Malicious PDF — malware analysis report

Static analysis result for SHA-256 2883b08d7d7e67d0…

MALICIOUS

PDF

43.6 KB Created: 2020-08-20 20:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5189c3615724b00abba29b10282a45b0 SHA-1: 5982216ddb979a142ca79849523179fe2db2f408 SHA-256: 2883b08d7d7e67d0558753de1f3e3f528989af83529df52cfe9a9b0bc37b8899
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=building+permit+form+of+ownership'. This URL is presented within the document body, disguised as a 'building permit form of ownership', to entice users to click. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on shopify.com. The primary malicious IOC is the redirector URL, which is likely used to funnel victims 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.cc/pify?keyword=building+permit+form+of+ownership In PDF document text
    • http://files.barefoottraveler.com/uploads/1/3/1/4/131453998/vovijano.pdfIn PDF document text
    • http://files.cgburgin.com/uploads/1/3/1/1/131164519/ditefelumojeb_gojavanokuwupab_mopadefuzuf.pdfIn PDF document text
    • http://files.shopidealbeauty.com/uploads/1/3/1/4/131437689/roxesux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8043/4342/files/dasupew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/enuresis_nokturnal_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/gexawipasozuvujugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/autoimmunity_and_immunodeficiency.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4555/2277/files/towunerowamakaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/how_to_plot_cdf_and_in_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/business_plan_for_food_restaurant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/bms_system_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/ahron_bregman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/65425228498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopafomapezujiwowab.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECF 5268 bytes
SHA-256: d38c2f01a1bb2726fb53a936cd7ab9a9e3cc47438248daeba0bb44cbe9dc53e6
font_01_sfnt_off000070a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A1 10188 bytes
SHA-256: 14dd09e433f6149d73d2cdf96f5fe3aef47d8a5b64e8babe980a3e38cce9cd12
font_02_sfnt_off00009378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9378 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f