Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2023 17:34

General

  • Target

    Blast E&I Supplies & Services, LLC Statement of Account PDF.exe

  • Size

    476KB

  • MD5

    80c8442c33ad9f34b8c1fea06d0e3b97

  • SHA1

    29120925c1e77739043c967c28d8b527ceca89de

  • SHA256

    32e78542acc7b2bf144e1643c857b42f26275f78ac8411dea741159467d47573

  • SHA512

    d362d2a1a57d30a8d7f8610256e448c187c56808da6411d7cd73d2925a16dadf75293ffae4abadec1da5ca8f0d180b4f0956809feb8cde6b7287f215a78550d8

  • SSDEEP

    12288:xeLlxymPaHjAIFF3/IW9bQ8XjwbICmhNKk/f:xe/ymPTIFqWTx/hNKkf

Malware Config

Signatures

  • AgentTesla

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • 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.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Blast E&I Supplies & Services, LLC Statement of Account PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Blast E&I Supplies & Services, LLC Statement of Account PDF.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Users\Admin\AppData\Local\Temp\ceigouxy.exe
      "C:\Users\Admin\AppData\Local\Temp\ceigouxy.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1560
      • C:\Users\Admin\AppData\Local\Temp\ceigouxy.exe
        "C:\Users\Admin\AppData\Local\Temp\ceigouxy.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    287KB

    MD5

    82e1425ae5e9c114a07a30ac26cc0ed7

    SHA1

    e12b591d529346ea748b235f207d405682c3a8b0

    SHA256

    418badf9bf9751c14139c966d1447ff28d82938bc52dbbb299cbccb299717862

    SHA512

    5ce89b30a07d5927d885621743c7526bc9af1bd10a964b273a9091e79e30dbbc36fb719048dc6e6005fc3d4e6ea60a74dbae4610518bb212fd29020c51be833a

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

    Filesize

    287KB

    MD5

    82e1425ae5e9c114a07a30ac26cc0ed7

    SHA1

    e12b591d529346ea748b235f207d405682c3a8b0

    SHA256

    418badf9bf9751c14139c966d1447ff28d82938bc52dbbb299cbccb299717862

    SHA512

    5ce89b30a07d5927d885621743c7526bc9af1bd10a964b273a9091e79e30dbbc36fb719048dc6e6005fc3d4e6ea60a74dbae4610518bb212fd29020c51be833a

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

    Filesize

    287KB

    MD5

    82e1425ae5e9c114a07a30ac26cc0ed7

    SHA1

    e12b591d529346ea748b235f207d405682c3a8b0

    SHA256

    418badf9bf9751c14139c966d1447ff28d82938bc52dbbb299cbccb299717862

    SHA512

    5ce89b30a07d5927d885621743c7526bc9af1bd10a964b273a9091e79e30dbbc36fb719048dc6e6005fc3d4e6ea60a74dbae4610518bb212fd29020c51be833a

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

    Filesize

    287KB

    MD5

    82e1425ae5e9c114a07a30ac26cc0ed7

    SHA1

    e12b591d529346ea748b235f207d405682c3a8b0

    SHA256

    418badf9bf9751c14139c966d1447ff28d82938bc52dbbb299cbccb299717862

    SHA512

    5ce89b30a07d5927d885621743c7526bc9af1bd10a964b273a9091e79e30dbbc36fb719048dc6e6005fc3d4e6ea60a74dbae4610518bb212fd29020c51be833a

  • C:\Users\Admin\AppData\Local\Temp\fojcsbczrnt.ypz

    Filesize

    334KB

    MD5

    91ff50eb9fcdce2f5012d7600e74812a

    SHA1

    5d382db6089dcf0770ad140bc45ef4ca249a1f5d

    SHA256

    922450b2e7adcca958aaff7677f1ff821ed6b99ce707a37c34c6e3b682614385

    SHA512

    c7b8e018268dc24d7e7e4ee9ab9d90f478c1c2f660e18b97d2577cb4fbc8d7b593b63ba6977e96f50bb2fad65bb24abceac83e83804d26f74eed1ae4de00caaa

  • \Users\Admin\AppData\Local\Temp\ceigouxy.exe

    Filesize

    287KB

    MD5

    82e1425ae5e9c114a07a30ac26cc0ed7

    SHA1

    e12b591d529346ea748b235f207d405682c3a8b0

    SHA256

    418badf9bf9751c14139c966d1447ff28d82938bc52dbbb299cbccb299717862

    SHA512

    5ce89b30a07d5927d885621743c7526bc9af1bd10a964b273a9091e79e30dbbc36fb719048dc6e6005fc3d4e6ea60a74dbae4610518bb212fd29020c51be833a

  • \Users\Admin\AppData\Local\Temp\ceigouxy.exe

    Filesize

    287KB

    MD5

    82e1425ae5e9c114a07a30ac26cc0ed7

    SHA1

    e12b591d529346ea748b235f207d405682c3a8b0

    SHA256

    418badf9bf9751c14139c966d1447ff28d82938bc52dbbb299cbccb299717862

    SHA512

    5ce89b30a07d5927d885621743c7526bc9af1bd10a964b273a9091e79e30dbbc36fb719048dc6e6005fc3d4e6ea60a74dbae4610518bb212fd29020c51be833a

  • \Users\Admin\AppData\Local\Temp\ceigouxy.exe

    Filesize

    287KB

    MD5

    82e1425ae5e9c114a07a30ac26cc0ed7

    SHA1

    e12b591d529346ea748b235f207d405682c3a8b0

    SHA256

    418badf9bf9751c14139c966d1447ff28d82938bc52dbbb299cbccb299717862

    SHA512

    5ce89b30a07d5927d885621743c7526bc9af1bd10a964b273a9091e79e30dbbc36fb719048dc6e6005fc3d4e6ea60a74dbae4610518bb212fd29020c51be833a

  • memory/1560-10-0x0000000000600000-0x0000000000700000-memory.dmp

    Filesize

    1024KB

  • memory/2700-14-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2700-17-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2700-18-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2700-19-0x0000000074A90000-0x000000007517E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-20-0x0000000000460000-0x00000000004A2000-memory.dmp

    Filesize

    264KB

  • memory/2700-21-0x0000000000CD0000-0x0000000000D10000-memory.dmp

    Filesize

    256KB

  • memory/2700-22-0x0000000000CD0000-0x0000000000D10000-memory.dmp

    Filesize

    256KB

  • memory/2700-23-0x0000000000CD0000-0x0000000000D10000-memory.dmp

    Filesize

    256KB

  • memory/2700-24-0x0000000074A90000-0x000000007517E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-25-0x0000000000CD0000-0x0000000000D10000-memory.dmp

    Filesize

    256KB