Malicious PDF — malware analysis report

Static analysis result for SHA-256 565ff014cd49ad27…

MALICIOUS

PDF

45.7 KB Created: 2020-08-02 00:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d54ef82157dee7a6dfa5a74c4fbbf221 SHA-1: 6d25f56fb4f40a224081612cb81e2a712c9bcb32 SHA-256: 565ff014cd49ad27a960293f04dc5b766f92f1b344e7536ac2249e990d961dc1
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=abandoned+car+los+angeles'. Additionally, it features a PDF link farm with numerous links hosted on Shopify, many of which are benign but contribute to a deceptive SEO strategy. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be luring the user to a malicious site via the redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=abandoned+car+los+angeles
    • http://files.lorrainesgallery.com/uploads/1/3/1/4/131437308/xokazip-padopoxewaz.pdf
    • http://files.lanarkcountyneighbours.ca/uploads/1/3/1/3/131383541/2ec4c093d3.pdf
    • http://files.pierrevanschalkwyk.art/uploads/1/3/1/0/131070737/2420c671897.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rijakilijupefiwopoxafeza.pdf
    • https://cdn.shopify.com/s/files/1/0434/8955/8680/files/puwazadororuxukolimo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6295/files/phoenix_arms_hp22_problems.pdf
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/96992013894.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/sivemivinubisopalede.pdf
    • https://cdn.shopify.com/s/files/1/0432/9101/7374/files/losujazazuxijixinebigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/gesizibur.pdf
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/43567236414.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/gikaporelajepob.pdf
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/34325142940.pdf
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/75046751367.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066f9.bin
53b348a213e45cbd99988cb6128381fc35d90049b254860c377683a59d3c3793
pdf-font-stream PDF embedded font (sfnt) at offset 0x66F9 4896 bytes
font_01_sfnt_off00007795.bin
c1858c29795401a2c7bc1777a33e9bcfff610c36135ad0f432c93dec47062553
pdf-font-stream PDF embedded font (sfnt) at offset 0x7795 10644 bytes
font_02_sfnt_off00009c0b.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0B 4324 bytes