Overview

overview

10

Static

static

PO_UCWEB.exe

windows7_x64

10

PO_UCWEB.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:59

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General

  • Target

    PO_UCWEB.exe

  • Size

    800KB

  • MD5

    df0158771e58f80c1346943b393d92f6

  • SHA1

    7293ed7ec4181d06b0f626bd9ebdef74f5e4850a

  • SHA256

    6cfda8d801be1dc0741573babb2b48ccec13814faf7100875d32517d12d3ea60

  • SHA512

    f03cbb9bbc3b183564c309087f5a73cee668791bf3bd12d92d312e95fa1d3a3b3e3858c24158749921bb093edc32704b8b946c7997976c07bba80aaf1fd8c7bb

Score
10/10
collectionspywarestealer

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Blessed000@

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO_UCWEB.exe
    "C:\Users\Admin\AppData\Local\Temp\PO_UCWEB.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4280
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KfuCgI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDEF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1152

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCDEF.tmp
    Filesize

    1KB

    MD5

    7051747047a86a8fc8b1cf5ff9439fab

    SHA1

    cab834337984d5069bbff2bf166ed43e9954b404

    SHA256

    49cda69c3be436e7d7c1f244d8a563de937f7fb8e509d6ba34d715552b290d26

    SHA512

    38f720c54808a9e68a67dbdebf34f27f885b8a5c213092a73bc57f6420e8e3774934677e093bdd7b405da2b5c38c1e0cd3fbd8b85cfe42724fc248a1649b524a

    Download Submit
  • memory/1152-135-0x0000000000000000-mapping.dmp
    Download
  • memory/4280-130-0x00000000009A0000-0x0000000000A6E000-memory.dmp
    Filesize

    824KB

    Download
  • memory/4280-131-0x0000000005AD0000-0x0000000006074000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/4280-132-0x0000000005430000-0x00000000054C2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/4280-133-0x0000000005840000-0x000000000584A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/4280-134-0x0000000008E60000-0x0000000008EFC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/4280-137-0x0000000009800000-0x0000000009866000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4280-138-0x0000000001330000-0x0000000001380000-memory.dmp
    Filesize

    320KB

    Download