Analysis

  • max time kernel
    93s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 07:26

General

  • Target

    SecuriteInfo.com.Win32.PWSX-gen.23268.16982.exe

  • Size

    740KB

  • MD5

    172ee9c18f5ccdc214e7beebcf9d8778

  • SHA1

    66ac5a38d22c834aa3672961d46ff111bf67e72c

  • SHA256

    63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079

  • SHA512

    54a83a65eeeca1821b89d809ea730d640fd9511e2b29f58009eb3d8138968c28f58fbd02e08552c4ca7a0828326a8b9649c2fe146aefd0e7a318d855fde11e18

  • SSDEEP

    12288:bSG0YOwqyjo4Gzzsj+YuFVQMJ2FE0KBxHPhzbwxwJlCMo1FPpXPtH:OWO7yn+Yucbex9wqJlz

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hoangtruongphat.com
  • Port:
    587
  • Username:
    cus.overseas@hoangtruongphat.com
  • Password:
    hoangtruongphat818

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hoangtruongphat.com
  • Port:
    587
  • Username:
    cus.overseas@hoangtruongphat.com
  • Password:
    hoangtruongphat818
  • Email To:
    cus.overseas@hoangtruongphat.com

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 3 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.16982.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.16982.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3068
    • 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\SecuriteInfo.com.Win32.PWSX-gen.23268.16982.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3420
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\deZVtbExkPfJNa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2996
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\deZVtbExkPfJNa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5DDF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4052
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.16982.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.16982.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5052

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

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

    bdedadd838251092523dccd93a5df5ef

    SHA1

    ce023e224ec801162e9547b50ca07c038ff4956f

    SHA256

    d0648c298327526d9a253758ca1f9b8d07ad7a0038e0eb10426e99e5fdd3b54c

    SHA512

    5e4997e26a6b621d5b1c7d5e3046bdf47be9e49ed3fe8d0ee6e1a5d09f8d0e70487914e1491bbd8e89752d853939582867a7348dfc0226cbc677507e1b371b56

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xdiaidns.aii.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp5DDF.tmp
    Filesize

    1KB

    MD5

    4f283afe9bad3793f7412ce8ecc199d5

    SHA1

    2a0a670a7cb324ec6757d9adf682f528f62ca932

    SHA256

    c31c3c636d87592c55f9814aef4aa7b80579e29b66f22b95a05a804d3d416e0b

    SHA512

    4430935390f50b007ac31eec87ccb3b97e927d85098828c8e0e8df1cb83c7fab114e8c2fee7c079385b391ab99161615e3e7622d2cc84cb52abf3dc5296b33ed

  • memory/2996-83-0x00000000072E0000-0x00000000072F1000-memory.dmp
    Filesize

    68KB

  • memory/2996-80-0x00000000070E0000-0x00000000070FA000-memory.dmp
    Filesize

    104KB

  • memory/2996-54-0x0000000070D50000-0x0000000070D9C000-memory.dmp
    Filesize

    304KB

  • memory/2996-67-0x0000000000F10000-0x0000000000F20000-memory.dmp
    Filesize

    64KB

  • memory/2996-66-0x0000000006D20000-0x0000000006D3E000-memory.dmp
    Filesize

    120KB

  • memory/2996-78-0x0000000006F90000-0x0000000007033000-memory.dmp
    Filesize

    652KB

  • memory/2996-94-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/2996-84-0x0000000007310000-0x000000000731E000-memory.dmp
    Filesize

    56KB

  • memory/2996-82-0x0000000007360000-0x00000000073F6000-memory.dmp
    Filesize

    600KB

  • memory/2996-86-0x0000000007420000-0x000000000743A000-memory.dmp
    Filesize

    104KB

  • memory/2996-20-0x0000000000F10000-0x0000000000F20000-memory.dmp
    Filesize

    64KB

  • memory/2996-19-0x0000000000F10000-0x0000000000F20000-memory.dmp
    Filesize

    64KB

  • memory/2996-85-0x0000000007320000-0x0000000007334000-memory.dmp
    Filesize

    80KB

  • memory/2996-55-0x000000007F110000-0x000000007F120000-memory.dmp
    Filesize

    64KB

  • memory/2996-21-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/3068-4-0x0000000007C90000-0x0000000007CA0000-memory.dmp
    Filesize

    64KB

  • memory/3068-0-0x0000000000BB0000-0x0000000000C6E000-memory.dmp
    Filesize

    760KB

  • memory/3068-2-0x0000000007FA0000-0x0000000008544000-memory.dmp
    Filesize

    5.6MB

  • memory/3068-3-0x0000000007AD0000-0x0000000007B62000-memory.dmp
    Filesize

    584KB

  • memory/3068-5-0x0000000007C70000-0x0000000007C7A000-memory.dmp
    Filesize

    40KB

  • memory/3068-9-0x0000000006840000-0x00000000068DC000-memory.dmp
    Filesize

    624KB

  • memory/3068-36-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/3068-8-0x0000000008F10000-0x0000000008F94000-memory.dmp
    Filesize

    528KB

  • memory/3068-1-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/3068-7-0x0000000002F30000-0x0000000002F3C000-memory.dmp
    Filesize

    48KB

  • memory/3068-6-0x0000000002F00000-0x0000000002F1A000-memory.dmp
    Filesize

    104KB

  • memory/3420-35-0x0000000005850000-0x0000000005BA4000-memory.dmp
    Filesize

    3.3MB

  • memory/3420-17-0x0000000004F00000-0x0000000005528000-memory.dmp
    Filesize

    6.2MB

  • memory/3420-52-0x000000007F490000-0x000000007F4A0000-memory.dmp
    Filesize

    64KB

  • memory/3420-56-0x0000000070D50000-0x0000000070D9C000-memory.dmp
    Filesize

    304KB

  • memory/3420-51-0x0000000005DB0000-0x0000000005DFC000-memory.dmp
    Filesize

    304KB

  • memory/3420-50-0x0000000005D20000-0x0000000005D3E000-memory.dmp
    Filesize

    120KB

  • memory/3420-14-0x0000000002420000-0x0000000002456000-memory.dmp
    Filesize

    216KB

  • memory/3420-15-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/3420-76-0x0000000002410000-0x0000000002420000-memory.dmp
    Filesize

    64KB

  • memory/3420-79-0x0000000007710000-0x0000000007D8A000-memory.dmp
    Filesize

    6.5MB

  • memory/3420-24-0x0000000004D60000-0x0000000004D82000-memory.dmp
    Filesize

    136KB

  • memory/3420-81-0x00000000070B0000-0x00000000070BA000-memory.dmp
    Filesize

    40KB

  • memory/3420-25-0x0000000004E80000-0x0000000004EE6000-memory.dmp
    Filesize

    408KB

  • memory/3420-34-0x00000000057E0000-0x0000000005846000-memory.dmp
    Filesize

    408KB

  • memory/3420-53-0x0000000006C90000-0x0000000006CC2000-memory.dmp
    Filesize

    200KB

  • memory/3420-18-0x0000000002410000-0x0000000002420000-memory.dmp
    Filesize

    64KB

  • memory/3420-16-0x0000000002410000-0x0000000002420000-memory.dmp
    Filesize

    64KB

  • memory/3420-87-0x0000000007360000-0x0000000007368000-memory.dmp
    Filesize

    32KB

  • memory/3420-90-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/5052-33-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/5052-23-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/5052-40-0x0000000005760000-0x0000000005770000-memory.dmp
    Filesize

    64KB

  • memory/5052-95-0x0000000006DF0000-0x0000000006E40000-memory.dmp
    Filesize

    320KB

  • memory/5052-96-0x0000000074680000-0x0000000074E30000-memory.dmp
    Filesize

    7.7MB

  • memory/5052-97-0x0000000005760000-0x0000000005770000-memory.dmp
    Filesize

    64KB