Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    14-09-2022 22:02

General

  • Target

    tmp.exe

  • Size

    1.1MB

  • MD5

    d6df53506b123f5717463d0355336979

  • SHA1

    7720fb4b89a4ebcef32a6d6a9a7a88c65cad2c14

  • SHA256

    70969f1d56ec1ddcae3fc50545c0a351b798226c62d870db8ae5170eeec67694

  • SHA512

    1bfefa221ed77ef05fc72fbc20a322cae990b2a33a9af47b9ee4d9fa1c09d5c81f6a8fd8496ed43a47ee2862e1e2bf1651b4cca2f5e9e23e491c3d4b3249ad2f

  • SSDEEP

    12288:0MSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9Vih81hnr39hf:0nsJ39LyjbJkQFMhmC+6GD9Dnnj

Malware Config

Signatures

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Chinese Botnet payload 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies data under HKEY_USERS 49 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 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:1200
    • C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:892
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      PID:1300
  • 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:1724
  • C:\Program Files (x86)\Microsoft Eeuaeq\Peahrfb.exe
    "C:\Program Files (x86)\Microsoft Eeuaeq\Peahrfb.exe"
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Program Files (x86)\Microsoft Eeuaeq\Peahrfb.exe
      "C:\Program Files (x86)\Microsoft Eeuaeq\Peahrfb.exe" Win7
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      PID:2024

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

4
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Microsoft Eeuaeq\Peahrfb.exe
    Filesize

    400KB

    MD5

    f82f50d6a61d3d73172fcbf3ff665e89

    SHA1

    2e5cde938a2822a13348e55f4ad0dfa75d545fee

    SHA256

    afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd

    SHA512

    f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb

  • C:\Program Files (x86)\Microsoft Eeuaeq\Peahrfb.exe
    Filesize

    400KB

    MD5

    f82f50d6a61d3d73172fcbf3ff665e89

    SHA1

    2e5cde938a2822a13348e55f4ad0dfa75d545fee

    SHA256

    afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd

    SHA512

    f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb

  • C:\Program Files (x86)\Microsoft Eeuaeq\Peahrfb.exe
    Filesize

    400KB

    MD5

    f82f50d6a61d3d73172fcbf3ff665e89

    SHA1

    2e5cde938a2822a13348e55f4ad0dfa75d545fee

    SHA256

    afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd

    SHA512

    f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb

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

    754KB

    MD5

    310a7ff41f6633132e6c2bc25e51e567

    SHA1

    5f687df8cc3185ed68d77d0e05502c2eb308c5c8

    SHA256

    d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

    SHA512

    ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

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

    754KB

    MD5

    310a7ff41f6633132e6c2bc25e51e567

    SHA1

    5f687df8cc3185ed68d77d0e05502c2eb308c5c8

    SHA256

    d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

    SHA512

    ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

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

    400KB

    MD5

    f82f50d6a61d3d73172fcbf3ff665e89

    SHA1

    2e5cde938a2822a13348e55f4ad0dfa75d545fee

    SHA256

    afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd

    SHA512

    f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb

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

    400KB

    MD5

    f82f50d6a61d3d73172fcbf3ff665e89

    SHA1

    2e5cde938a2822a13348e55f4ad0dfa75d545fee

    SHA256

    afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd

    SHA512

    f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb

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

    17KB

    MD5

    e566fc53051035e1e6fd0ed1823de0f9

    SHA1

    00bc96c48b98676ecd67e81a6f1d7754e4156044

    SHA256

    8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

    SHA512

    a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

  • \ProgramData\Synaptics\Synaptics.exe
    Filesize

    754KB

    MD5

    310a7ff41f6633132e6c2bc25e51e567

    SHA1

    5f687df8cc3185ed68d77d0e05502c2eb308c5c8

    SHA256

    d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

    SHA512

    ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

  • \ProgramData\Synaptics\Synaptics.exe
    Filesize

    754KB

    MD5

    310a7ff41f6633132e6c2bc25e51e567

    SHA1

    5f687df8cc3185ed68d77d0e05502c2eb308c5c8

    SHA256

    d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

    SHA512

    ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

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

    400KB

    MD5

    f82f50d6a61d3d73172fcbf3ff665e89

    SHA1

    2e5cde938a2822a13348e55f4ad0dfa75d545fee

    SHA256

    afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd

    SHA512

    f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb

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

    400KB

    MD5

    f82f50d6a61d3d73172fcbf3ff665e89

    SHA1

    2e5cde938a2822a13348e55f4ad0dfa75d545fee

    SHA256

    afbf8e478edc3d239953a3653a5ec113363fb9406552536d6469581b52585bcd

    SHA512

    f5945f9c5b4cfcd29498b24ec43000e6ec2927ec264d758aeeb4325f4c5f2b1d03fb997c84b38daec82b4a1dbc9f049b932ca399ef02778072cf594b1b5044fb

  • memory/892-65-0x0000000010000000-0x0000000010018000-memory.dmp
    Filesize

    96KB

  • memory/892-57-0x0000000000000000-mapping.dmp
  • memory/1200-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp
    Filesize

    8KB

  • memory/1300-61-0x0000000000000000-mapping.dmp
  • memory/1724-75-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-85-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-77-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-79-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-78-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-80-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-81-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-82-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-83-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-76-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-84-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-74-0x0000000000494000-0x000000000049A000-memory.dmp
    Filesize

    24KB

  • memory/1724-71-0x00000000727DD000-0x00000000727E8000-memory.dmp
    Filesize

    44KB

  • memory/1724-70-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1724-93-0x00000000727DD000-0x00000000727E8000-memory.dmp
    Filesize

    44KB

  • memory/1724-68-0x000000002F531000-0x000000002F534000-memory.dmp
    Filesize

    12KB

  • memory/1724-69-0x00000000717F1000-0x00000000717F3000-memory.dmp
    Filesize

    8KB

  • memory/2024-95-0x0000000000000000-mapping.dmp