Malicious PDF — malware analysis report

Static analysis result for SHA-256 bba1b29785dede65…

MALICIOUS

PDF

45.5 KB Created: 2020-08-02 04:56:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60be8cbcf7ddc24499ee5ffd845fcbec SHA-1: 5d9ef1194932fb8ea431f1f3d62b0d74eeb2f3df SHA-256: bba1b29785dede65a3461906223128b7233aa17d855270350f72c05473fa54c4
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=rev+run+net+worth+2016 as malicious. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of numerous other links, many pointing to Shopify, indicates a potential link farm or SEO manipulation tactic to obscure the malicious destination. No scripts were extracted from this sample.

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.ru/pify?keyword=rev+run+net+worth+2016
    • http://files.aliromanow.com/uploads/1/3/1/8/131856212/c55d3abd8028.pdf
    • http://files.entropiatrade.com/uploads/1/3/1/4/131411539/zewosu-pugijefedigubab-kekalopirik-wojigoradad.pdf
    • http://files.flipconsultants.com/uploads/1/3/0/8/130874347/zigunodegolidota.pdf
    • http://files.tahlequahtrails.org/uploads/1/3/1/4/131454286/vavarifinosi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8497/2183/files/53020742364.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/killer_instinct_mame_rom.pdf
    • https://cdn.shopify.com/s/files/1/0435/8527/4024/files/5911488747.pdf
    • https://cdn.shopify.com/s/files/1/0446/2634/6147/files/google_form_webhook.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/xubisakazak.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/voxazidepolorod.pdf
    • https://cdn.shopify.com/s/files/1/0430/8638/1210/files/nenejasosiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/fegokovisopigudifukew.pdf
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/jumabomupajo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/66974292376.pdf
    • https://cdn.shopify.com/s/files/1/0435/3759/6575/files/disebidide.pdf
    • https://cdn.shopify.com/s/files/1/0434/0813/0197/files/59310052079.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_off00007361.bin
54c1c2f50191d09ba0b9cf886a2114fe6819e3ea689adfeab69b8598fbfa905b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7361 4992 bytes
font_01_sfnt_off0000847b.bin
61edd64366faaf211f500576670e4bb49b0e352bfe84c6049b929812c42eaecc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x847B 10712 bytes

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