Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e209d65d37c81b…

MALICIOUS

PDF

43.2 KB Created: 2020-08-24 03:19:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c4cd9a184cda73fe378994e77d0e252 SHA-1: 88dd471930a47132d8bd6983493d45fcb98be1de SHA-256: e9e209d65d37c81b5276601d869f1ca6d8cab588a5d2bef8fb25077fb1846e43
194 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=bursaries+for+bcom+informatics'. Additionally, it exhibits a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to obscure the final malicious destination. The document body, though partially corrupted, contains the same keyword as the redirector URL, indicating a lure to encourage clicks. 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.ru/pify?keyword=bursaries+for+bcom+informatics In PDF document text
    • http://mumuji.autoservicearlingtontx.com/uploads/1/3/0/7/130775169/vaxobojox-kixirek-sazuse.pdfIn PDF document text
    • http://riteminet.masterlimstkd.com/uploads/1/3/0/7/130738943/4459328.pdfIn PDF document text
    • http://files.leesteadmanwelding.fr/uploads/1/3/0/7/130740443/sujebelavapa_jejusotevoxexu_rexigobiwina.pdfIn PDF document text
    • http://relok.cozmoblack.com/uploads/1/3/1/4/131453870/7742451.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/1/0429/8709/4179/files/notalisorodovofudulebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/13575625180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0629/5201/files/pikajinibimuvazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/foxejuwasujexurexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/7878/0837/files/apertura_a_la_experiencia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/baraguxifizifinezorupom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/simplicity_sewing_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5122/7038/files/xelitivev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1818/9980/files/20530743477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4935/2349/files/60858869944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/java_bank_account_code.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_off00005ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED7 5068 bytes
SHA-256: 21272a45af60dc66702ffdfd2aae916331dd811b01272a7fad79208d6507a0ee
font_01_sfnt_off00006ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF6 9848 bytes
SHA-256: 5f4b32f49840ea650b5522051834909076db890b7b506d00ceae8c9aafd9cc09
font_02_sfnt_off000091ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91AC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f