Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb47be7aef398f6…

MALICIOUS

PDF

64.4 KB Created: 2020-08-01 08:14:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29970ecda773d03667ef943b0f6b63c8 SHA-1: 4a63228a263203bdeeb9a70ae000aeb85e94cd1f SHA-256: afb47be7aef398f6f190eef038889a62780da18bff1e943f655b5aeeab8cf0d0
194 Risk Score

Malware Insights

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

The PDF document was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that are part of a link farm, with one prominent URL pointing to a redirector. This suggests the primary purpose is to lure users to malicious sites, likely for phishing or to download further malware.

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=the+client+list+season+3 In PDF document text
    • http://files.arcticaudio.com/uploads/1/3/1/4/131454883/vezib_vewuvumabojaxa_busuj.pdfIn PDF document text
    • http://files.kallenakucers.com/uploads/1/3/1/4/131483955/rofabasimiro_bofariju_vituwajitiv_tapodexim.pdfIn PDF document text
    • http://files.repairsworld.com/uploads/1/3/2/7/132712358/fopim.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/1/0431/8615/9767/files/14201551317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/mamumubukasasirenagotufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8116/1111/files/53203175781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7029/1096/files/79238146884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5576/7967/files/53939450762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/fimonikowodenuruxaneju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/redamawinax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/96012145402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3088/0162/files/sidupefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3482/1287/files/37561241250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6119/0559/files/40425605562.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
🗂 Part of campaign: elkfordcurling.ca 4 samples

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF77 4904 bytes
SHA-256: 4798923115b931904e554d39623897a84ef61d927bf3cb02092ab40ceed6502c
font_01_sfnt_off0000d026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD026 10748 bytes
SHA-256: 03a73f084a0fb2dc851c3f02600d13b786c47b36351e364968836e70c2af0a77

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