Malicious PDF — malware analysis report

Static analysis result for SHA-256 27822530a606e9e1…

MALICIOUS

PDF

32.8 KB Created: 2020-08-01 23:53:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46c9000d44ab8df78fa308c4b0cd4bf1 SHA-1: 0f1bac892a8aba257e344dee7196072f3c9b8086 SHA-256: 27822530a606e9e16449fe4a84cf27f288e12e44bd0a48f79675849f860c80bf
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector at 'ttraff.com' which is flagged as malicious. The document body, though heavily obfuscated, contains text related to a 'Netgear nighthawk mr1100 manual', suggesting a lure to trick users into clicking the malicious link. The PDF also contains a large number of links to other PDFs hosted on Shopify, likely part of a link farm to improve search engine ranking for the 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.com/pify?keyword=netgear+nighthawk+mr1100+manual In PDF document text
    • http://files.iwstreecare.com/uploads/1/3/2/7/132740479/wogupu-zukokitoruwogog-zikezugufada-pubuzesilas.pdfIn PDF document text
    • http://files.83elite.net/uploads/1/3/0/7/130775786/00495474e18.pdfIn PDF document text
    • http://files.pooltablesandsupplies.com/uploads/1/3/0/8/130813988/bojosukoxe_jodabavufafufe_xomuworexo_zikelal.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/1/0432/3144/5156/files/27494653396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/65373524895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5667/6507/files/38050899013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2985/4368/files/96101240568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1647/8110/files/ruvatebaborobesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/seporediniworajijate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/64071225953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8406/files/devifunef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/16503343233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/mazorubakezusifuwevami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3411/5233/files/70808553501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3493/4429/files/77978529230.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_off00004543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4543 5240 bytes
SHA-256: 4b3c1dcd6603594ff14cc0abde954576d87d260620ba3089a2531af999069cc9
font_01_sfnt_off00005707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5707 9280 bytes
SHA-256: 87bd1d6220543be8ad6f18b926c8dcc07ef0111567aa9b5ee4fba55f7364ec44

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