0000000007630000-0x0000000007CAA000-memory.dmp
    Filesize

    6.5MB

  • memory/4520-48-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4520-65-0x0000000006CB0000-0x0000000006D53000-memory.dmp
    Filesize

    652KB

  • memory/4520-50-0x0000000005BC0000-0x0000000005BDE000-memory.dmp
    Filesize

    120KB

  • memory/4520-64-0x00000000062D0000-0x00000000062EE000-memory.dmp
    Filesize

    120KB

  • memory/4520-54-0x0000000075950000-0x000000007599C000-memory.dmp
    Filesize

    304KB

  • memory/4520-53-0x0000000006290000-0x00000000062C2000-memory.dmp
    Filesize

    200KB

  • memory/4752-85-0x0000000007720000-0x0000000007728000-memory.dmp
    Filesize

    32KB

  • memory/4752-17-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4752-20-0x0000000005120000-0x0000000005142000-memory.dmp
    Filesize

    136KB

  • memory/4752-23-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4752-82-0x0000000007630000-0x000000000763E000-memory.dmp
    Filesize

    56KB

  • memory/4752-69-0x0000000075950000-0x000000007599C000-memory.dmp
    Filesize

    304KB

  • memory/4752-92-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4752-83-0x0000000007640000-0x0000000007654000-memory.dmp
    Filesize

    80KB

  • memory/4752-35-0x0000000005B00000-0x0000000005E54000-memory.dmp
    Filesize

    3.3MB

  • memory/4752-18-0x00000000750B0000-0x0000000075860000-memory.dmp
    Filesize

    7.7MB

  • memory/4752-21-0x0000000005920000-0x0000000005986000-memory.dmp
    Filesize

    408KB

  • memory/4752-22-0x0000000005A90000-0x0000000005AF6000-memory.dmp
    Filesize

    408KB

  • memory/4752-51-0x0000000006180000-0x00000000061CC000-memory.dmp
    Filesize

    304KB

  • memory/4752-16-0x00000000052F0000-0x0000000005918000-memory.dmp
    Filesize

    6.2MB

  • memory/4752-14-0x00000000027B0000-0x00000000027E6000-memory.dmp
    Filesize

    216KB

  • memory/4804-34-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/4804-80-0x00000000064D0000-0x0000000006520000-memory.dmp
    Filesize

    320KB