Malicious PDF — malware analysis report

Static analysis result for SHA-256 696c8cf0b2749eb3…

MALICIOUS

PDF

48.3 KB Created: 2020-07-08 11:59:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 0e4268b0430870cb0473d559997215eb SHA-1: 4372d0e082b3d8aca64ebac5f5c3963250a9e9bc SHA-256: 696c8cf0b2749eb371da9f63e175ef35e024f45d064ff1070195c66fedaa9f54
184 Risk Score

Malware Insights

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

This PDF document functions as a link farm, embedding numerous URLs disguised as sheet music. The primary redirector URL, https://ttraff.cc/wb?keyword=lakme%20flower%20duet%20sheet%20music%20pdf, is flagged as malicious. The document's structure and the sheer volume of outbound links suggest an attempt to drive traffic to potentially malicious or unwanted sites, likely for SEO manipulation or to host 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wb?keyword=lakme%20flower%20duet%20sheet%20music%20pdf In PDF document text
    • http://files.lkoc.org/uploads/1/3/1/3/131383497/bofepowoj.pdfIn PDF document text
    • http://files.southtownscatholic.org/uploads/1/3/1/6/131636990/3996155.pdfIn PDF document text
    • http://files.sbcopywriting.com/uploads/1/3/2/7/132740218/644292.pdfIn PDF document text
    • http://files.rjhomecontractor.com/uploads/1/3/2/7/132740398/b386d19.pdfIn PDF document text
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdfIn PDF document text
    • http://files.pamsteashoppe.com/uploads/1/3/1/3/131384789/59b03f6f49c09c.pdfIn PDF document text
    • http://files.mortarandpestleproductions.com/uploads/1/3/1/4/131407823/3555731.pdfIn PDF document text
    • http://files.zamdevelopsj.org/uploads/1/3/1/1/131164534/7449164.pdfIn PDF document text
    • http://files.tarotartist.net/uploads/1/3/2/6/132681938/8280551.pdfIn PDF document text
    • http://files.shodacars.com/uploads/1/3/1/0/131071035/mujig-podasavikuxiro-jolijifajene.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://zetawofuzuti.files.wordpress.com/2020/07/poligixokeguv.pdfIn PDF document text
    • https://jiledudosiso.files.wordpress.com/2020/06/sesowob.pdfIn PDF document text
    • https://voxemodu.files.wordpress.com/2020/07/rolodofufer.pdfIn PDF document text
    • https://gefasiku.files.wordpress.com/2020/07/10653361982.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6762 5268 bytes
SHA-256: 53883cfe19a74b75fc236820a41c4b8f5088c269ceb57739b9fb4b34530c31a6
font_01_sfnt_off0000796b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796B 10576 bytes
SHA-256: 905b8eb5f509bf224ebda12fe2b9548ab05611b66d589212a761177ce764f278
font_02_sfnt_off00009d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9D 16120 bytes
SHA-256: fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd

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