Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aadb0f9b686a10e…

MALICIOUS

PDF

42.1 KB Created: 2020-08-06 16:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb2bebca346f885c8f7e2bf678178516 SHA-1: 6dc4eedb8ccbd06aa1f8e764e603b48fcd486d48 SHA-256: 6aadb0f9b686a10ea6645ad25eb460683481b64ea84fd4ff2d4f746499b96f13
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=swedish+english+dictionary+download+pdf'. This URL is likely part of a link farm designed to distribute malicious PDFs. The document body, though heavily obfuscated, contains multiple URLs, including the aforementioned redirector and several Shopify links, suggesting an attempt to generate traffic or distribute further content.

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.ru/pify?keyword=swedish+english+dictionary+download+pdf
    • http://files.minigoldendoodlesutah.com/uploads/1/3/0/8/130814717/furolexax-luzifuji.pdf
    • http://files.jarettfajardo.com/uploads/1/3/1/4/131407918/2125320.pdf
    • http://files.estherliano.nl/uploads/1/3/0/8/130874679/bimopoxedinew_vapakilovowasew_debipulub.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0438/2762/6134/files/niwezujak.pdf
    • https://cdn.shopify.com/s/files/1/0437/7057/7058/files/kigiwapedapudaravo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4605/0714/files/puzebefesepakebo.pdf
    • https://cdn.shopify.com/s/files/1/0440/0329/5382/files/tojogivejofevikavobafu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/challenging_calculus_problems_with_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/kubota_zd21_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/1185/8855/files/75861499479.pdf
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/24625848842.pdf
    • https://cdn.shopify.com/s/files/1/0437/1765/6731/files/49747294108.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/lobowizifim.pdf
    • https://cdn.shopify.com/s/files/1/0432/3999/7595/files/sabodejiwulolaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/48756973918.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.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_off00006545.bin
97266848e4aeb90f9236aeca5eb9030ad63a3604cef41420f4b9670d2f89e055		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6545 5716 bytes
font_01_sfnt_off000078d5.bin
38cd2b96188994b30315137ad1c7816f9c4dab08255c55a43dc639f4a80804f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78D5 10156 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.