Analysis

  • max time kernel
    66s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    13-04-2023 06:55

General

  • Target

    FedEx_Invoice.exe

  • Size

    474KB

  • MD5

    4bc9873d8029befe50ec4a8f1b23dadf

  • SHA1

    09e58555f77a71b58a04f3687801937faa5f9f0d

  • SHA256

    d7008c06acb178629eef3b665c729b7b13eb8c3c3713369cf71dd754572d731d

  • SHA512

    d914d8e34d23bb54821d74e3dbea9fd0585c459941f7455c196f6ceefb8147d9a334f9cfe1fc9d26ad9734041bfe96210b34448ff823e17b39debf043e9e73fe

  • SSDEEP

    12288:bOG9Oqj828mzm5OfoYsRB7cB60pIyFp7Xd:SG9O28Om5OAYacEQjL

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 5 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 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). Likely ransomware behaviour.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FedEx_Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\FedEx_Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1596
    • 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\FedEx_Invoice.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:776
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hEguZFj.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1920
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hEguZFj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC0F0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:992
    • C:\Users\Admin\AppData\Local\Temp\FedEx_Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\FedEx_Invoice.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC0F0.tmp

    Filesize

    1KB

    MD5

    3b64d04ea89d2755477d0cc864d0d3c1

    SHA1

    557b5821cb51c90c80126ac5f06d8ddac9e72de3

    SHA256

    64a3adde150360a09339a661d6c17d33c27315feddaa9d7b7613c492bd09e064

    SHA512

    abc2c95d5ef8a96a913d63e0e97c9234089c92c0015b2902673d28f835cc36378190330b1c0cc23526fe41ea3f281eeb1c576f922924eced10ad55a6f3d14f56

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\TLMIU0PB8CFE95YV2SWN.temp

    Filesize

    7KB

    MD5

    98f6fac5f33f29fd651343fc81a18f28

    SHA1

    4cf6519de2ffb1d7ba1dfbba3a8ca1842c6aa445

    SHA256

    9121481bb9df7e85b1d3d33f4f36a38f50683e1fa70f00b04d1b02ffa03a71ce

    SHA512

    326981793098397a61c537740fb378684d5173284d6fab6987e94b6ac446a19b02e129918c40a49c6170afb3ddc4fe6395c24813e4448c1112f3e418c47c0d38

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    98f6fac5f33f29fd651343fc81a18f28

    SHA1

    4cf6519de2ffb1d7ba1dfbba3a8ca1842c6aa445

    SHA256

    9121481bb9df7e85b1d3d33f4f36a38f50683e1fa70f00b04d1b02ffa03a71ce

    SHA512

    326981793098397a61c537740fb378684d5173284d6fab6987e94b6ac446a19b02e129918c40a49c6170afb3ddc4fe6395c24813e4448c1112f3e418c47c0d38

  • memory/1596-54-0x0000000000100000-0x000000000017C000-memory.dmp

    Filesize

    496KB

  • memory/1596-55-0x0000000004660000-0x00000000046A0000-memory.dmp

    Filesize

    256KB

  • memory/1596-56-0x00000000005F0000-0x00000000005FC000-memory.dmp

    Filesize

    48KB

  • memory/1596-57-0x0000000004660000-0x00000000046A0000-memory.dmp

    Filesize

    256KB

  • memory/1596-58-0x0000000000710000-0x000000000071C000-memory.dmp

    Filesize

    48KB

  • memory/1596-59-0x0000000004B30000-0x0000000004B92000-memory.dmp

    Filesize

    392KB

  • memory/1596-72-0x0000000004720000-0x0000000004748000-memory.dmp

    Filesize

    160KB

  • memory/2016-73-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-74-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-75-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-76-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2016-78-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-80-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-82-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2016-83-0x00000000043A0000-0x00000000043E0000-memory.dmp

    Filesize

    256KB

  • memory/2016-84-0x00000000043A0000-0x00000000043E0000-memory.dmp

    Filesize

    256KB