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
    24-09-2024 19:43

General

  • Target

    POInvoiceXJ210821Q.PDF.scr.exe

  • Size

    674KB

  • MD5

    b93e5d5b8d6e25ea9107769128334130

  • SHA1

    eaa57f101eec3faaa8ca9a767a07e4cdef35999e

  • SHA256

    4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283

  • SHA512

    52dfb3178800cf6905ba2e5d4c351a176b3feb531329d5bd7ba3135843dbeacad3814a82eaf3ecdf0e5e47261d7cd3d4043b616a10a2b79c194566fbb33a0657

  • SSDEEP

    12288:AO98bQbs8+iS6RGUfSjWFa9Rh1iEIhjz3DO8ITXykKsSWScPx3ZokkR:ArIJ+7dUfSjWA9Rh14Jy8qZuWbx3Zg

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.libreriagandhi.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    x6p2^m#1#~+O

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.libreriagandhi.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    x6p2^m#1#~+O

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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.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:4844
    • 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\POInvoiceXJ210821Q.PDF.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4612
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zDowlSskSU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4804
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zDowlSskSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp635.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1216
    • C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.scr.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\POInvoiceXJ210821Q.PDF.scr.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • 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

    47e4d525484eddc51ea53292f01432b2

    SHA1

    520fbe69218b7b3ed1c29d7aeb90efdf8aebf429

    SHA256

    156003363d6f585ba96fd78f26ccd2f46d5fc7c2b510b78101761ef07c062a5d

    SHA512

    5267e0d096cd36b0c99db5d4246e7a1a06631888b5345b412f239746ca8b9d97cb6cef07b5cc9b88af29bdd7f0a32b308d10feca86e5a1cfa2e256e6d0488557

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bi1trrtc.yea.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp635.tmp

    Filesize

    1KB

    MD5

    d89443f8ffb033cc5a00157c8a7ed909

    SHA1

    a5cb68e84c6ecaac540148283ed6cd41dd07c038

    SHA256

    1d5e80ce23c9b6df184e8879f31c95c306acf9579e270e8fca8fbd81b6e8cf55

    SHA512

    c38165033907862e03c9796b3ffbca788bbe07a513a600ee53e3c2e17f1c82091d7312021a106bfba3d3ee0e1dc419eb7b2355b541ee8d0dc61522a6c76d1b50

  • memory/2840-84-0x00000000067E0000-0x0000000006830000-memory.dmp

    Filesize

    320KB

  • memory/2840-31-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4612-16-0x0000000004E40000-0x0000000005468000-memory.dmp

    Filesize

    6.2MB

  • memory/4612-53-0x00000000715A0000-0x00000000715EC000-memory.dmp

    Filesize

    304KB

  • memory/4612-64-0x0000000006E30000-0x0000000006ED3000-memory.dmp

    Filesize

    652KB

  • memory/4612-63-0x00000000061D0000-0x00000000061EE000-memory.dmp

    Filesize

    120KB

  • memory/4612-15-0x00000000022F0000-0x0000000002326000-memory.dmp

    Filesize

    216KB

  • memory/4612-48-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4612-17-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4612-78-0x00000000071D0000-0x0000000007266000-memory.dmp

    Filesize

    600KB

  • memory/4612-18-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4612-77-0x0000000006FC0000-0x0000000006FCA000-memory.dmp

    Filesize

    40KB

  • memory/4612-52-0x0000000006DF0000-0x0000000006E22000-memory.dmp

    Filesize

    200KB

  • memory/4612-24-0x0000000005620000-0x0000000005974000-memory.dmp

    Filesize

    3.3MB

  • memory/4612-51-0x0000000005C40000-0x0000000005C8C000-memory.dmp

    Filesize

    304KB

  • memory/4612-79-0x0000000007150000-0x0000000007161000-memory.dmp

    Filesize

    68KB

  • memory/4612-80-0x0000000007180000-0x000000000718E000-memory.dmp

    Filesize

    56KB

  • memory/4612-50-0x0000000005C20000-0x0000000005C3E000-memory.dmp

    Filesize

    120KB

  • memory/4612-91-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-75-0x00000000077B0000-0x0000000007E2A000-memory.dmp

    Filesize

    6.5MB

  • memory/4804-83-0x0000000007490000-0x0000000007498000-memory.dmp

    Filesize

    32KB

  • memory/4804-21-0x0000000004FE0000-0x0000000005046000-memory.dmp

    Filesize

    408KB

  • memory/4804-20-0x0000000004E80000-0x0000000004EA2000-memory.dmp

    Filesize

    136KB

  • memory/4804-47-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-25-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-23-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-22-0x0000000005090000-0x00000000050F6000-memory.dmp

    Filesize

    408KB

  • memory/4804-88-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4804-82-0x00000000074B0000-0x00000000074CA000-memory.dmp

    Filesize

    104KB

  • memory/4804-65-0x00000000715A0000-0x00000000715EC000-memory.dmp

    Filesize

    304KB

  • memory/4804-76-0x0000000007170000-0x000000000718A000-memory.dmp

    Filesize

    104KB

  • memory/4804-81-0x00000000073B0000-0x00000000073C4000-memory.dmp

    Filesize

    80KB

  • memory/4844-8-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4844-7-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

    Filesize

    4KB

  • memory/4844-6-0x0000000007AE0000-0x0000000007AF2000-memory.dmp

    Filesize

    72KB

  • memory/4844-5-0x0000000005B30000-0x0000000005B3A000-memory.dmp

    Filesize

    40KB

  • memory/4844-0-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

    Filesize

    4KB

  • memory/4844-9-0x0000000007E20000-0x0000000007EA4000-memory.dmp

    Filesize

    528KB

  • memory/4844-49-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4844-4-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4844-3-0x0000000005A90000-0x0000000005B22000-memory.dmp

    Filesize

    584KB

  • memory/4844-10-0x000000000A510000-0x000000000A5AC000-memory.dmp

    Filesize

    624KB

  • memory/4844-2-0x0000000006190000-0x0000000006734000-memory.dmp

    Filesize

    5.6MB

  • memory/4844-1-0x0000000000FD0000-0x000000000107C000-memory.dmp

    Filesize

    688KB