Overview

overview

10

Static

static

FACTURA.xlsx

windows7_x64

10

FACTURA.xlsx

windows10-2004_x64

1

decrypted.xlsx

windows7_x64

10

decrypted.xlsx

windows10-2004_x64

1

Sharing

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General

  • Target

    83d9be0129bf628fd4ad7f850492bf91

  • Size

    41KB

  • Sample

    220629-faqvxsgea6

  • MD5

    83d9be0129bf628fd4ad7f850492bf91

  • SHA1

    9e6ed913a0bd0d04e40135d12e881e4206bcc8da

  • SHA256

    773d63cc0b845b296feaf691024acd91d88ca60bea5be91e9c3d83f23c840e22

  • SHA512

    d4c1083a398b682ea5b22721f92be7b552477b41f1004a4fe498325016e581a33179fb6c71ccbdaa62a211f6e7ce25780944318c3b798533041b8a636f7fedbe

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

      FACTURA.xlsx

    • Size

      21KB

    • MD5

      2b5cfba8b8a8163b8ad47898320781e5

    • SHA1

      4bc6411ac41d9d16745c52d9813fcafff0ce203d

    • SHA256

      b80d9442af9aa6731ff5ec5b3348361ea10b52e37bea9a07cb50b33b99dcf3ea

    • SHA512

      d38bd4957c72e40dd7ae4b46a5036586e54db554f32817c03c012f745044e98a0eea88e3f741f6bbffd95fde97a807805770ba71603c232000ada5c61fd257f3

    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

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      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

    • Target

      decrypted

    • Size

      17KB

    • MD5

      6c484d1c49dbcffb13cdea1076e41013

    • SHA1

      d9e69e6cd9db79fb4282b6fd3dc66eec1f0802bc

    • SHA256

      b270f4d3e32e80cf84f8e45ac716645ec4ca2106734451d62b70260e1edac710

    • SHA512

      775ed0832f9f8a2f464e13b5e2e10ada52c465756c859065e63686a13f1230cb00894ff0120de09e4b130d5471e6b5843ee280ba66cc880b8a03f9f3c2edb3a3

    Score
    10/10
    xloadernn40loaderratsuricata

    • 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

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      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

    • Uses the VBS compiler for execution

    • Suspicious use of SetThreadContext

    behavioral3behavioral4

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

2
T1064

Exploitation for Client Execution

2
T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

2
T1064

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks