Malicious PDF — malware analysis report

Static analysis result for SHA-256 68dc6494cb4d373d…

MALICIOUS

PDF

52.5 KB Created: 2020-08-13 21:41:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 253bc98f47a3b41d8ecc56583e5173a9 SHA-1: 030a152af5a631b4d230330a9d1331992f7b1a20 SHA-256: 68dc6494cb4d373d1983b7d07fb6e247527333c6773590591c7b02b5b9738125
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=heroes+and+generals+tanks+guide', which is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links, suggesting a phishing or scam attempt to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.cc/pify?keyword=heroes+and+generals+tanks+guide In PDF document text
    • http://files.citadelprenatal.ca/uploads/1/3/0/9/130969061/4093160.pdfIn PDF document text
    • http://files.theresponsiblecapitalist.com/uploads/1/3/1/4/131453615/56fc8690.pdfIn PDF document text
    • http://files.gooleegumcreations.com/uploads/1/3/0/7/130738748/maloladavureta.pdfIn PDF document text
    • http://files.cothams.com/uploads/1/3/0/8/130874370/matowegobejid.pdfIn PDF document text
    • http://files.linkyscloset.com/uploads/1/3/1/3/131378776/vapetikawaza_tuximenelawel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/lejusolugiwebuxesijawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/string_to_lpcwstr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/7878/0837/files/mcqs_on_water_and_electrolyte_balance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/3493/1363/files/bronkiektasis_terinfeksi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/getularedonenekiweri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/gusuwanilusewis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4170/8437/files/70449194757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9567/8359/files/algebra_2_book_pearson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9086/8379/files/71722795139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0620/3803/files/biochips_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/67059161.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 5

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_off00008ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE5 5016 bytes
SHA-256: e9ce71779658d30758c105f49c3edc85e3ef533bceb63cb6da7fd71b6dfb1635
font_01_sfnt_off00009fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FFF 10600 bytes
SHA-256: 5033ddc1fdf438a4a563fe7fe0f94acd8616d7ad20b9b3c345772b70530f31a0

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