Malicious PDF — malware analysis report

Static analysis result for SHA-256 67abc4ef93008047…

MALICIOUS

PDF

36.5 KB Created: 2020-08-05 15:01:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fe5cf5625a3cc6a9e93623b0c61b601 SHA-1: 154d15e6f22168e6f9516aa6e45e832703cb6d39 SHA-256: 67abc4ef93008047fa2865930c123bacc865df6fdc6680b0c81f6beade76cc2d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including a critical redirector link to ttraff.com, suggesting a phishing or scam attempt. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document's content likely deceives users into installing or interacting with remote support tools. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious lure designed to lead users to malicious infrastructure.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=el+alquimista+pdf+online
    • http://vuloso.despinabphotography.com/uploads/1/3/0/7/130739275/panizefivibirog.pdf
    • http://files.light-sup.com/uploads/1/3/2/6/132681002/lolonegesositub.pdf
    • http://files.vietcapitalcorp.com/uploads/1/3/1/3/131384113/zojikelifazozado.pdf
    • http://files.vmimpressions.com/uploads/1/3/1/4/131407369/2879e4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/7602/5501/files/uthama_villain_songs.pdf
    • https://cdn.shopify.com/s/files/1/0433/4452/7511/files/3849889491.pdf
    • https://cdn.shopify.com/s/files/1/0429/9273/0275/files/tekatatejogafaniluv.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/gedavewunenedus.pdf
    • https://cdn.shopify.com/s/files/1/0433/1061/2644/files/77366300751.pdf
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/english_abbreviation_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/9869/3022/files/15689222910.pdf
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/37514726681.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/worusuval.pdf
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/38783525773.pdf
    • https://cdn.shopify.com/s/files/1/0430/9480/2583/files/ganutunigalobudanavo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/ti_what_you_know_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0438/0504/8994/files/74813435453.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000506e.bin
6cf1c2840aa8be17cb8590a2db8789354c24cc1b68d9c09f6dc4bbbbc4398f0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x506E 5176 bytes
font_01_sfnt_off000061fd.bin
13283f583630fdcc199024f27fecc16c1a3bc64a42797376478c31773b75befb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61FD 9808 bytes

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