Overview

overview

8

Static

static

3

5af1d42f2a...e5.exe

windows7-x64

8

5af1d42f2a...e5.exe

windows10-2004-x64

8

Analysis

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

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    01/09/2024, 08:11

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General

  • Target

    5af1d42f2a8baae808881bb057bc7622da75ca7c3a618a1fc73851d90a826de5.exe

  • Size

    408KB

  • MD5

    92dc7f1bcfa63f4c62bce2c5c3d0d5c6

  • SHA1

    40e07adf840aecc40fce80bf81722aea588d5671

  • SHA256

    5af1d42f2a8baae808881bb057bc7622da75ca7c3a618a1fc73851d90a826de5

  • SHA512

    c78fd447b8ca315298f6065b724e21e32478aa7390885c9dd6bacd36328ef7bb9b0b9a9e070ed3c484cfd8eb22b135cd3aa8ccd9a435dee97bd0ff54c698fb0a

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4g:gtRfJcNYFNm8UhlZGseg

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\5af1d42f2a8baae808881bb057bc7622da75ca7c3a618a1fc73851d90a826de5.exe
    "C:\Users\Admin\AppData\Local\Temp\5af1d42f2a8baae808881bb057bc7622da75ca7c3a618a1fc73851d90a826de5.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gzwps.exe "C:\Users\Admin\AppData\Local\Temp\5af1d42f2a8baae808881bb057bc7622da75ca7c3a618a1fc73851d90a826de5.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1648
      • 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:1048
      • C:\Users\Admin\AppData\Local\Temp\gzwps.exe
        C:\Users\Admin\AppData\Local\Temp\\gzwps.exe "C:\Users\Admin\AppData\Local\Temp\5af1d42f2a8baae808881bb057bc7622da75ca7c3a618a1fc73851d90a826de5.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:1144
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\uswgjmh\kpyet.dll",Verify C:\Users\Admin\AppData\Local\Temp\gzwps.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:2508

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\uswgjmh\kpyet.dll
    Filesize

    228KB

    MD5

    a5cca0c92418a1f84213640dffac31b5

    SHA1

    086f09d099e50659eb4921b52e69f478149a6e0f

    SHA256

    355c678ae9254199f1533ab1e32d4c061f2d9dbfee0188522e4ed6395d279a7b

    SHA512

    e7fe1fdb26d3e5ae73e1e8cb12fd3b3c2ac5449d4db12be7647ac7c170776475640f08f70a1440b7be6b7f3c6c52792bf66d84fe40cbf7d80d1b18128e2c9b27

    Download Submit

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

    408KB

    MD5

    44b225b1f7809cedcc50d52021dddeee

    SHA1

    544b5a419e1729de50c7af93956eddcd0a24e0ce

    SHA256

    b9e214c5a899bee89684b4e35c04d3ab863ef121a0b146355730bd49f91d7d98

    SHA512

    30d1e7e731b7c330d49606ef21107c692c4cc993aefa7f27040dfeee14bd49d5b51159a896bf7045818501b2d2bc3717b64aaba8fd77fabee393b4d7964e1852

    Download Submit

  • memory/1144-10-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/1648-7-0x0000000000230000-0x0000000000294000-memory.dmp

    Filesize

    400KB

    Download

  • memory/1648-6-0x0000000000230000-0x0000000000294000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2508-16-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2508-17-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2508-19-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2552-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2552-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download