Malicious PDF — malware analysis report

Static analysis result for SHA-256 d22bcff71601abe2…

MALICIOUS

PDF

40.9 KB Created: 2020-08-21 20:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b174209885dd6a8d619670446546fe8 SHA-1: 1e5037e5ec2bd5d7fc9ef6a74a3078207702c296 SHA-256: d22bcff71601abe2fced324c017ddc91cc82a76632323b3ec636cc910c7a41c3
214 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and links to known malicious redirector infrastructure. The primary malicious URL, https://ttraff.com/pify?keyword=java+windows+7, is designed to redirect the user to further malicious content. The document body, though heavily obfuscated, contains references to 'Java windows 7' and the redirector URL, suggesting a social engineering lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning attempt to distribute the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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=java+windows+7 In PDF document text
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/130814672/sodumavasoso_sugenufefigu_tinivotosuna_sezomojodupebe.pdfIn PDF document text
    • http://files.gehringerwines.ca/uploads/1/3/1/6/131606186/ralanojoz_zodufefu_luxedek.pdfIn PDF document text
    • http://nuxumuvir.babyg-lash.com/uploads/1/3/0/7/130775583/1617803.pdfIn PDF document text
    • http://durow.riveflowyoga.com/uploads/1/3/1/4/131454950/buzifusalatapos-zeliwirabejepe-fepemaletotedet-gupozitoxuwep.pdfIn PDF document text
    • http://files.alittlelively.com/uploads/1/3/2/6/132683154/de65e0cdbd396ea.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/1/0433/3699/0885/files/bufeguvami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/belageddu_yara_mukava_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9051/7917/files/lawn_mowing_business_start_up_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7850/6904/files/73918636305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9523/6513/files/warframe_ivara_farming_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/28713189555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5305/5128/files/vogatasiran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/91795418246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/fuzuli_su_kasidesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6408/1046/files/95582351651.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6309 4912 bytes
SHA-256: a5aa029a4365d3b73e3930bdca8651e238f18a5ceebe9b6c1dbb82f96138b411
font_01_sfnt_off000073ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73EC 10308 bytes
SHA-256: 7bf4d8cb3a249f29f16a84b026976cb4aa5068a5697ac07bd8848f8f457edf58