Overview

overview

10

Static

static

Enquiry.xlsx

windows7_x64

10

Enquiry.xlsx

windows10-2004_x64

1

Sharing

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General

  • Target

    Enquiry.xlsx

  • Size

    163KB

  • Sample

    220628-jyvesshhc3

  • MD5

    341aee89047b751c96ed4278c95fe3c5

  • SHA1

    d5f15e350ff1367a3b1d7f09eec01ce22b818b67

  • SHA256

    51aef5a4b6ae6d9004725202db0b91ba0f68fadf647c644bfca272aaa458d8d4

  • SHA512

    3de04abc50f0c41a80babd60834b85b87e81ec843e3998684c4f2ecd1cf18a2374f04c2485c7148220bbad2429fae9ab61f1a1bae1787fec43d65cb9d235a0de

Score
10/10
xloadernn40loaderratspywarestealersuricata

Malware Config

Extracted

Family

xloader

Version

2.8

Campaign

nn40

Decoy

LYAg0yANOGEAGeaFOrA/

MQWuERZplP+VZy/uszI=

CF0oDN0JimIaGy/uszI=

ltJnyC+ReohYaiTvj1qbEA==

B9OkgdctVKBAFjSUaw==

sbDVwSZVVqVB11/deow8GA==

v1gHDe0pzno=

i+/0n2vHUfGPR98k77tukZ90MQ==

SUtCnbS96Qm21g==

8X9qzyt1dpAo31jXrXfKb49fBPY=

5KlPxqHzSstuFjSUaw==

0r/Kesv/zuanroxvNQW0Gm8=

FFgS7kfPYAqpdhhgRgnBJHY=

LgusAHrkrIoWr0FWIe2o/04UXPw=

vBq9Gvxa9wbKbS/uszI=

Z+q6HAZNNeqwwQ==

wbS4fMb06SjU5Kbseow8GA==

1mZEuZvJ/m0L9bof56PkkZ90MQ==

JCJIM74lHk/o+tiFOrA/

d14FrM8rGEgIzVkT67+3XaEh

Targets

    • Target

      Enquiry.xlsx

    • Size

      163KB

    • MD5

      341aee89047b751c96ed4278c95fe3c5

    • SHA1

      d5f15e350ff1367a3b1d7f09eec01ce22b818b67

    • SHA256

      51aef5a4b6ae6d9004725202db0b91ba0f68fadf647c644bfca272aaa458d8d4

    • SHA512

      3de04abc50f0c41a80babd60834b85b87e81ec843e3998684c4f2ecd1cf18a2374f04c2485c7148220bbad2429fae9ab61f1a1bae1787fec43d65cb9d235a0de

    Score
    10/10
    xloadernn40loaderratspywarestealersuricata

    • Xloader

      Xloader is a rebranded version of Formbook malware.

      loaderxloader

    • suricata: ET MALWARE FormBook CnC Checkin (GET)

      suricata: ET MALWARE FormBook CnC Checkin (GET)

      suricata

    • Xloader Payload

      rat

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Uses the VBS compiler for execution

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Exploitation for Client Execution

1
T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks