Overview

overview

8

Static

static

3

2f85ea349e...4b.exe

windows7-x64

8

2f85ea349e...4b.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    03-08-2024 06:54

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General

  • Target

    2f85ea349ef9b803dc4ceaacb61e489c6aa3f6ab9bf86d6892dab969b5d4224b.exe

  • Size

    410KB

  • MD5

    36ff05770fc5dbdf330c1dc216b8e380

  • SHA1

    4108970aa7e8efce96f07119c9b86e46ae416f78

  • SHA256

    2f85ea349ef9b803dc4ceaacb61e489c6aa3f6ab9bf86d6892dab969b5d4224b

  • SHA512

    5c74276d09c186a833071ee419dabce00703486aa94c9fe09e928531313e9e5afc35fd12ff8a22a830573e4b1f78403e679550bd06f906c1812e0e1b5a838267

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score
8/10
bootkitdiscoverypersistencespywarestealer

Malware Config

Signatures

  • Blocklisted process makes network request 10 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f85ea349ef9b803dc4ceaacb61e489c6aa3f6ab9bf86d6892dab969b5d4224b.exe
    "C:\Users\Admin\AppData\Local\Temp\2f85ea349ef9b803dc4ceaacb61e489c6aa3f6ab9bf86d6892dab969b5d4224b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\umqyn.exe "C:\Users\Admin\AppData\Local\Temp\2f85ea349ef9b803dc4ceaacb61e489c6aa3f6ab9bf86d6892dab969b5d4224b.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2752
      • C:\Users\Admin\AppData\Local\Temp\umqyn.exe
        C:\Users\Admin\AppData\Local\Temp\\umqyn.exe "C:\Users\Admin\AppData\Local\Temp\2f85ea349ef9b803dc4ceaacb61e489c6aa3f6ab9bf86d6892dab969b5d4224b.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2828
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\wcoav\ohpta.dll",Verify C:\Users\Admin\AppData\Local\Temp\umqyn.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

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Downloads

  • \??\c:\Program Files\wcoav\ohpta.dll
    Filesize

    228KB

    MD5

    22fea44916449ffed7ab7a2b75ccfaed

    SHA1

    f4b7a7262ca9ece1c547fb12f53fc0b8bc679919

    SHA256

    b41b406e65dd50e0ce8582db4e1f10bf5f32aa6e535a93a0874ac0c46247b53d

    SHA512

    e7a3c6eeb635461f30bbea835255e490e202bdfa93c66fa2839b0a2f7d19a119183616a6bdc2e5f14897b961280024e18a0924c94d39793f9931013ed5feda35

    Download Submit

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

    410KB

    MD5

    ed7b44c164c41cb434526583b61cad9e

    SHA1

    2f6fa504ea282a639eb5c0515a6db8bfd862bcaa

    SHA256

    dac0bde938381ffa7afc8863223656694d48603632743996ecf170bd4518e908

    SHA512

    1fd80dae84ed70a10f3c60b1a728b93c89bd99d3cac9cbfe0a9bb182cc383c352a38ea8d7acaa45a5d69405b8e82627c7285dc75d1df15d2859a1f4011462425

    Download Submit

  • memory/2612-20-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2612-22-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2612-17-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2612-19-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2612-18-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2696-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2696-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2712-8-0x0000000000410000-0x0000000000474000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2712-7-0x0000000000410000-0x0000000000474000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2828-9-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2828-11-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download