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Analysis

  • max time kernel
    102s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2023, 20:44

General

  • Target

    Inquiry65621.exe

  • Size

    535KB

  • MD5

    24f71f1a4b23df2ec4a3b397c787f46b

  • SHA1

    e6bd139200d4514c9769cbd91bceace8b120d5c7

  • SHA256

    69e2e592529984388953e4cc8f782b96ff622fd05c29e455864408f8f6d1d275

  • SHA512

    4bd5f694bd180fb243ca985c9dd470095dd0bec004e6eb43ca9780600eebeab42736e03fe46e6f4029f09e985e5e04d35bec0c5d62b333ccfb7821e392c3b561

  • SSDEEP

    12288:oSnRKqnAok2N2THEWkbIyYvJ3F7Kwm5BVqy1V:rnPnhWHyYvJ3F7Kwi6o

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.thanhphuong.com.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    87IRKR4d

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 7 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 6 IoCs
  • 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).

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BRwSVjIH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDC0E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1036
    • C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDC0E.tmp

    Filesize

    1KB

    MD5

    d51dbe3177bc12c81bc8eb311f285506

    SHA1

    936f91710ad21b6bfc8f9c265330205d748f1bba

    SHA256

    d1474e64f439d2d9eec35d965fbc1bce610d3ab6dac1d319020985a378b4cfd1

    SHA512

    9c784acf7111dd8cd48c52ab5cd4762f49c86d521e30194779cdb56436ad7568887032c3dfda401396c10edfecf95e1ebeed9d07d81e7fdfcc5e52aeb591edf9

  • memory/524-67-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/524-70-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/524-76-0x0000000004AA0000-0x0000000004AE0000-memory.dmp

    Filesize

    256KB

  • memory/524-75-0x0000000004AA0000-0x0000000004AE0000-memory.dmp

    Filesize

    256KB

  • memory/524-74-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/524-72-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/524-65-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/524-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/524-66-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/524-68-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1724-56-0x00000000005D0000-0x00000000005DC000-memory.dmp

    Filesize

    48KB

  • memory/1724-54-0x0000000000360000-0x00000000003EC000-memory.dmp

    Filesize

    560KB

  • memory/1724-55-0x0000000004EC0000-0x0000000004F00000-memory.dmp

    Filesize

    256KB

  • memory/1724-61-0x0000000000A90000-0x0000000000AB6000-memory.dmp

    Filesize

    152KB

  • memory/1724-60-0x0000000005CD0000-0x0000000005D46000-memory.dmp

    Filesize

    472KB

  • memory/1724-59-0x000000007EF40000-0x000000007EF50000-memory.dmp

    Filesize

    64KB

  • memory/1724-58-0x0000000004EC0000-0x0000000004F00000-memory.dmp

    Filesize

    256KB

  • memory/1724-57-0x000000007EF40000-0x000000007EF50000-memory.dmp

    Filesize

    64KB