Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2024, 18:31

General

  • Target

    7359e394e230fd29d9f82d0f8f901f516b5a679961206a3d414ac3253c26585a.exe

  • Size

    41KB

  • MD5

    c21d6a6383ea365f7910b60e96f5dabb

  • SHA1

    2cd65d5aaafeacf09c1b0082ab6b6616c02cf399

  • SHA256

    7359e394e230fd29d9f82d0f8f901f516b5a679961206a3d414ac3253c26585a

  • SHA512

    48c57e172f6951a81cafefdab4e993f8ea20dd7fb891bfc2e111b0f08caedd9978207a164b89a9d79933fd8cf1b20c0734537e8b920c9ed035bc328d2d9af9e8

  • SSDEEP

    768:5eMc5VwWt1jDkbXdnTOyQxHFO+IxX2P5LIbbcPYir2lAqcdF0i09syT:5q5VwWDjDkdTRqHFOn8tIbbeYiuZIFS1

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 19 IoCs

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

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7359e394e230fd29d9f82d0f8f901f516b5a679961206a3d414ac3253c26585a.exe
    "C:\Users\Admin\AppData\Local\Temp\7359e394e230fd29d9f82d0f8f901f516b5a679961206a3d414ac3253c26585a.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:1396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    9ff95a63f0a3d35a01448b423df71c4f

    SHA1

    1534c4f29232f237090c837754ac386d5e6813cf

    SHA256

    7e714c2fd16f9ed6fdcbab97ca33f3c2eba52ecaeb8f2b28357de759b79f4222

    SHA512

    eccf10d1e69b1b68d146856f7280053799e2e741af03f1ea45379a3ede5d7b21e18be39fa8fe47a7285f689af8b816bed740d25d83a2e909e0ae5d22ef032774

  • C:\Windows\SysWOW64\smnss.exe

    Filesize

    41KB

    MD5

    3463492c17b53681df3974416e61dace

    SHA1

    72e3da5a48079838396b7c76fb16414b46052730

    SHA256

    1628d06509ef91842a6507c10c2c3df92257c819adc3295ee25eb15d8fc4c469

    SHA512

    d7f7067757563ff271cc1bc4582870d7f8d6ec2ee82bf2999cb9a7b4645e18f3335b37e30df0cbd3e984929ae6fbd9d8144ccdcb126a1b1b965b4b68b8fa68e2

  • \Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    b20259b7f9767de4cef3918661ae35cc

    SHA1

    3ebe32f58e8bc30211766007afc9b129ec3539f1

    SHA256

    327a96366195b972866c3b49eefca1fd827dda9555108bdd44480bb7c0be3eb7

    SHA512

    09cc3f60124a495e944d6ceeb049e0c7303903607bc5c2f5e665502242a352a15c5a7e284fa80da681199082df9b28121a914a46f4653e5ec7544bdcb2cb61b7

  • \Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    5daa69dbe699e17543ef078f551a3cad

    SHA1

    cd214a471ab16115d40225e5d8e436779ba5a0e7

    SHA256

    f8154cf8cdb929e455103464bb0d111f802ce778e0cb78adc009c72f32e6724e

    SHA512

    7b21e35f545f3ee2f0127068363bf497ea4d31ec7f7911f55a11752854a9b906ccaebd0b253e72ed07555cf4f17a5e2a55b8208aada6e25e216eac18e42c9f5a

  • memory/1396-41-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-53-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-34-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-67-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-65-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-63-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-61-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-59-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-40-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/1396-42-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/1396-57-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-43-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-45-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-47-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-49-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-51-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1396-55-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2252-25-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2252-0-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2252-12-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2252-26-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2252-18-0x00000000002B0000-0x00000000002B9000-memory.dmp

    Filesize

    36KB

  • memory/2908-30-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2908-31-0x0000000000320000-0x000000000033F000-memory.dmp

    Filesize

    124KB