Malicious PDF — malware analysis report

Static analysis result for SHA-256 815e09d0a0efd8fb…

MALICIOUS

PDF

39.1 KB Created: 2020-08-05 23:02:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b277120abeec094c98ed691747c28da SHA-1: 7652ff40e765a858a3f10d45022111841aa71c3b SHA-256: 815e09d0a0efd8fb3953c2ae53cbc8aec630254c9e969d5ec22087234eae436b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a reference to '1979 cessna 172n poh pdf', likely a lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, suggesting an attempt to obscure the malicious destination.

Heuristics 3

  • 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.
  • 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=1979+cessna+172n+poh+pdf
    • http://files.genesiscarconcepts.com/uploads/1/3/0/7/130776511/mosenezazewarig.pdf
    • http://files.marystringini.com/uploads/1/3/1/4/131454304/61702.pdf
    • http://files.destinationweddingguide.co/uploads/1/3/0/8/130874097/c1ac54c.pdf
    • http://files.correctyourconcrete.com/uploads/1/3/1/3/131379362/xijokerora_jitusaxasusole.pdf
    • http://files.albertawinds.ca/uploads/1/3/2/6/132682966/duzumovi-jazavupubaje-pirologo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/mobumedokor.pdf
    • https://cdn.shopify.com/s/files/1/0429/2945/5263/files/38344807365.pdf
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/dupenaxodotawuronukov.pdf
    • https://cdn.shopify.com/s/files/1/0430/9476/9821/files/57131601946.pdf
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/alg_ii_antrge.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamefidijuj.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/pudel.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/xumosej.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/mekakucity_actors_dub.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005305.bin
3465fd26e75232eefe8714be47eae5a3b80482d08995ddf88f6a2c96df26e1db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5305 5440 bytes
font_01_sfnt_off00006593.bin
265ef6aff2f1e7ec39ec182bfdb9dae0f3907a4f80661e64c6e39c0c9ad49542		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6593 13628 bytes

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