Malicious PDF — malware analysis report

Static analysis result for SHA-256 31896136c80f623d…

MALICIOUS

PDF

42.6 KB Created: 2020-08-17 16:58:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b49452026a503a215f359837e5a13bd9 SHA-1: dc73f03b1997826fa8d66fa69605860d75adcc14 SHA-256: 31896136c80f623d85a94a9c70ea92465bbbae0809d051f075973f2b7c471102
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to a malicious site. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'magnesium from seawater to fireworks answers'. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase the visibility of the malicious redirector. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=magnesium+from+seawater+to+fireworks+answers In PDF document text
    • http://files.pointepoa.org/uploads/1/3/2/6/132696483/kumirazowoga_momamedarofem_sumufiwedoresan_fatoxijupeziv.pdfIn PDF document text
    • http://tisuba.gtqueens.com/uploads/1/3/0/8/130874050/zusuzajawejaj_tupenuseku_bamebewu_luvaxedamole.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/1/0432/7761/5262/files/85447214822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/42296246059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0052/8033/files/believe_in_yourself_you_are_amazing_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3756/4823/files/vakosovuzunegaluzar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/android_appcompat_v7_error.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7526/4924/files/33468135495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5698/0377/files/x_ambassadors_love_songs_drug_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8133/4933/files/lotumegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/51129355329.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 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD8 5096 bytes
SHA-256: 5ae3a0e99f46e3e397f2952b0ee9a2f7760258ba5d9d0427cb6b0a7191c42bf6
font_01_sfnt_off00006c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2F 10440 bytes
SHA-256: 77526b7cef2d7d0e68531732ccf879fcc166eceaeb4b7ea426a2253e13e121ae
font_02_sfnt_off00008fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FBD 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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