Malicious PDF — malware analysis report

Static analysis result for SHA-256 8faaaeac561c059e…

MALICIOUS

PDF

52.4 KB Created: 2020-08-23 23:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bde514f468e302c626f7d0512a27a44 SHA-1: 09ecf320fb7354fd94950cbbf3b1c07d3405ce2a SHA-256: 8faaaeac561c059e470d48c83ada00ce9e204677c907b461619ceafe762ee7f6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=fcna+aiims+full+form', which is also flagged as malicious. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt, aiming to drive traffic to malicious sites.

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=fcna+aiims+full+form In PDF document text
    • http://xowinubi.andrewbarnettjones.com/uploads/1/3/0/7/130774993/wilok_rutivakigixugo_zumef.pdfIn PDF document text
    • http://raxidal.empathtoorder.com/uploads/1/3/1/3/131383373/a992d58.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/79457301254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/7030/4935/files/limp_bizkit_break_stuff._mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/free_western_movies_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5175/9269/files/physiology_of_microorganisms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/runisorematizovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/nifekegivedob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8186/6143/files/penejodifofapulujejumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9382/6463/files/1431499763.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C9 4980 bytes
SHA-256: 4c4cdf78af75fed96dbc04fcf41eb699009b5710f978e14927354f9cd0253d70
font_01_sfnt_off00007799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7799 10228 bytes
SHA-256: 69e1c1fc1fe715b3eb4b38ee6ca7d438100532b56fb1ece00e3981d9a6afd2cd
font_02_sfnt_off00009ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE4 16164 bytes
SHA-256: 6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3
font_03_sfnt_off0000b035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB035 5764 bytes
SHA-256: 62ba79f831eceb7fbc253ffc82f6b944733ba62e372a72bf40f6c7b56f3d4d60

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