Malicious PDF — malware analysis report

Static analysis result for SHA-256 03a08be8bc5aea19…

MALICIOUS

PDF

50.5 KB Created: 2020-10-31 00:46:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4587e63bfefb59fdb9305a4847c9c37c SHA-1: 36a92c383a5e3744a905a35fd07d891333b963cd SHA-256: 03a08be8bc5aea19d9a356c16983079267ccb3a74bb701694435ed43cce3a1e4
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to SEO-optimized PDFs, designed to funnel users towards a malicious redirector. The primary malicious URL identified is ttraff.me, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to 'Gta big smoke order' and the malicious URL, suggesting a lure. No scripts were extracted, but the presence of embedded URLs and the PDF redirector heuristic strongly indicate a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ttraff.me/123?keyword=gta+big+smoke+order In PDF document text
    • https://dedezeke.weebly.com/uploads/1/3/4/4/134494225/naxurelikipafa.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
    • https://cdn.shopify.com/s/files/1/0510/4769/4501/files/renie_tl_words_the_vine_answer_key_if87021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/0510/6102/files/deluge_rpg_hack_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8170/3319/files/acids_and_bases_worksheet_answer_key_pogil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9946/3073/files/wavedibukopagemurinetorag.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/45629192069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7088/4514/files/the_fate_of_ten_read_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/6666/8230/files/zenijofosijesog.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/income_tax_amendments_for_ay_2019_20_icai.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/5763/9335/files/denfeld_high_school_hockey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0508/2339/7541/files/pimesugasojumu.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/original_7_wonders_of_the_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2945/5271/files/67547015963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6250/4855/files/the_legend_of_zelda_1_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/pci_syllabus_b._pharm_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/55588997477.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/19495007767.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_off00007600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7600 5028 bytes
SHA-256: a155e526343c420dd9da4bc083d8e087d3e581bd3af79bae09c7bad92a810761
font_01_sfnt_off00008724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8724 12212 bytes
SHA-256: a1ca4fb665192876520aa41cc151bca8b609e27e66997a6b195ad18a3ed90fd6
font_02_sfnt_off0000af29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF29 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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