Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2023 09:31

General

  • Target

    148790c33dad176e7430e5a22dbc2b96.exe

  • Size

    83KB

  • MD5

    148790c33dad176e7430e5a22dbc2b96

  • SHA1

    54d3cf0a10873f4b2116ba079bdabc9ddeaa1276

  • SHA256

    e2ce136b057db82b5967bc923c861b0a40d6935fe5d7b74cd3cb1db94a0072d7

  • SHA512

    5b9e1cd9b9bfc4565c093987b4b1908317649ff8987432817f6fb9377817f0ac4fa441345f57ebb265f9ca17c13b8b90193bf81c6b0033dc475b562c3c322ff3

  • SSDEEP

    1536:xpgpHzb9dZVX9fHMvG0D3XJkQJwCOwVpLFBrnsV/9CswxQ93:rgXdZt9P6D3XJVrpm/9p93

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\148790c33dad176e7430e5a22dbc2b96.exe
    "C:\Users\Admin\AppData\Local\Temp\148790c33dad176e7430e5a22dbc2b96.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2480
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nso29A1.tmp\ioSpecial.ini

    Filesize

    421B

    MD5

    c76fe44ff93acbcc0533529176396834

    SHA1

    4db9d688febe6ed137faee2d0b59f15b3907ada9

    SHA256

    acbff423404e0d45efb788217d2916d84ad68b44f76436eecfd781dbde8c633a

    SHA512

    446b94ff4b4b55a8c1e483ff99ca44aacefa6d0faaa6f79f9d2490eb6105a750625ded8a6ce40f05c7a442e0d2153c6d9158af96dc83dc2a029ed619b92f1e22

  • C:\Users\Admin\AppData\Local\Temp\nso29A1.tmp\ioSpecial.ini

    Filesize

    656B

    MD5

    9ffb2e4bdbec256c5e5fefd343fad7c1

    SHA1

    7352e55155ce416346a8c3b6976a498cd7fa3e5a

    SHA256

    f957b8a682598073015054dbc343931d5c3d834f789b7e7f4bfe6b0d9dfab39b

    SHA512

    fa9a9623ec42b2cb03dc891446741654050c06ddf4141d80655fe5ccc606e76427a4373769d6a151004194dda83fb5c20b29ccd627f9bbd04d1e99731150ddd7

  • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

    Filesize

    64KB

    MD5

    e13b1c131b5270aae3c827b4ab545526

    SHA1

    662db5cb9953ec5afff8a4cbc1b877d212dadd99

    SHA256

    5055b33052a773b7f75a4b4a791bf7b747cafbd61267ef429704e28b1cb30ff4

    SHA512

    f2f2e59cffaa3238323a1e200a066eba7cb22cc2840fa97db02e5824d30207f3d70ad2038068e34effc69288f0f5bf5d49ef12600743fa192b365c55c2af9bb1

  • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

    Filesize

    83KB

    MD5

    148790c33dad176e7430e5a22dbc2b96

    SHA1

    54d3cf0a10873f4b2116ba079bdabc9ddeaa1276

    SHA256

    e2ce136b057db82b5967bc923c861b0a40d6935fe5d7b74cd3cb1db94a0072d7

    SHA512

    5b9e1cd9b9bfc4565c093987b4b1908317649ff8987432817f6fb9377817f0ac4fa441345f57ebb265f9ca17c13b8b90193bf81c6b0033dc475b562c3c322ff3

  • \Users\Admin\AppData\Local\Temp\nso29A1.tmp\InstallOptions.dll

    Filesize

    14KB

    MD5

    325b008aec81e5aaa57096f05d4212b5

    SHA1

    27a2d89747a20305b6518438eff5b9f57f7df5c3

    SHA256

    c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

    SHA512

    18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf