Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f8f1ca3a101c0a…

MALICIOUS

PDF

56.5 KB Created: 2020-08-25 08:50:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03d83580130fa6d49ead795550eb4d7e SHA-1: 059621776c9ff3799eb9a3cedd6cc11b043ada80 SHA-256: 29f8f1ca3a101c0a61285f6f4bdf0fd42011434eee3d2d8b0585c59bf4b94b24
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. The primary malicious indicator is the link to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, contains the target URL, indicating an attempt to direct users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=how+to+cite+ipcc+report
    • http://files.musicforminors2.org/uploads/1/3/2/6/132696483/bibebax.pdf
    • http://files.alexandracerutti.com/uploads/1/3/1/3/131380733/6806456.pdf
    • http://files.roomtomovestudio.com/uploads/1/3/0/7/130738607/lilulesax.pdf
    • http://najivan.provideacare.net/uploads/1/3/0/7/130775085/xakavupagu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1335/6189/files/us_states_abbreviations.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mapitawaluzosamorexub.pdf
    • https://cdn.shopify.com/s/files/1/0448/4556/4065/files/12_week_boxing_training_program.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/watermark_remover_from_online.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/wodogipirite.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/63910973826.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/twitter_player_cards.pdf
    • https://cdn.shopify.com/s/files/1/0434/9997/8904/files/kegiselobogilujulufo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7230/6846/files/teri_aankhon_ka_kajal_song_wapking.pdf
    • https://cdn.shopify.com/s/files/1/0460/9182/9412/files/97102365811.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_off000093fc.bin
e4e97fa5a97146b895faf00d3afe08744d396edb80e1df30fa71445e12e4de54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93FC 4240 bytes
font_01_sfnt_off0000a27c.bin
138d41f6476500337394e33531f3bb44c178119461e959002e468e48898c838e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA27C 10544 bytes
font_02_sfnt_off0000c6a0.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6A0 4324 bytes

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