Malicious PDF — malware analysis report

Static analysis result for SHA-256 30168bffbc58d598…

MALICIOUS

PDF

45.6 KB Created: 2020-08-04 08:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b674032401749724d6a1f7e67796d3e7 SHA-1: cc479d16202409854b6256fcf0d9f7793b91851f SHA-256: 30168bffbc58d5986dc255f67ed3b1e075447a108e652054949408b7be58eb29
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves redirecting the user to potentially harmful external sites, as evidenced by the malicious URL found. 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=amrutanubhav+granth+pdf In PDF document text
    • http://files.thegardenchild.com/uploads/1/3/1/4/131437636/lajifivimumopowaten.pdfIn PDF document text
    • http://files.veniceconcertband.org/uploads/1/3/0/7/130738716/7974281.pdfIn PDF document text
    • http://files.farmandgardencamp.org/uploads/1/3/0/7/130775025/8900653.pdfIn PDF document text
    • http://files.columbapoetry.com/uploads/1/3/0/7/130739309/812cbd.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0433/4593/6534/files/convert_degree_to_radian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0069/8792/files/vokovesalipepilere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3581/files/tovoxeluvuwakifikujoluno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/ruwitatigefovuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/drug_induced_megaloblastic_anemia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7173/1880/files/gilokolawiweza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/24993430721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/67073575701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/mojoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7111/0308/files/63124073592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mekokagowofulagifofid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/62735147230.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 8

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
stream_005_off00008b01.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8B01 9340 bytes
SHA-256: b337cde2b36e639f60d133b12fb20604c0f5d60119c104b97330d02b206fc457
font_00_sfnt_off00005649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5649 5436 bytes
SHA-256: 31766e8338286f5a82be54fda95c2c84e6e6098ff2019ed1a28fb68a8b42fc2d
font_01_sfnt_off000068a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A1 9976 bytes
SHA-256: 1aa910b6ee1a7df1debe09be05684dfa93c67fb5892823abfeffc8a480eb1b01

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