Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbf413dfbb4c997e…

MALICIOUS

PDF

78.8 KB Created: 2021-03-27 15:31:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 74e0a65c706555be76b0dd03e59fa1b1 SHA-1: 03742dad00760aab11f7911ce438774476f7e3b5 SHA-256: fbf413dfbb4c997e607fcdeca2aea2806d30ef5653fc8d138ef831a16a3ba349
244 Risk Score

Malware Insights

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

This PDF file is classified as malicious and contains numerous links to external websites, many of which are hosted on disposable domains or known redirectors. The document body, though heavily obfuscated, appears to reference "Golf clash mod apk latest version", suggesting a lure for potentially unwanted software or malware. The embedded URLs are designed to redirect users to malicious infrastructure, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/wix?keyword=golf+clash+mod+apk+latest+version In PDF document text
    • http://ladukusuga.22web.org/14441441335.pdfIn PDF document text
    • https://wubawujol.weebly.com/uploads/1/3/4/2/134266052/jegisasug_rusololupa_wiwagas.pdfIn PDF document text
    • https://katodelof.weebly.com/uploads/1/3/6/0/136051175/luruwamomuj-bazaberov-veluvaz.pdfIn PDF document text
    • https://fatitabo.weebly.com/uploads/1/3/4/7/134757356/6612509.pdfIn PDF document text
    • https://gavurefeg.weebly.com/uploads/1/3/1/0/131070452/luzivanokanokumu.pdfIn PDF document text
    • https://novomuzedideb.weebly.com/uploads/1/3/1/4/131406537/b21ea7ef294797.pdfIn PDF document text
    • https://felekiki.weebly.com/uploads/1/3/4/6/134689652/jitetonorefofukewopi.pdfIn PDF document text
    • https://verulofu.weebly.com/uploads/1/3/4/0/134012380/5477264.pdfIn PDF document text
    • http://nejuwenazi.iblogger.org/lusofituzamigud.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://jifigazanovew.epizy.com/triangle_symbol_android_keyboard.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/zasixudetotoliwajiganiju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85cc1133-cc67-4226-a3ec-55eb2dccb280/kaplan_anatomy_coloring_book_answer_key.pdfIn PDF document text
    • http://robowogutalopet.epizy.com/halloween_english_worksheets.pdfIn PDF document text
    • http://dudotofuzariw.rf.gd/round_table_talk_ideas.pdfIn PDF document text
    • http://xufenazaliwe.epizy.com/levapujidowobi.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/pixukawuzenibiwixema.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/94027559815.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0f621b9-8b54-401d-b364-b06dd868b53b/wendys_pub_fries_nutrition_facts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/241b9960-b548-4578-ad77-423626e9ac95/proving_triangles_congruent_proofs_worksheet_answers.pdfIn PDF document text
    • http://sefamuw.rf.gd/kigudasutuwalupexuvekuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/mosezavor/broken_glass_sound_effect_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/panumarejurigoxoze.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE870 5340 bytes
SHA-256: 5f7adcb9e66605dcde06766d2a354f56a1395cecde8679e3bb3b68d12dc3e62c
font_01_sfnt_off0000fa75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA75 10960 bytes
SHA-256: 3d9c2ba5ab89608b8372763a1043fdddc6a410124cdc2ad7e5bff5580ed0f877
font_02_sfnt_off00011fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FD2 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.