Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae7290989ecfd6d4…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 12:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7daa0be5c4247bcc1272f29591526242 SHA-1: 860241a41bfa29d6d026e9a36cdbf8a5a7bde3d5 SHA-256: ae7290989ecfd6d4da9a1bd23abf169362ef83af32f147cb0f3316a541baf7fb
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at https://ttraff.com/pify?keyword=how+to+cite+pdf+article+apa+style. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious content. No scripts were extracted from this sample.

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=how+to+cite+pdf+article+apa+style In PDF document text
    • http://files.washingtonneedle.com/uploads/1/3/1/6/131607027/bugipesetaxib.pdfIn PDF document text
    • http://fegawaw.elementalpsychotherapy.com/uploads/1/3/0/7/130739415/mifosikatul_poxenunim_xotoju.pdfIn PDF document text
    • http://files.nicholslawpdx.com/uploads/1/3/1/3/131379049/e237e78444cbb25.pdfIn PDF document text
    • http://files.mindactionplan.com/uploads/1/3/0/7/130738794/fonixajade.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/1/0428/5290/9212/files/va_form_21p-_8416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9561/1810/files/52502850843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/posebusibebozevev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4243/0362/files/angielski_sownictwo_chomikuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1484/7655/files/oxford_english_spelling_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/24335970548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/metevuzupakatepuvufopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/8574/4552/files/astronomy_books_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3817/8470/files/weight_conversion_nhs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/arquitectura_bioclimatica_tesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4645/1862/files/tx9xd-_98n7v-_6wmq6-_bx7fg-_h8q99.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1335/8247/files/mibowanixevusamot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/raxarapodanunokolugojin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/68969699996.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_off000066b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B4 4984 bytes
SHA-256: b7d2711b54e0c7c0f86072d23a0feae0a76472e2e4e4aa6ffcbcf467ad98fe41
font_01_sfnt_off000077ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CA 9704 bytes
SHA-256: 49c7434a5335cfe2d6134f7df5b3bb51cf7b828c999d61dd3b4feb2b6fbb1832
font_02_sfnt_off000098f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F0 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c