Analysis

  • max time kernel
    115s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-04-2024 01:22

General

  • Target

    a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe

  • Size

    637KB

  • MD5

    ee96ba9c62c6ae099b8970512b43a31e

  • SHA1

    16e5f6cd0a08d0bb1a063bf254ec50de44629cef

  • SHA256

    a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b

  • SHA512

    37ae2052450948a0e0e062e8a96faad7e5aedaa97bf4d684ae6cb87e063a5535520e5856202dbe648b3afca6e1ef95aefd2dae8f927c3d123f49b5eb088817c9

  • SSDEEP

    12288:IlPloOJRYWq0xbSnwhbL036nXpQ2SusxTCmw9zP1Ha8STEiu8MVsvl:29oOJb/xunw1LHXW2xsxszSTEiF

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.w5host.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    2M3t5MH8Wwfp

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe
    "C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3268
    • 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\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:928
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kGrkguaZtpZlQ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5028
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kGrkguaZtpZlQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5CB6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1008
    • C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe
      "C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.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

    b30ac5b25979171191b2f0c1df17ea66

    SHA1

    75f39b807208f01f37c0092604ba0f8eb45e7abe

    SHA256

    8c520e301c86a1a493b5498795755823752175785dae9a45c4458252e9519c3d

    SHA512

    c8be1aa9333307545c545b34d9e62c2e630637995af9c3a0cc004f1a6fe0d012e7f93555143d3d4efbd3fc6bc6bc235975f9dbf2a05dbdeae07af74282826b7c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aof4z3nu.lun.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp5CB6.tmp

    Filesize

    1KB

    MD5

    1b9adf2d7ef3d4bb028b5d8dcec25da8

    SHA1

    7d71ca52b8a23a6f5ee94141821b338f72b3dd41

    SHA256

    299ae2919d28ebfd339de8b5d0e5f2aa61fc35420abd1d97510ac6507dddd5cd

    SHA512

    6a42f3de8b9c87b596ca9366701b3e2ee9980b39e37e6259e0b6e15e93da38bc8445761bb66eff36b0c7f313831c8622d6b625b9f76c97cd836d8df71df6a231

  • memory/928-83-0x00000000076E0000-0x00000000076EA000-memory.dmp

    Filesize

    40KB

  • memory/928-87-0x00000000078B0000-0x00000000078C4000-memory.dmp

    Filesize

    80KB

  • memory/928-69-0x000000007F0D0000-0x000000007F0E0000-memory.dmp

    Filesize

    64KB

  • memory/928-79-0x0000000002AE0000-0x0000000002AF0000-memory.dmp

    Filesize

    64KB

  • memory/928-35-0x0000000002AE0000-0x0000000002AF0000-memory.dmp

    Filesize

    64KB

  • memory/928-95-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/928-15-0x0000000002A60000-0x0000000002A96000-memory.dmp

    Filesize

    216KB

  • memory/928-16-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/928-17-0x0000000005550000-0x0000000005B78000-memory.dmp

    Filesize

    6.2MB

  • memory/928-18-0x0000000002AE0000-0x0000000002AF0000-memory.dmp

    Filesize

    64KB

  • memory/928-89-0x0000000007990000-0x0000000007998000-memory.dmp

    Filesize

    32KB

  • memory/928-68-0x00000000753D0000-0x000000007541C000-memory.dmp

    Filesize

    304KB

  • memory/928-84-0x00000000078F0000-0x0000000007986000-memory.dmp

    Filesize

    600KB

  • memory/928-82-0x0000000007670000-0x000000000768A000-memory.dmp

    Filesize

    104KB

  • memory/928-80-0x0000000002AE0000-0x0000000002AF0000-memory.dmp

    Filesize

    64KB

  • memory/1800-49-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/1800-51-0x00000000056F0000-0x0000000005700000-memory.dmp

    Filesize

    64KB

  • memory/1800-98-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/1800-99-0x00000000056F0000-0x0000000005700000-memory.dmp

    Filesize

    64KB

  • memory/1800-97-0x0000000006C90000-0x0000000006CE0000-memory.dmp

    Filesize

    320KB

  • memory/1800-46-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3268-0-0x00000000003D0000-0x0000000000474000-memory.dmp

    Filesize

    656KB

  • memory/3268-4-0x0000000004D20000-0x0000000004D30000-memory.dmp

    Filesize

    64KB

  • memory/3268-3-0x0000000004D80000-0x0000000004E12000-memory.dmp

    Filesize

    584KB

  • memory/3268-7-0x0000000005080000-0x0000000005088000-memory.dmp

    Filesize

    32KB

  • memory/3268-9-0x00000000061B0000-0x0000000006232000-memory.dmp

    Filesize

    520KB

  • memory/3268-8-0x0000000006140000-0x000000000614C000-memory.dmp

    Filesize

    48KB

  • memory/3268-1-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-10-0x0000000008880000-0x000000000891C000-memory.dmp

    Filesize

    624KB

  • memory/3268-2-0x0000000005290000-0x0000000005834000-memory.dmp

    Filesize

    5.6MB

  • memory/3268-5-0x0000000004D40000-0x0000000004D4A000-memory.dmp

    Filesize

    40KB

  • memory/3268-6-0x0000000004EB0000-0x0000000004EC4000-memory.dmp

    Filesize

    80KB

  • memory/3268-50-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/5028-34-0x0000000004AE0000-0x0000000004AF0000-memory.dmp

    Filesize

    64KB

  • memory/5028-55-0x000000007F0B0000-0x000000007F0C0000-memory.dmp

    Filesize

    64KB

  • memory/5028-33-0x0000000005930000-0x0000000005996000-memory.dmp

    Filesize

    408KB

  • memory/5028-22-0x00000000057C0000-0x0000000005826000-memory.dmp

    Filesize

    408KB

  • memory/5028-81-0x00000000077A0000-0x0000000007E1A000-memory.dmp

    Filesize

    6.5MB

  • memory/5028-20-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/5028-32-0x0000000004AE0000-0x0000000004AF0000-memory.dmp

    Filesize

    64KB

  • memory/5028-85-0x0000000007360000-0x0000000007371000-memory.dmp

    Filesize

    68KB

  • memory/5028-86-0x0000000007390000-0x000000000739E000-memory.dmp

    Filesize

    56KB

  • memory/5028-67-0x0000000007000000-0x00000000070A3000-memory.dmp

    Filesize

    652KB

  • memory/5028-88-0x00000000074A0000-0x00000000074BA000-memory.dmp

    Filesize

    104KB

  • memory/5028-19-0x0000000005070000-0x0000000005092000-memory.dmp

    Filesize

    136KB

  • memory/5028-66-0x00000000063E0000-0x00000000063FE000-memory.dmp

    Filesize

    120KB

  • memory/5028-96-0x0000000074B60000-0x0000000075310000-memory.dmp

    Filesize

    7.7MB

  • memory/5028-56-0x00000000753D0000-0x000000007541C000-memory.dmp

    Filesize

    304KB

  • memory/5028-54-0x0000000006DB0000-0x0000000006DE2000-memory.dmp

    Filesize

    200KB

  • memory/5028-52-0x0000000005E20000-0x0000000005E3E000-memory.dmp

    Filesize

    120KB

  • memory/5028-53-0x0000000005E60000-0x0000000005EAC000-memory.dmp

    Filesize

    304KB

  • memory/5028-36-0x00000000059A0000-0x0000000005CF4000-memory.dmp

    Filesize

    3.3MB