Analysis

  • max time kernel
    140s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-08-2022 20:17

General

  • Target

    3a127472d8c46c61ab688ef476639e3a.exe

  • Size

    356KB

  • MD5

    3a127472d8c46c61ab688ef476639e3a

  • SHA1

    781f697671f7a3cf13d8cec6aaf621589323c777

  • SHA256

    7258f837b9588fe9a297f48ab9d79e3f02da0196b1adfc9fb02e894744199c3f

  • SHA512

    9ea661beac4b68b44eb6c686fdec0c7ab39c6ccde436be4e38bd02b5337860baf4dc49f2421f8dc95912d7e8896121a23f777e93cf7a5881ad7f8f41a5fd2b25

  • SSDEEP

    6144:EyH7xOc6H5c6HcT66vlml/SI01Jq3ggxDDwCkTTgPOLuNh1k0G6zZf5kdBurgI9U:EagCkDIyNTC6tRkdErrI5

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

Signatures

  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 2 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 51 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a127472d8c46c61ab688ef476639e3a.exe
    "C:\Users\Admin\AppData\Local\Temp\3a127472d8c46c61ab688ef476639e3a.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2680
    • C:\Windows\svchost.exe
      "C:\Windows\svchost.exe" "C:\Users\Admin\AppData\Local\Temp\3a127472d8c46c61ab688ef476639e3a.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\Users\Admin\AppData\Local\Temp\3a127472d8c46c61ab688ef476639e3a.exe
        "C:\Users\Admin\AppData\Local\Temp\3a127472d8c46c61ab688ef476639e3a.exe"
        3⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • System policy modification
        PID:1300
  • C:\Windows\svchost.exe
    C:\Windows\svchost.exe
    1⤵
    • Executes dropped EXE
    • Drops file in Program Files directory
    PID:524

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

5
T1112

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3a127472d8c46c61ab688ef476639e3a.exe
    Filesize

    320KB

    MD5

    4cc06b1f323b4c706fe090276efe2e95

    SHA1

    452ca7e7c48360bda7bd57c717f18147cf5db56e

    SHA256

    9b1038502f7b3387ff72340ff7e956c07947fce5b228d6b8da7f3635462cca7f

    SHA512

    23d75981f1a1347ebb3dae679e624c1822c64dca622d961452903ca8e0438f0ed10b698275084adddaaacd6890e20dfacb70a2525663fb43d192f9f6c1b11e44

  • C:\Windows\svchost.exe
    Filesize

    35KB

    MD5

    83b4da0c5e91e676c355a34ad0fe73da

    SHA1

    09322303503ed0a70613110ca72e1bc790348882

    SHA256

    5ad575dccfe237328de529ea01d57917c5d639ed0d8454a01af98aaea9724110

    SHA512

    20183c78adbabf88ac8999521cc3e1884215f78c264f06cb017dd8749b995adc96559c5a9a39ecda3d2c34390cc5caf7dbf6b90b975d55e2ed129e1993eb5b08

  • C:\Windows\svchost.exe
    Filesize

    35KB

    MD5

    83b4da0c5e91e676c355a34ad0fe73da

    SHA1

    09322303503ed0a70613110ca72e1bc790348882

    SHA256

    5ad575dccfe237328de529ea01d57917c5d639ed0d8454a01af98aaea9724110

    SHA512

    20183c78adbabf88ac8999521cc3e1884215f78c264f06cb017dd8749b995adc96559c5a9a39ecda3d2c34390cc5caf7dbf6b90b975d55e2ed129e1993eb5b08

  • C:\Windows\svchost.exe
    Filesize

    35KB

    MD5

    83b4da0c5e91e676c355a34ad0fe73da

    SHA1

    09322303503ed0a70613110ca72e1bc790348882

    SHA256

    5ad575dccfe237328de529ea01d57917c5d639ed0d8454a01af98aaea9724110

    SHA512

    20183c78adbabf88ac8999521cc3e1884215f78c264f06cb017dd8749b995adc96559c5a9a39ecda3d2c34390cc5caf7dbf6b90b975d55e2ed129e1993eb5b08

  • memory/1300-135-0x0000000000000000-mapping.dmp
  • memory/1300-137-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/1300-139-0x0000000002340000-0x00000000033FA000-memory.dmp
    Filesize

    16.7MB

  • memory/1300-140-0x0000000002340000-0x00000000033FA000-memory.dmp
    Filesize

    16.7MB

  • memory/1300-141-0x0000000000400000-0x0000000000451000-memory.dmp
    Filesize

    324KB

  • memory/2984-132-0x0000000000000000-mapping.dmp