Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    10-08-2023 15:17

General

  • Target

    062b22dd37329423720a6c6af5bf50a756418baa930c5681e5cd7ebc9ceea88d.exe

  • Size

    3.5MB

  • MD5

    b426dc73d818eec7e5b334285b37b8bf

  • SHA1

    f860399b5b724719deb548b173b6155ea847367e

  • SHA256

    062b22dd37329423720a6c6af5bf50a756418baa930c5681e5cd7ebc9ceea88d

  • SHA512

    ec8174fdecc1522e386ccfda010db98c626de3d15877a93e602a121510bd1a9b97bf8825d816ebe21358f7d339e1d2efe2a40cf772a149e171a5c71e091ad5f3

  • SSDEEP

    49152:4YN7fndIGzMV/JOrWCOhKOUKMA9qT/kwonn/hAyGWv4uAd6e7uG:DbndwV8WCTljzkw6G0Z05

Score
10/10

Malware Config

Signatures

  • r77

    r77 is an open-source, userland rootkit.

  • r77 rootkit payload 2 IoCs

    Detects the payload of the r77 rootkit.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 24 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\062b22dd37329423720a6c6af5bf50a756418baa930c5681e5cd7ebc9ceea88d.exe
    "C:\Users\Admin\AppData\Local\Temp\062b22dd37329423720a6c6af5bf50a756418baa930c5681e5cd7ebc9ceea88d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Users\Admin\AppData\Local\Temp\a.exe
      C:\Users\Admin\AppData\Local\Temp\\a.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    33735152611d17441b96093cc0d2ba3b

    SHA1

    8a1ad97e4f0e258f9fef68bc1bd197c273832ba7

    SHA256

    55186be2ce986e633141df72e4705db0fdc3787b27f5eff00fa18817632ba4ee

    SHA512

    b7c81934319fd549a82f8c8da19db65fba96f7ae42de2f479fc39ec3b90f584160012141896493d80e4bfbe6d8b1dd7fa247a060e34a214bee20e9a6c5a192ea

  • C:\Users\Admin\AppData\Local\Temp\CabA24A.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\TarA52A.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • C:\Users\Admin\AppData\Local\Temp\a.exe

    Filesize

    1.6MB

    MD5

    eb3295617d26a4902d2c51fc8ca4c9b7

    SHA1

    c1cc56cac046678b5373ff473da1560b35cd4ca6

    SHA256

    f5e0c4f0ef809417d2fcde05fcc037308a323383226169c56912ae401e996bab

    SHA512

    f3fc1575075da3c875cb80e4d414a161d2c84be00febb7dacdfeab0f783117fd09984a95f5cf5863ccfa60069492a5e0313d183e01febb54b8b630ed3274eb66

  • \Users\Admin\AppData\Local\Temp\a.exe

    Filesize

    1.6MB

    MD5

    eb3295617d26a4902d2c51fc8ca4c9b7

    SHA1

    c1cc56cac046678b5373ff473da1560b35cd4ca6

    SHA256

    f5e0c4f0ef809417d2fcde05fcc037308a323383226169c56912ae401e996bab

    SHA512

    f3fc1575075da3c875cb80e4d414a161d2c84be00febb7dacdfeab0f783117fd09984a95f5cf5863ccfa60069492a5e0313d183e01febb54b8b630ed3274eb66

  • memory/2488-89-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-91-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-67-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-71-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-69-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-73-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-75-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-77-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-79-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-83-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-81-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-87-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-85-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-55-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-93-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-65-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-95-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-97-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-61-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-63-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-57-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-59-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-56-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2488-110-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2900-106-0x000000001AF50000-0x000000001AFD0000-memory.dmp

    Filesize

    512KB

  • memory/2900-105-0x000000001AF50000-0x000000001AFD0000-memory.dmp

    Filesize

    512KB

  • memory/2900-104-0x000000001AF50000-0x000000001AFD0000-memory.dmp

    Filesize

    512KB

  • memory/2900-103-0x000007FEF50E0000-0x000007FEF5ACC000-memory.dmp

    Filesize

    9.9MB

  • memory/2900-102-0x0000000000150000-0x0000000000182000-memory.dmp

    Filesize

    200KB

  • memory/2900-188-0x000007FEF50E0000-0x000007FEF5ACC000-memory.dmp

    Filesize

    9.9MB

  • memory/2900-189-0x000000001AF50000-0x000000001AFD0000-memory.dmp

    Filesize

    512KB