Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-04-2024 01:54

General

  • Target

    dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3.exe

  • Size

    627KB

  • MD5

    486dca36f70bda709ce425682fc94bd7

  • SHA1

    a0ac277f7bed2142308983e1662d7190e4a209fb

  • SHA256

    dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3

  • SHA512

    3d1429d5c918bc2ecf6ad30d9efa1831e4325ad353ff6dc39c921d44bbae17dcc3b197af7ece01a968eef24edbedd24b4d67b4e023eb2691015cc835cac63d4a

  • SSDEEP

    12288:KUc5JfzT37rK0XpOB6Z2ZZ8cJmdpBIQfBsW5SefjfvSscbFBI7:uPK0XI8ZU7JkBIQoefjqsKI

Malware Config

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3.exe
    "C:\Users\Admin\AppData\Local\Temp\dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4624
    • 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\dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3944
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vQYFhmd.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4436
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vQYFhmd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6EC7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3756
    • C:\Users\Admin\AppData\Local\Temp\dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3.exe
      "C:\Users\Admin\AppData\Local\Temp\dba96ee600123552dadc5382141329632bbf0c819888b3bc2e53f339667dbcc3.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2244

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

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

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

Email Collection

1
T1114

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

    f6ba0b974f612f5a05ae0056ff7275a4

    SHA1

    214861839642b3353e8f38532c780b95167e42be

    SHA256

    cf65fc343b94b82d0695ee1001e9b908a94aaff010f72a42f14f6eb3c6926907

    SHA512

    383d6848d16172d965dbdb0fc16742003b76f330df4cf967f0c167b12f855d73f552794c8edabba16bb3bcbbe55bb9757f709ef011548592d4082218f7e1d838

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_itliczj1.nzc.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp6EC7.tmp
    Filesize

    1KB

    MD5

    442084b8d118e4f436b09b24d3b10437

    SHA1

    84b13949d75c7246ad0f558aa95c207c98cb7bde

    SHA256

    f5ff1e2429960435c5d60c998afb92933bc94fe037ce502ec19c41ee03730587

    SHA512

    54b1e99385f9eda19dd4ef29846f99f4005705c5df4c5bb57b4e7c4f61686f38d234ba86a2aa021365bdf6900a27bccb3e135b8423333f6d03d74da3d2af630f

  • memory/2244-100-0x0000000005240000-0x0000000005250000-memory.dmp
    Filesize

    64KB

  • memory/2244-99-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/2244-98-0x0000000006C50000-0x0000000006E12000-memory.dmp
    Filesize

    1.8MB

  • memory/2244-97-0x0000000006A30000-0x0000000006A80000-memory.dmp
    Filesize

    320KB

  • memory/2244-51-0x0000000005240000-0x0000000005250000-memory.dmp
    Filesize

    64KB

  • memory/2244-48-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/2244-47-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/3944-19-0x0000000002FF0000-0x0000000003000000-memory.dmp
    Filesize

    64KB

  • memory/3944-52-0x0000000006880000-0x000000000689E000-memory.dmp
    Filesize

    120KB

  • memory/3944-18-0x0000000002FF0000-0x0000000003000000-memory.dmp
    Filesize

    64KB

  • memory/3944-96-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/3944-17-0x00000000059B0000-0x0000000005FD8000-memory.dmp
    Filesize

    6.2MB

  • memory/3944-88-0x0000000007EB0000-0x0000000007EB8000-memory.dmp
    Filesize

    32KB

  • memory/3944-16-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/3944-83-0x0000000007E10000-0x0000000007EA6000-memory.dmp
    Filesize

    600KB

  • memory/3944-81-0x0000000007B90000-0x0000000007BAA000-memory.dmp
    Filesize

    104KB

  • memory/3944-56-0x00000000716B0000-0x00000000716FC000-memory.dmp
    Filesize

    304KB

  • memory/3944-25-0x0000000006190000-0x00000000061F6000-memory.dmp
    Filesize

    408KB

  • memory/3944-15-0x0000000002F90000-0x0000000002FC6000-memory.dmp
    Filesize

    216KB

  • memory/3944-68-0x0000000006E00000-0x0000000006E1E000-memory.dmp
    Filesize

    120KB

  • memory/3944-28-0x0000000006270000-0x00000000065C4000-memory.dmp
    Filesize

    3.3MB

  • memory/3944-58-0x000000007EFD0000-0x000000007EFE0000-memory.dmp
    Filesize

    64KB

  • memory/4436-85-0x00000000073C0000-0x00000000073CE000-memory.dmp
    Filesize

    56KB

  • memory/4436-23-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/4436-95-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/4436-21-0x0000000004A70000-0x0000000004A80000-memory.dmp
    Filesize

    64KB

  • memory/4436-87-0x00000000074D0000-0x00000000074EA000-memory.dmp
    Filesize

    104KB

  • memory/4436-53-0x0000000005F00000-0x0000000005F4C000-memory.dmp
    Filesize

    304KB

  • memory/4436-86-0x00000000073D0000-0x00000000073E4000-memory.dmp
    Filesize

    80KB

  • memory/4436-55-0x000000007F4C0000-0x000000007F4D0000-memory.dmp
    Filesize

    64KB

  • memory/4436-54-0x0000000006420000-0x0000000006452000-memory.dmp
    Filesize

    200KB

  • memory/4436-57-0x00000000716B0000-0x00000000716FC000-memory.dmp
    Filesize

    304KB

  • memory/4436-77-0x0000000004A70000-0x0000000004A80000-memory.dmp
    Filesize

    64KB

  • memory/4436-20-0x0000000004A70000-0x0000000004A80000-memory.dmp
    Filesize

    64KB

  • memory/4436-26-0x0000000005010000-0x0000000005076000-memory.dmp
    Filesize

    408KB

  • memory/4436-79-0x0000000007070000-0x0000000007113000-memory.dmp
    Filesize

    652KB

  • memory/4436-80-0x00000000077D0000-0x0000000007E4A000-memory.dmp
    Filesize

    6.5MB

  • memory/4436-84-0x0000000007390000-0x00000000073A1000-memory.dmp
    Filesize

    68KB

  • memory/4436-82-0x0000000007200000-0x000000000720A000-memory.dmp
    Filesize

    40KB

  • memory/4436-22-0x0000000004D80000-0x0000000004DA2000-memory.dmp
    Filesize

    136KB

  • memory/4624-5-0x00000000053C0000-0x00000000053CA000-memory.dmp
    Filesize

    40KB

  • memory/4624-10-0x0000000006A50000-0x0000000006AEC000-memory.dmp
    Filesize

    624KB

  • memory/4624-9-0x00000000067A0000-0x0000000006812000-memory.dmp
    Filesize

    456KB

  • memory/4624-27-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/4624-7-0x0000000005660000-0x0000000005668000-memory.dmp
    Filesize

    32KB

  • memory/4624-6-0x0000000005620000-0x0000000005632000-memory.dmp
    Filesize

    72KB

  • memory/4624-8-0x0000000005680000-0x000000000568C000-memory.dmp
    Filesize

    48KB

  • memory/4624-50-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/4624-1-0x0000000074FE0000-0x0000000075790000-memory.dmp
    Filesize

    7.7MB

  • memory/4624-4-0x00000000056A0000-0x00000000056B0000-memory.dmp
    Filesize

    64KB

  • memory/4624-3-0x0000000005440000-0x00000000054D2000-memory.dmp
    Filesize

    584KB

  • memory/4624-2-0x0000000005950000-0x0000000005EF4000-memory.dmp
    Filesize

    5.6MB

  • memory/4624-0-0x0000000000910000-0x00000000009B4000-memory.dmp
    Filesize

    656KB