Malicious PDF — malware analysis report

Static analysis result for SHA-256 28aa32f38884834a…

MALICIOUS

PDF

51.3 KB Created: 2020-07-28 22:48:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb1bb8dabbd9abe6766dbc54b61f8161 SHA-1: fc95be1171f19449cb0c6c19e744cd9c01293ca0 SHA-256: 28aa32f38884834a652cc044bbf6660836077977316de70c7992bb0a3b0d1627
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'Clash of Clans online generator apk', reinforcing the lure. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=clash+of+clans+online+generator+apk In PDF document text
    • http://files.lisammartino.com/uploads/1/3/1/8/131871535/rafoxokagin_kigiru_wimebukagata.pdfIn PDF document text
    • http://files.kyleyatesphoto.com/uploads/1/3/2/6/132681901/zubunage-fugejazawosuk-bofezo-nosakuzubadofam.pdfIn PDF document text
    • http://files.colleenshaunawaters.com/uploads/1/3/1/1/131163684/eb9bd4b4.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/1/0432/6824/3624/files/rumemunulezabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/77238628899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/xekuzipodiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2962/4982/files/javukutikuwuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/xesilakatamamunagopizip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/sigoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7836/6885/files/70923985640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8650/3326/files/kozuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4848/4507/files/67570615069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/kunatezare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/313104749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1731/3178/files/wotisodaposanivotosepube.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_off00008973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8973 5152 bytes
SHA-256: 5adac05bdc42c6b5187304ff758108d734219b896abdcd00e9247e6b3817959f
font_01_sfnt_off00009af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF2 11008 bytes
SHA-256: 44196c43123aaf060d7c08015680e2dd9d2b9331dd7283bf43eff81d24a59c1c

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