Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ce828c969ea258…

MALICIOUS

PDF

103.2 KB Created: 2021-02-26 03:47:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: ed470634b5d91efa21ebe2c553862318 SHA-1: ba7249ee70be9b6b3bbdffc1381833d616199d5d SHA-256: 60ce828c969ea2589f465c6fecc950c66d03e6d69090c1caba249ad7c781d86c
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing attempt. ClamAV and ML heuristics confirm maliciousness, specifically flagging it as a phishing trojan. The embedded URLs suggest the document's purpose is to redirect users to potentially malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://baarspo.ru/wix?keyword=bdo+level+guide+56-57 PDF link annotation
    • http://wubewaxipezopi.22web.org/58774138670.pdfIn PDF document text
    • https://bevikafu.weebly.com/uploads/1/3/4/7/134710030/vomexotazudaxi-mewofenasopu-risarinatij-dodefaxesutalej.pdfIn PDF document text
    • https://fuzewejobedogu.weebly.com/uploads/1/3/1/4/131482867/2423045.pdfIn PDF document text
    • https://noperutepa.weebly.com/uploads/1/3/4/7/134721309/jaturekakineba.pdfIn PDF document text
    • http://teenagetutor.net/chocolate_milk_factory_near_me2frk3.pdfIn PDF document text
    • http://wide-do.top/samsung_un65ju6500_reviewp95my.pdfIn PDF document text
    • http://ccckkkkk.space/final_fantasy_xv_ps4_trophy_guidez3w1v.pdfIn PDF document text
    • https://funifagokose.weebly.com/uploads/1/3/2/6/132681236/2427438.pdfIn PDF document text
    • https://cdn.sqhk.co/sizozizaj/1fbIeeJ/murder_mystery_box_subscription_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/tisufupujeli/X5ic2pT/street_racing_syndicate_cheat_engine.pdfIn PDF document text
    • https://cdn.sqhk.co/ledodatefu/ajhmhbA/mx_player_pro_mod_apk_latest_version_download.pdfIn PDF document text
    • https://gepumisi.weebly.com/uploads/1/3/4/5/134517510/zosavuterunikul-fafabuturuwala-fibos.pdfIn PDF document text
    • http://lazerepil.site/27959621769gcml6.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/cgejXYQ/fake_gps_location_iphone_jailbreak_ios_13.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://rawuvotatu.rf.gd/european_guideline_variation.pdfIn PDF document text
    • http://tagafivufexe.rf.gd/conversion_of_degrees_to_radians_worksheets.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000127cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127CD 4704 bytes
SHA-256: bc8503f923299de35a4598381af3944f8b0ea873eb5b4da08ef9d6b389b54f20
font_01_sfnt_off000137e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137E2 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00014070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14070 13280 bytes
SHA-256: ab88e8d154abb03b9de2068b057cc8cd00f66966f3a375045422857fc2b48ac4
font_03_sfnt_off00016bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16BCA 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073
font_04_sfnt_off00018092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18092 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e