Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-09-2024 21:58

General

  • Target

    e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118.exe

  • Size

    3.7MB

  • MD5

    e11f1e6bd79d5e12885434dcfd703ae3

  • SHA1

    dffa2772b1f9edf18586d70fe83716a032634570

  • SHA256

    371f46d6159d5fcba2d1531a470938fcd195840aeaf1147ec894407a7387431d

  • SHA512

    05db661decea32032a418e185a9bece0cb1ee6e06e23e7b0cbcd54798c387b3e2ce800c31b5a947570fcd14d63478a2eb862e60060700a7c6f534c6135a2d0f5

  • SSDEEP

    49152:+UJ6ZNXox4SgJhBsfHJq/nCFT4Mv0Pt97NfY7+k5K1fyqv+ih69:+tR4xGnCtvwNSK1aqv+4M

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Godwin@1234

Signatures

  • AgentTesla

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

  • Modifies WinLogon for persistence 2 TTPs 4 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • UAC bypass 3 TTPs 12 IoCs
  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 5 IoCs
  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 8 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
  • Drops file in Windows directory 4 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • System policy modification 1 TTPs 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:264
    • C:\Users\Admin\AppData\Local\Temp\e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118.exe 
      C:\Users\Admin\AppData\Local\Temp\e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118.exe 
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4428
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bBNRIXym" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9E3F.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3696
      • C:\Users\Admin\AppData\Local\Temp\e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118.exe 
        "{path}"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:388
    • C:\Users\Admin\AppData\Local\Temp\icsys.ico.exe
      C:\Users\Admin\AppData\Local\Temp\icsys.ico.exe
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:516
      • \??\c:\windows\wininit.exe
        c:\windows\wininit.exe
        3⤵
        • Modifies WinLogon for persistence
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:1192
      • \??\c:\users\admin\appdata\local\svchost.exe
        c:\users\admin\appdata\local\svchost.exe
        3⤵
        • Modifies WinLogon for persistence
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • System policy modification
        PID:2336

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\e11f1e6bd79d5e12885434dcfd703ae3_JaffaCakes118.exe 

    Filesize

    603KB

    MD5

    022821920ac46b52a44cdf0196c1b469

    SHA1

    bf036ce07db9edd5128319c1635ce05a1a611f0e

    SHA256

    257f5dd7532b70252668c3572d4be15938e7d2addfc825af0d545e2be750db35

    SHA512

    c074c5e4bd861be1322fc381a6238389f6f633b9873f9bc5701d858d15aa592cec91df67f8dfa218f0a7c910529cbe726f48f2495407c912bc0b3dcc4cd295e6

  • C:\Users\Admin\AppData\Local\Temp\icsys.ico.exe

    Filesize

    3.1MB

    MD5

    e5f7631a65e188b5e4c712df3eedfb4f

    SHA1

    78182de0cdf4fd956358c96258fcf9c897109fa9

    SHA256

    d35558550ddc97df1b77c3d4d1327e7282115db4d83386894e756a74633096f0

    SHA512

    83523b3d75c0c292c2e48d7037346890c6451433c5c23dcd77df271b80a4b9fc07fcfd42c9c1047892b11c91b49c9366c7c1622a7604581bc728991f02911b9d

  • C:\Users\Admin\AppData\Local\Temp\tmp9E3F.tmp

    Filesize

    1KB

    MD5

    f0542e53ab6aa0d88c3fed33d4f6ce19

    SHA1

    7f0fe2077552541d44f09581ff09ab6321400cce

    SHA256

    050efc441cfa16c9f101c08abf1ceb2f2194cd8b4f7bdaaa4aec2fad2230bedc

    SHA512

    5b6cd2fd3d3594f802e5f425b74a3eeadec77dd65cddcfd875f0a56c658de65571258b061ce2f0200cc52f5739e6bb6173941bbe3955be5dd4ce4722c5d3795b

  • memory/264-0-0x00000000026B0000-0x00000000026B1000-memory.dmp

    Filesize

    4KB

  • memory/264-10-0x00000000026B0000-0x00000000026B1000-memory.dmp

    Filesize

    4KB

  • memory/264-58-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/264-13-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/388-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/516-19-0x00000000026C0000-0x00000000026C1000-memory.dmp

    Filesize

    4KB

  • memory/516-57-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/1192-69-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/1192-71-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/1192-77-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/1192-60-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/2336-61-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/2336-70-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/2336-72-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/2336-80-0x0000000000400000-0x00000000007B5000-memory.dmp

    Filesize

    3.7MB

  • memory/4428-9-0x0000000073C90000-0x0000000074241000-memory.dmp

    Filesize

    5.7MB

  • memory/4428-8-0x0000000073C90000-0x0000000074241000-memory.dmp

    Filesize

    5.7MB

  • memory/4428-68-0x0000000073C90000-0x0000000074241000-memory.dmp

    Filesize

    5.7MB

  • memory/4428-7-0x0000000073C92000-0x0000000073C93000-memory.dmp

    Filesize

    4KB

  • memory/4428-12-0x0000000073C90000-0x0000000074241000-memory.dmp

    Filesize

    5.7MB

  • memory/4428-11-0x0000000073C92000-0x0000000073C93000-memory.dmp

    Filesize

    4KB