Analysis

  • max time kernel
    152s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 19:06

General

  • Target

    d98f926f3a2ea1308e2d80705591f91b_JC.exe

  • Size

    472KB

  • MD5

    d98f926f3a2ea1308e2d80705591f91b

  • SHA1

    badd7d2f741c15d58139a1ebc3ac0f5152f195b1

  • SHA256

    17e75f28d1566e91fc1e91a7782da24b1cf215fb7d5c2dfd746d7d4808049318

  • SHA512

    eac1f64906642702597a2952ab5817ff632d8aa1ebfb7a0dd759e6cff4309764621fd41abb03f703fe28bf564266c5e7d426df053fc8c4a75fc1ee9961a88338

  • SSDEEP

    6144:Wf+Jjjou35J6i5plrzuo6/LkeYvjoIHnv0RX/VwFdLD/7MsrYMC+9GXL9M8sG3dR:hj8u3ui5pl+uBvc/V0FdYxJdRqMt

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 10 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 59 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d98f926f3a2ea1308e2d80705591f91b_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\d98f926f3a2ea1308e2d80705591f91b_JC.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Windows\LSASS.exe
      "C:\Windows\LSASS.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Enumerates connected drives
      • Drops autorun.inf file
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:2536
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:2560
      • C:\Users\Admin\LSASS.exe
        "C:\Users\Admin\LSASS.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:884
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:2748
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:2772
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:1492
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:1900
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:2900
      • C:\Windows\SysWOW64\REG.exe
        REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Windows\LSASS.exe" /f
        3⤵
        • Adds Run key to start application
        PID:2320
    • C:\Windows\SysWOW64\REG.exe
      REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\d98f926f3a2ea1308e2d80705591f91b_JC.exe" /f
      2⤵
      • Adds Run key to start application
      PID:2708
    • C:\Windows\SysWOW64\REG.exe
      REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v SysUtils /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\d98f926f3a2ea1308e2d80705591f91b_JC.exe" /f
      2⤵
      • Adds Run key to start application
      PID:2688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\LSASS.exe

    Filesize

    472KB

    MD5

    6e94fc3df7e1d93481cd0ed1b2c937f3

    SHA1

    3400d7106954fe59ee4aedbf893e1b51760e4da6

    SHA256

    d0951f70acad72dce56632f89427f38cbfd562c6e079c899e425578d9cb02b23

    SHA512

    37b4d2a4c485e09c031f9c3f9a8d6d000afb66ac49087755d5a4abd688c2d4f50b07b099f1ab5c6eacfacdb1d60bf41ea8ec03822c7e675c7bcb658a9b26666f

  • C:\Windows\LSASS.exe

    Filesize

    472KB

    MD5

    57ff21ad32f0700cdfb876244061675d

    SHA1

    706ab68a1c68c13e2cbe450295fc77b59ca3f1c7

    SHA256

    8f01201099772475a3a77245dc5391a6b1abb6c1766a01da1de2247375808808

    SHA512

    5b6bb47c50e24d669735e39cbd51757e4d7fe5e4e3bb4b3793507e14180386470611452cc3ee0a4e5a78d100ae8181862571fc6873b98e6bc6c8564181c6553e

  • C:\Windows\LSASS.exe

    Filesize

    472KB

    MD5

    57ff21ad32f0700cdfb876244061675d

    SHA1

    706ab68a1c68c13e2cbe450295fc77b59ca3f1c7

    SHA256

    8f01201099772475a3a77245dc5391a6b1abb6c1766a01da1de2247375808808

    SHA512

    5b6bb47c50e24d669735e39cbd51757e4d7fe5e4e3bb4b3793507e14180386470611452cc3ee0a4e5a78d100ae8181862571fc6873b98e6bc6c8564181c6553e

  • C:\Windows\LSASS.exe

    Filesize

    472KB

    MD5

    57ff21ad32f0700cdfb876244061675d

    SHA1

    706ab68a1c68c13e2cbe450295fc77b59ca3f1c7

    SHA256

    8f01201099772475a3a77245dc5391a6b1abb6c1766a01da1de2247375808808

    SHA512

    5b6bb47c50e24d669735e39cbd51757e4d7fe5e4e3bb4b3793507e14180386470611452cc3ee0a4e5a78d100ae8181862571fc6873b98e6bc6c8564181c6553e

  • C:\autorun.inf

    Filesize

    190B

    MD5

    b1445c7f646c6ca9a7597791af38d575

    SHA1

    91efaf63fa1f7a51ee2f9b1c3b0f8932f15439ce

    SHA256

    220517d50470c86d94020cebcd03af286898e65338f468dc5f860dc04af2c88e

    SHA512

    533349278b6d186f0f3947681e90dcc7f617e146736798e6fc23e79d61610f1f7b2e4b4241b296884622fbd6b1cf73dc694a852e05bf4235da8ed40b70c5683f

  • \Users\Admin\LSASS.exe

    Filesize

    472KB

    MD5

    6e94fc3df7e1d93481cd0ed1b2c937f3

    SHA1

    3400d7106954fe59ee4aedbf893e1b51760e4da6

    SHA256

    d0951f70acad72dce56632f89427f38cbfd562c6e079c899e425578d9cb02b23

    SHA512

    37b4d2a4c485e09c031f9c3f9a8d6d000afb66ac49087755d5a4abd688c2d4f50b07b099f1ab5c6eacfacdb1d60bf41ea8ec03822c7e675c7bcb658a9b26666f

  • \Users\Admin\LSASS.exe

    Filesize

    472KB

    MD5

    6e94fc3df7e1d93481cd0ed1b2c937f3

    SHA1

    3400d7106954fe59ee4aedbf893e1b51760e4da6

    SHA256

    d0951f70acad72dce56632f89427f38cbfd562c6e079c899e425578d9cb02b23

    SHA512

    37b4d2a4c485e09c031f9c3f9a8d6d000afb66ac49087755d5a4abd688c2d4f50b07b099f1ab5c6eacfacdb1d60bf41ea8ec03822c7e675c7bcb658a9b26666f

  • memory/884-29-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/884-28-0x0000000000120000-0x0000000000121000-memory.dmp

    Filesize

    4KB

  • memory/2528-66-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-83-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-18-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-186-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-13-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/2528-152-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-30-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-135-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-49-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-118-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2528-19-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/2528-97-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2860-0-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/2860-3-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2860-4-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/2860-14-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB