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Analysis

  • max time kernel
    140s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2023, 03:42

General

  • Target

    101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe

  • Size

    1.5MB

  • MD5

    507c5920642e0ecb41d60a8cd835d2a5

  • SHA1

    c27aac57d049be8a67b88caaf2c61c615c22c012

  • SHA256

    101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96

  • SHA512

    f4858b436d58ab41ff87a0d7ab10cfff00ee4823af289ee44db51e230ec9788cedf9afa1f88124d5eea9ccb146a9c322e27a34c6a474900660b71a39c21c2e2c

  • SSDEEP

    49152:fElteIWkfBjbQkX3nzraEXuWUe5iLTIVY7acvAM:cAkfpQkHnzr7XuVe5iHsY7bY

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 44 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe
    "C:\Users\Admin\AppData\Local\Temp\101c8b2ee5d93de3eb0f2cd388733ef7e42cb5d18039bfde623450c6ef689c96.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2560
    • C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dll
      C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dll Bugreport %E9%AA%8C%E8%AF%81%E6%B6%88%20
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dll

    Filesize

    13KB

    MD5

    86edd35c3148f725d3faad744c205dde

    SHA1

    45e2fc087d879a65dc9c1b8c44d9fe46445d6463

    SHA256

    0fec20d19d47059a52f3c31f94f6472565654ef6b7363c9d23ff7878cf497e65

    SHA512

    2c57a7790e698602094e53d925db2a44f9602eaac74dcfc43acd9af6788ce93df44b3708f5d09032a77a87770987fa819263b74fb7e5a07f387a646260182775

  • C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dll

    Filesize

    11KB

    MD5

    84286da1e31189a9e0b21c2ede9243da

    SHA1

    8d91a86d316c139d4c3994157d5e4a31aa755e40

    SHA256

    2d23e5297f028e8bc52608a28496454b8c7a5f7f00b507a6964d31f0306d7a27

    SHA512

    32edecf2c58b9f1fbe10b2f9832d062bc6fb735aedef029a9ea0dd5516674f72b0706b706883e550e8614cbc752420e71c3b79c4ed377a12440e01889caf600f

  • \Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dll

    Filesize

    6KB

    MD5

    029cf0e6f1d53a48316476a5c6c41413

    SHA1

    f21722f51287e5e0d2fbe6a065bc8d605347106b

    SHA256

    1bd81ca593367cea1e26a48ed89b58d20e7a3445c0d7213c433b152f45fc0460

    SHA512

    090e9819fea6980111b7525842bc5e0d40e2a9807dadac8ba63cf87c752083ed813dda25cc123470bceb998150bea6965f1cc11d21e84a0277f4a920f16b7832

  • \Users\Admin\AppData\Local\Temp\data\Bugreport-262568.dll

    Filesize

    35KB

    MD5

    4d62a5ebd72769e6c49eedcaae7472d3

    SHA1

    6e557aeff1c42694eda5444e8ed90846550e603c

    SHA256

    1d651d2f4ab45deea02eb588e85161a100df7d40d73c3de418b3fd6f92f1e6bb

    SHA512

    4fb75bbe0ef0ec78ca64f55473a6f0dde0df18fbf08679ac15b40fc55c4c4da57db5ea5f65ddfe72ef03191373dbd0101cc6d67a7a7079711653335e43f988b9

  • \Users\Admin\AppData\Local\Temp\iext1.fnr.bbs.125.la

    Filesize

    408KB

    MD5

    26c6c8df577f841cd168eddbf582700a

    SHA1

    7634ffb25589ab0928601c557ab7ba2f66184f9e

    SHA256

    95732627b27456bb41ce9c13d0911cfcb63d531a475fd40cef82271e490e49f7

    SHA512

    43dfebbee7edb45aded6957d8cadbe6c14f616dff45007f22e0a745870c42dfe5e2c2ba5273f41fab18cf914baa9e689616f3b9cc60c1c45c9898ad464f3617a

  • memory/1984-77-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/1984-95-0x0000000000400000-0x0000000000439000-memory.dmp

    Filesize

    228KB

  • memory/2560-54-0x0000000002A10000-0x0000000002A82000-memory.dmp

    Filesize

    456KB

  • memory/2560-59-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-27-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-40-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-50-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-52-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-0-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-51-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-48-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-46-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-44-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-42-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-25-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-23-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-21-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-19-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-17-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-8-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-7-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-6-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-5-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-57-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-58-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-37-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-68-0x0000000002A10000-0x0000000002A82000-memory.dmp

    Filesize

    456KB

  • memory/2560-62-0x0000000002290000-0x0000000002291000-memory.dmp

    Filesize

    4KB

  • memory/2560-61-0x00000000022A0000-0x00000000022A1000-memory.dmp

    Filesize

    4KB

  • memory/2560-29-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-31-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-35-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-78-0x0000000005600000-0x0000000005639000-memory.dmp

    Filesize

    228KB

  • memory/2560-33-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-15-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-75-0x0000000005600000-0x0000000005639000-memory.dmp

    Filesize

    228KB

  • memory/2560-10-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-12-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2560-101-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-106-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-115-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-124-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-137-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-141-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-142-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-143-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-144-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-145-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-146-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB

  • memory/2560-147-0x0000000000400000-0x000000000082B000-memory.dmp

    Filesize

    4.2MB