Malicious PDF — malware analysis report

Static analysis result for SHA-256 029105edc12574bc…

MALICIOUS

PDF

76.6 KB Created: 2020-12-28 00:47:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 33f3253621883e237241730133557e2c SHA-1: 4d06e200800bb1fec8866378a9d62faed1fc29a3 SHA-256: 029105edc12574bc032e67819a333a875e217b7f51f703221b42c12e0bf10a45
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting services, indicating a link farm designed to distribute malware or lead to phishing sites. The presence of a URL with 'utm_term=toca+life+stable+apk+free+download' suggests a lure for users seeking specific software. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/strik?utm_term=toca+life+stable+apk+free+download PDF link annotation
    • https://gajifawegux.weebly.com/uploads/1/3/4/6/134649352/2121033.pdfIn PDF document text
    • https://kerixigepib.weebly.com/uploads/1/3/4/2/134235482/kedosevoxiresakaka.pdfIn PDF document text
    • https://bonolofoguworow.weebly.com/uploads/1/3/4/6/134694868/2962273.pdfIn PDF document text
    • https://cdn.sqhk.co/vumivatuvi/gckignB/instagram_login_history_2018.pdfIn PDF document text
    • https://legovizadedugid.weebly.com/uploads/1/3/1/8/131856283/lojonir.pdfIn PDF document text
    • https://xuwosanilenerev.weebly.com/uploads/1/3/4/9/134900173/saxatinupibabazitos.pdfIn PDF document text
    • https://wemijixug.weebly.com/uploads/1/3/4/8/134888196/rilubevama.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bb9e15b-0ff0-4d59-a659-e66e05c91fcf/my_dear_boss_hacked_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a2ed835-7fe3-4086-af07-532c12eb8f65/cowboy_gun_duel_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/952faae8-4b88-453c-bb1e-2bce0eaa6dba/substitute_for_gruyere_cheese_in_quiche.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3523b8ed-5493-42c6-8987-883dc1fc5504/13892045658.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/famavusozazilukegik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba04ef57-1cfe-471c-b4c4-a3c275c6f0e4/en_francais_aussi_1.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/celine_dion_songs_audio.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9B 5392 bytes
SHA-256: 991dc818af8ae7a64f9e63f3985de755b132bfe3967883062c2d87b0f2d4cd5e
font_01_sfnt_off0000fd11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD11 12784 bytes
SHA-256: cb05c9714b81c43e202ffc95b31d4404d0c726bf3106bcbbf28dcd1af4e014d6

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