Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e2a2754d932ef48…

MALICIOUS

PDF

41.4 KB Created: 2020-08-20 08:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 14ab335f381b459054e117ad8c4f3508 SHA-1: 76443f0909cf74104827f40f23f79fa6e73b5ceb SHA-256: 7e2a2754d932ef481025c84fe4c81533d53b6c448e851297761f0995625bcc42
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) identified as malicious. The document body, though heavily obfuscated, also contains the same malicious URL, suggesting an attempt to trick users into clicking it. The presence of a large number of external links, including PDF files, indicates a link farm strategy, likely for SEO poisoning or phishing.

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=abbaigaru+songs+ing+come In PDF document text
    • http://files.engmandesigns.com/uploads/1/3/1/4/131438616/gikoj_rebuliraru_vamifodas.pdfIn PDF document text
    • http://zigopoz.barriegardenclub.ca/uploads/1/3/2/7/132740873/zurokafeduvila_folej.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/1/0430/2703/8369/files/this_house_has_people_in_it.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/hackedgames._com_rise_of_the_kings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1276/2263/files/sway_app_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7090/5750/files/pes_2013_crek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/wirijonegigixaxuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/96804530556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/varicella_zoster_virus_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/rinesetukuxadatukajipobez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/32101251488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/kibisaguterosomix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/kiketepaxenazil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9979/1265/files/20328847491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3639/files/tagimanep.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4492 3540 bytes
SHA-256: 521db6ca8b200a0710b35711c090563c301a8f412d773b4660282f951e1afab1
font_01_sfnt_off00005124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5124 5216 bytes
SHA-256: b9c6a1ec1199def0037411a1e53cba7f2d6ffb07d939853497b6d746d9a815b8
font_02_sfnt_off000062be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BE 8976 bytes
SHA-256: e5a3e4f7d8e3a8eb8077039a17562c3ba96c83db6419e766b6bb6048641e678f
font_03_sfnt_off000081b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B9 16196 bytes
SHA-256: a9049e2740f28e07ceae22d5f1e2fc0df0884d12edefc4f119790aeee9b14a88