Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    04-07-2022 10:44

General

  • Target

    tmp.exe

  • Size

    825KB

  • MD5

    bd9e301a962082b9f4682f61d31a82b8

  • SHA1

    fee58db4910fe6f69082d0e428381e1f724c110a

  • SHA256

    c7ed8b000f4af6b1df3709af8551cdada6fff8483b882e5de9848742225297c7

  • SHA512

    c71cf344bba39c822c88919704cf0092333026b221c0626d4e95321c22aa03001d3ab5c723301cc7e9a6aac27d2a01704541b63d1dbb3e5907116db37fde0fe1

Malware Config

Extracted

Family

metasploit

Version

windows/reverse_tcp

C2

124.71.29.227:6666

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe"
      2⤵
      • Executes dropped EXE
      PID:628
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      PID:1808
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1972

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Synaptics\Synaptics.exe
    Filesize

    753KB

    MD5

    0b08746a16610d9e17b0a73bd2fcc44d

    SHA1

    355f37b87dfff291cf6243ff5ec017b5a6b0160b

    SHA256

    1165481d3928b1fb91d8b5bea436ecab42f209be754e80f861697cef92f4508c

    SHA512

    6e55f0691426b9d69a06b155d3e48167e95a5d2dce396bf05d0cb1304ee267c015abc0a1e77419a4c7cd2f00762bee7a58a2a2533d1b018a1489296b2d60302c

  • C:\ProgramData\Synaptics\Synaptics.exe
    Filesize

    753KB

    MD5

    0b08746a16610d9e17b0a73bd2fcc44d

    SHA1

    355f37b87dfff291cf6243ff5ec017b5a6b0160b

    SHA256

    1165481d3928b1fb91d8b5bea436ecab42f209be754e80f861697cef92f4508c

    SHA512

    6e55f0691426b9d69a06b155d3e48167e95a5d2dce396bf05d0cb1304ee267c015abc0a1e77419a4c7cd2f00762bee7a58a2a2533d1b018a1489296b2d60302c

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

    72KB

    MD5

    ff1cf4f8ef6995b92c22e165d81afda3

    SHA1

    39ffeb3fb588c55061aacc82cc55156ca09a197a

    SHA256

    a85f5178eccf89eb0514a98f999429fdd684d62ca536194268949ff906f8f42b

    SHA512

    d79bc7c4b5de562d3182dd150e251bb65b6bcd1f13b728b53b95154534d56605fc9e1a376d9e9f9c23774740199a01d184d3a6bf392f2bace50c03f02bb3e5fa

  • C:\Users\Admin\AppData\Local\Temp\Z47s9nRC.xlsm
    Filesize

    17KB

    MD5

    e566fc53051035e1e6fd0ed1823de0f9

    SHA1

    00bc96c48b98676ecd67e81a6f1d7754e4156044

    SHA256

    8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

    SHA512

    a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

  • \ProgramData\Synaptics\Synaptics.exe
    Filesize

    753KB

    MD5

    0b08746a16610d9e17b0a73bd2fcc44d

    SHA1

    355f37b87dfff291cf6243ff5ec017b5a6b0160b

    SHA256

    1165481d3928b1fb91d8b5bea436ecab42f209be754e80f861697cef92f4508c

    SHA512

    6e55f0691426b9d69a06b155d3e48167e95a5d2dce396bf05d0cb1304ee267c015abc0a1e77419a4c7cd2f00762bee7a58a2a2533d1b018a1489296b2d60302c

  • \ProgramData\Synaptics\Synaptics.exe
    Filesize

    753KB

    MD5

    0b08746a16610d9e17b0a73bd2fcc44d

    SHA1

    355f37b87dfff291cf6243ff5ec017b5a6b0160b

    SHA256

    1165481d3928b1fb91d8b5bea436ecab42f209be754e80f861697cef92f4508c

    SHA512

    6e55f0691426b9d69a06b155d3e48167e95a5d2dce396bf05d0cb1304ee267c015abc0a1e77419a4c7cd2f00762bee7a58a2a2533d1b018a1489296b2d60302c

  • \Users\Admin\AppData\Local\Temp\._cache_tmp.exe
    Filesize

    72KB

    MD5

    ff1cf4f8ef6995b92c22e165d81afda3

    SHA1

    39ffeb3fb588c55061aacc82cc55156ca09a197a

    SHA256

    a85f5178eccf89eb0514a98f999429fdd684d62ca536194268949ff906f8f42b

    SHA512

    d79bc7c4b5de562d3182dd150e251bb65b6bcd1f13b728b53b95154534d56605fc9e1a376d9e9f9c23774740199a01d184d3a6bf392f2bace50c03f02bb3e5fa

  • \Users\Admin\AppData\Local\Temp\._cache_tmp.exe
    Filesize

    72KB

    MD5

    ff1cf4f8ef6995b92c22e165d81afda3

    SHA1

    39ffeb3fb588c55061aacc82cc55156ca09a197a

    SHA256

    a85f5178eccf89eb0514a98f999429fdd684d62ca536194268949ff906f8f42b

    SHA512

    d79bc7c4b5de562d3182dd150e251bb65b6bcd1f13b728b53b95154534d56605fc9e1a376d9e9f9c23774740199a01d184d3a6bf392f2bace50c03f02bb3e5fa

  • memory/628-57-0x0000000000000000-mapping.dmp
  • memory/1636-54-0x0000000075841000-0x0000000075843000-memory.dmp
    Filesize

    8KB

  • memory/1808-61-0x0000000000000000-mapping.dmp
  • memory/1972-70-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-77-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-66-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1972-65-0x0000000071621000-0x0000000071623000-memory.dmp
    Filesize

    8KB

  • memory/1972-71-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-73-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-74-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-75-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-72-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-67-0x000000007260D000-0x0000000072618000-memory.dmp
    Filesize

    44KB

  • memory/1972-78-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-79-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-76-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-81-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-80-0x0000000000711000-0x0000000000717000-memory.dmp
    Filesize

    24KB

  • memory/1972-64-0x000000002F101000-0x000000002F104000-memory.dmp
    Filesize

    12KB

  • memory/1972-83-0x000000007260D000-0x0000000072618000-memory.dmp
    Filesize

    44KB