Analysis

  • max time kernel
    156s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 19:31

General

  • Target

    d2b70e81fcaa5770ceacd4e708760d95.exe

  • Size

    441KB

  • MD5

    d2b70e81fcaa5770ceacd4e708760d95

  • SHA1

    07c8bbc92e5588b312ebc08ae1119abff7b8d7e1

  • SHA256

    61e2c6c378e1a2732efb70d5df248936b38ec60d7f98527525a428f978270501

  • SHA512

    70234ab537cf7dd63630b68466ce4679b183d76fae9c199e227e24105ad594071b47af4b800180ad428d441b29358b78c530106972aa458b1f557a8203b1d7d4

Malware Config

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Windows directory 4 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 5 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 55 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d2b70e81fcaa5770ceacd4e708760d95.exe
    "C:\Users\Admin\AppData\Local\Temp\d2b70e81fcaa5770ceacd4e708760d95.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2460
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 1152
      2⤵
      • Drops file in Windows directory
      • Program crash
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3464
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2996
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3368
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:380
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2460 -ip 2460
    1⤵
    • Suspicious use of NtCreateProcessExOtherParentProcess
    • Suspicious use of WriteProcessMemory
    PID:2756

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2460-130-0x00000000009ED000-0x0000000000A19000-memory.dmp
    Filesize

    176KB

  • memory/2460-131-0x00000000009ED000-0x0000000000A19000-memory.dmp
    Filesize

    176KB

  • memory/2460-132-0x0000000000930000-0x0000000000969000-memory.dmp
    Filesize

    228KB

  • memory/2460-133-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2460-134-0x00000000744EE000-0x00000000744EF000-memory.dmp
    Filesize

    4KB

  • memory/2460-135-0x0000000005140000-0x0000000005141000-memory.dmp
    Filesize

    4KB

  • memory/2460-136-0x0000000005150000-0x00000000056F4000-memory.dmp
    Filesize

    5.6MB

  • memory/2460-137-0x0000000005142000-0x0000000005143000-memory.dmp
    Filesize

    4KB

  • memory/2460-138-0x0000000005143000-0x0000000005144000-memory.dmp
    Filesize

    4KB

  • memory/2460-139-0x0000000005700000-0x0000000005D18000-memory.dmp
    Filesize

    6.1MB

  • memory/2460-140-0x0000000005020000-0x0000000005032000-memory.dmp
    Filesize

    72KB

  • memory/2460-141-0x0000000005D20000-0x0000000005E2A000-memory.dmp
    Filesize

    1.0MB

  • memory/2460-142-0x0000000005144000-0x0000000005146000-memory.dmp
    Filesize

    8KB

  • memory/2460-143-0x0000000005060000-0x000000000509C000-memory.dmp
    Filesize

    240KB

  • memory/2460-144-0x0000000006070000-0x0000000006102000-memory.dmp
    Filesize

    584KB

  • memory/2460-145-0x0000000006110000-0x0000000006186000-memory.dmp
    Filesize

    472KB

  • memory/2460-146-0x0000000006310000-0x000000000632E000-memory.dmp
    Filesize

    120KB

  • memory/2460-147-0x0000000006380000-0x00000000063E6000-memory.dmp
    Filesize

    408KB

  • memory/2460-148-0x0000000006BD0000-0x0000000006D92000-memory.dmp
    Filesize

    1.8MB

  • memory/2460-149-0x0000000006DB0000-0x00000000072DC000-memory.dmp
    Filesize

    5.2MB