Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbc2812d28631549…

MALICIOUS

PDF

32.6 KB Created: 2020-08-24 07:15:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1500ec8d109f2869e978c46b67c63cfe SHA-1: 50f6460a7578ea215665307ee0cd041e45bdb8a0 SHA-256: dbc2812d286315491439896b3fd12d73bf99f5f46af09b2622ad151969ca0d3f
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised as a weather report. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content. The document body itself contains the malicious URL and other links, likely intended to deceive the user into clicking the primary malicious link.

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.cc/pify?keyword=weather+report+of+babain+kurukshetra+today In PDF document text
    • http://files.yawenyang.com/uploads/1/3/0/7/130775808/ea49c8b8ad97e74.pdfIn PDF document text
    • http://files.seapoda-arpg.com/uploads/1/3/1/4/131408204/5829334.pdfIn PDF document text
    • http://xebebifag.hockeyaustralia.net/uploads/1/3/0/7/130775797/rivakipezatifesolu.pdfIn PDF document text
    • http://gawefajut.harvestseedacupuncture.com/uploads/1/3/1/3/131380600/vonukukapoxupox.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/1/0430/4375/0049/files/5399862399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1081/8201/files/libro_sobre_arquitectura_de_computadoras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7464/8232/files/fonop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/lista_vencida_axn_cover.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/5233/5009/files/sinegeluzoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1239/0038/files/83161014471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3755/5868/files/vasokurufaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2705/4237/files/xevef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7666/2949/files/dakimugajadub.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4417 5416 bytes
SHA-256: fab11813c9cdf4382455453598bd41d3aa80faaa1734942b906edc026effd36d
font_01_sfnt_off0000568b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x568B 9096 bytes
SHA-256: 274c14bd69c31b8724df4c09e59ec3183679e0c3dc1a76fad1d604c7a2f950c1

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