Malicious PDF — malware analysis report

Static analysis result for SHA-256 03e606ff98e88d76…

MALICIOUS

PDF

69.3 KB Created: 2020-08-25 04:33:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90efbb995271ad52efb673461d571c2a SHA-1: 47ba68f0f0f3cb807fe2e04dfc8192ac7bc5830f SHA-256: 03e606ff98e88d76e1839c0dde9368fd6d99717c82f111adc9ba8ecb6fdb7b31
154 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.com, which is likely used to host phishing content or distribute malware. The document body itself contains the URL and text related to an Android application, suggesting a lure to trick users into clicking the malicious link. The presence of numerous other links to Shopify PDFs, while some are benign, indicates a potential link farm or SEO manipulation tactic to obscure the malicious intent.

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=application+arreter+de+fumer+android
    • http://files.themealsmaven.com/uploads/1/3/1/4/131407877/6746353.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/6087/7729/files/generos_literarios_para_nios.pdf
    • https://cdn.shopify.com/s/files/1/0437/5071/9642/files/tusazojezedur.pdf
    • https://cdn.shopify.com/s/files/1/0434/3005/2005/files/37121553385.pdf
    • https://cdn.shopify.com/s/files/1/0433/9911/9013/files/88725586317.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/my_pltw_activity_3._4_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/0905/6668/files/agenesis_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0448/2465/8082/files/a_horse_with_no_name_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0437/0441/8459/files/67767540122.pdf
    • https://cdn.shopify.com/s/files/1/0429/3384/6172/files/brainstorming_rules.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15906675896.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009843.bin
9fdab2c160c7defe6d34054039c9c49a04c6f09081095e5c4e7ed0d22787c162		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9843 5112 bytes
font_01_sfnt_off0000a97e.bin
7c1927c3e6e252d35b3f23ad093541d4f9a2b2c505d8bed18e4cdda3eb6ca500		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA97E 5824 bytes
font_02_sfnt_off0000becc.bin
d56cfb694db69bad71bf07f3e170a87570753bf4e9a1551acf228e6e438e9de6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBECC 13352 bytes
font_03_sfnt_off0000e846.bin
0f12da97da658fc68ca407da5d53e233e6b5d63ea3badca422901505aebf2a03		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE846 16696 bytes
font_04_sfnt_off0000fe96.bin
551918360585b1590efa6fd2a215345b2f702067d151a0e4b48cfa7490b57960		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE96 1736 bytes

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