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Analysis

  • max time kernel
    93s
  • max time network
    105s
  • 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, 17:25

General

  • Target

    5678909764.scr.exe

  • Size

    723KB

  • MD5

    df30947662e982996810396f8998687c

  • SHA1

    ab1cca67c1d71f95e516a21995d2965761bc6829

  • SHA256

    9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e

  • SHA512

    41e148f5bd8fe19754f6c676323a1b022c0e79d3be5c5de8b3fc030e2dedb46877e5ff792da2965fc8cfc701724ea914a61a80d43590e77421820d22bb484b9a

  • SSDEEP

    12288:ZFw5wFD3n6UwXUTCBvvFfg6DUT0/PSnyUt9H+nruF39h9sAFJEyvQXDkR:ZF4K9wXKIvFfZRGyI9enr6H93bnQXW

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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5678909764.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\5678909764.scr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3088
    • 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\5678909764.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4904
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OsYPcQX.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4312
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OsYPcQX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3275.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4896
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4880

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

    51d017a561fe9f68f776ea5243fe4463

    SHA1

    6b37ddba668fa170b23e03008bc54d586f32f618

    SHA256

    c183e447bb8f842f3e27a3ad546cde54523a992ac91129b0b867acc8bd6c1782

    SHA512

    e5b8c2cf6b647337acf0ad210b4d2a5d2f696e45bc7748909931434d82977ca0b29f5437be50af7f4c6e1964c40e3d00f1128a1e8af037ef68b0cc792b91bda2

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_saw1uh1e.3g4.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp3275.tmp

    Filesize

    1KB

    MD5

    2ffddb25c3b38533ab41fbca83213bc9

    SHA1

    c6ebc9d6db6a6e3a2d746ba0f5f514d41cd33b57

    SHA256

    8aaa073b8a91d9a825b7fb1a799e01bdc55601bd87faa41395c0d4f7aeeb8211

    SHA512

    8d4cbe080c8f4d9d246be9a0ac6e59f7c14f207890eba696edf8b0217d3bd700193aff4ecab092dc21b6f6d0a4e513cf1493feb0df8bb2c7a5f42dc79898770f

  • memory/3088-7-0x000000007516E000-0x000000007516F000-memory.dmp

    Filesize

    4KB

  • memory/3088-2-0x0000000005AC0000-0x0000000006064000-memory.dmp

    Filesize

    5.6MB

  • memory/3088-6-0x0000000005A70000-0x0000000005A8E000-memory.dmp

    Filesize

    120KB

  • memory/3088-48-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/3088-8-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/3088-9-0x0000000002D50000-0x0000000002DD4000-memory.dmp

    Filesize

    528KB

  • memory/3088-10-0x000000000B7A0000-0x000000000B83C000-memory.dmp

    Filesize

    624KB

  • memory/3088-1-0x0000000000A20000-0x0000000000AD8000-memory.dmp

    Filesize

    736KB

  • memory/3088-0-0x000000007516E000-0x000000007516F000-memory.dmp

    Filesize

    4KB

  • memory/3088-4-0x00000000054D0000-0x00000000054DA000-memory.dmp

    Filesize

    40KB

  • memory/3088-3-0x0000000005510000-0x00000000055A2000-memory.dmp

    Filesize

    584KB

  • memory/3088-5-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4312-82-0x0000000007B00000-0x0000000007B1A000-memory.dmp

    Filesize

    104KB

  • memory/4312-47-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4312-51-0x0000000006A90000-0x0000000006AC2000-memory.dmp

    Filesize

    200KB

  • memory/4312-79-0x00000000079F0000-0x00000000079FE000-memory.dmp

    Filesize

    56KB

  • memory/4312-90-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4312-74-0x0000000007E00000-0x000000000847A000-memory.dmp

    Filesize

    6.5MB

  • memory/4312-62-0x0000000006A00000-0x0000000006A1E000-memory.dmp

    Filesize

    120KB

  • memory/4312-83-0x0000000007AE0000-0x0000000007AE8000-memory.dmp

    Filesize

    32KB

  • memory/4312-45-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4312-29-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4312-52-0x0000000071830000-0x000000007187C000-memory.dmp

    Filesize

    304KB

  • memory/4312-63-0x00000000074B0000-0x0000000007553000-memory.dmp

    Filesize

    652KB

  • memory/4880-36-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4880-81-0x00000000069B0000-0x0000000006A00000-memory.dmp

    Filesize

    320KB

  • memory/4904-16-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4904-50-0x0000000005C90000-0x0000000005CDC000-memory.dmp

    Filesize

    304KB

  • memory/4904-49-0x0000000005AA0000-0x0000000005ABE000-memory.dmp

    Filesize

    120KB

  • memory/4904-64-0x0000000071830000-0x000000007187C000-memory.dmp

    Filesize

    304KB

  • memory/4904-30-0x0000000005490000-0x00000000057E4000-memory.dmp

    Filesize

    3.3MB

  • memory/4904-75-0x0000000006DC0000-0x0000000006DDA000-memory.dmp

    Filesize

    104KB

  • memory/4904-76-0x0000000006E30000-0x0000000006E3A000-memory.dmp

    Filesize

    40KB

  • memory/4904-77-0x0000000007040000-0x00000000070D6000-memory.dmp

    Filesize

    600KB

  • memory/4904-78-0x0000000006FC0000-0x0000000006FD1000-memory.dmp

    Filesize

    68KB

  • memory/4904-21-0x0000000004C00000-0x0000000004C22000-memory.dmp

    Filesize

    136KB

  • memory/4904-80-0x0000000007000000-0x0000000007014000-memory.dmp

    Filesize

    80KB

  • memory/4904-22-0x0000000004CA0000-0x0000000004D06000-memory.dmp

    Filesize

    408KB

  • memory/4904-23-0x0000000004D10000-0x0000000004D76000-memory.dmp

    Filesize

    408KB

  • memory/4904-19-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4904-18-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB

  • memory/4904-17-0x0000000004E60000-0x0000000005488000-memory.dmp

    Filesize

    6.2MB

  • memory/4904-15-0x0000000002180000-0x00000000021B6000-memory.dmp

    Filesize

    216KB

  • memory/4904-91-0x0000000075160000-0x0000000075910000-memory.dmp

    Filesize

    7.7MB