Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb3c6900beb3402…

MALICIOUS

PDF

46.2 KB Created: 2020-07-31 08:50:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23865e140f248341e782938aaafe5f3e SHA-1: b6d33f4eeda9fd420dd596997436dbfc326d7a5d SHA-256: dbb3c6900beb340254643e16cec881595addb74da14e3a179602ee32fac00cb4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external PDF link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to 'basic cambodian phrases pdf'. The primary attack vector is directing users to malicious infrastructure via embedded links.

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.com/pify?keyword=basic+cambodian+phrases+pdf In PDF document text
    • http://files.claystories.com.au/uploads/1/3/0/7/130738852/morafesiva-mesokuzafeja-lezukuruvalozi-begiferatiw.pdfIn PDF document text
    • http://files.forensicconsultingservices.com/uploads/1/3/1/4/131408620/movitotuwiz.pdfIn PDF document text
    • http://files.oscarbaptistchurch.com/uploads/1/3/1/4/131438418/menoxiwisosenimiza.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/1/0429/4744/4903/files/vimusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/pabeledebeled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7637/files/8389142604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6472/7454/files/69967963568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/kumuzakituxeporitukeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0540/0472/files/minivurefipumememobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/jisuberakuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/logibosigubaxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8402/8833/files/bowasurifufavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4537/0528/files/70580671500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6013/2005/files/sajazavogaragoxeri.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 7

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_off000076e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E1 5260 bytes
SHA-256: 9197337088c85d0d1e8f39491785cfb03692ad5d545b10cdac48ccb8940f72a9
font_01_sfnt_off0000886f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886F 10276 bytes
SHA-256: dd29afafb25f2ed7b03fb9d26e74e6d17c1309db3522f8be0b3ffeaabcde4b7e

Open this report in the interactive analyzer, or submit your own file for analysis.