Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    23-10-2023 08:46

General

  • Target

    3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff.exe

  • Size

    2.5MB

  • MD5

    eaca518b1e134dcb313324dfe5be66fb

  • SHA1

    b4c66ccf5b67adb33ea9e6fa2c16e97f5d31f1df

  • SHA256

    3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff

  • SHA512

    697513968490a072ab468b44b0e7e84f7480703b6d31d16db3d75be90b004d116ae57e1367e1d8ce436d48f661c193551a23716da1513577395d218d03296797

  • SSDEEP

    49152:RSnEknyUzsrkl5daDwXt8aHc68V/V7L1T:GDn3z0kUDwXtfH+5V1T

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 25 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\3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff.exe
    "C:\Users\Admin\AppData\Local\Temp\3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1228
    • 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:2572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    4a836eaabc8e12fe97c9a2ef1a1e810e

    SHA1

    38c855d662976c5647965f4db19fdf2c69e6e838

    SHA256

    8ee3eac7365f3e5c6e2e666dd32e4a91b935dc8daa510a49b9a7ad4a492b29bf

    SHA512

    bd71f418a06f0fa2a1a1b416ee16642d680fde3b9972258b1b4324140709a00a63ec4391adeabf3420feff06215f914645007b226a94ffb17970d6b49e659ae4

  • C:\Users\Admin\AppData\Local\Temp\CabB138.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\TarB179.tmp

    Filesize

    163KB

    MD5

    9441737383d21192400eca82fda910ec

    SHA1

    725e0d606a4fc9ba44aa8ffde65bed15e65367e4

    SHA256

    bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

    SHA512

    7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

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

    Filesize

    1.3MB

    MD5

    d5e098531d6c0d3d59541f934b62dfba

    SHA1

    182489876f54e3f51fbcb468a04e18f5589f872c

    SHA256

    06b4d1399741e9af55f549e9940319e1ef6ddf42266662142c214d85fd1f72af

    SHA512

    b3c4a064c7603c0f737c805aee4b402634d8e1412a73c9a3acf5a2e9ad9d7e61ef06faa1e6ff3351caba6c2c7869dab6999f978ef6342019cc5a7a4da4660f33

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

    Filesize

    1.3MB

    MD5

    d5e098531d6c0d3d59541f934b62dfba

    SHA1

    182489876f54e3f51fbcb468a04e18f5589f872c

    SHA256

    06b4d1399741e9af55f549e9940319e1ef6ddf42266662142c214d85fd1f72af

    SHA512

    b3c4a064c7603c0f737c805aee4b402634d8e1412a73c9a3acf5a2e9ad9d7e61ef06faa1e6ff3351caba6c2c7869dab6999f978ef6342019cc5a7a4da4660f33

  • memory/1228-38-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-46-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-13-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-17-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-19-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-15-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-21-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-24-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-26-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-30-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-33-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-28-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-35-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-2-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-42-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-40-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-44-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-11-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-48-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-9-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-7-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-1-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-3-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/1228-5-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2572-55-0x0000000002430000-0x00000000024B0000-memory.dmp

    Filesize

    512KB

  • memory/2572-56-0x0000000002430000-0x00000000024B0000-memory.dmp

    Filesize

    512KB

  • memory/2572-54-0x0000000002430000-0x00000000024B0000-memory.dmp

    Filesize

    512KB

  • memory/2572-53-0x000007FEF58C0000-0x000007FEF62AC000-memory.dmp

    Filesize

    9.9MB

  • memory/2572-52-0x0000000000160000-0x0000000000192000-memory.dmp

    Filesize

    200KB

  • memory/2572-147-0x000007FEF58C0000-0x000007FEF62AC000-memory.dmp

    Filesize

    9.9MB

  • memory/2572-148-0x0000000002430000-0x00000000024B0000-memory.dmp

    Filesize

    512KB

  • memory/2572-149-0x0000000002430000-0x00000000024B0000-memory.dmp

    Filesize

    512KB

  • memory/2572-150-0x0000000002430000-0x00000000024B0000-memory.dmp

    Filesize

    512KB