Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf72b9788f29859…

MALICIOUS

PDF

45.2 KB Created: 2020-08-21 10:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65622a503525991525fd1e66df14fdc4 SHA-1: ecf38966277c6848aff0768ef4c2742753a2d5f8 SHA-256: 6bf72b9788f29859c89360e4340585ccb1e6281bd5b2502df06ba229bd8ad651
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure at https://ttraff.com/pify. The document body, though heavily obfuscated, also contains this URL and other links to potentially malicious domains. The presence of a large number of external PDF links suggests a link farm or SEO manipulation tactic to distribute malicious 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.com/pify?keyword=in+case+of+emergency+form+template+free
    • http://vozokifo.lonestarweimclub.com/uploads/1/3/1/1/131164250/db9b7a80.pdf
    • http://xasefori.stephaniebuckle.com/uploads/1/3/1/4/131437607/7446732.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/3174/0066/files/87420441538.pdf
    • https://cdn.shopify.com/s/files/1/0440/3144/3094/files/37979663690.pdf
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/42275842320.pdf
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/53258344379.pdf
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/airplay_and_upnp_apk_fire_tv.pdf
    • https://cdn.shopify.com/s/files/1/0430/7625/5897/files/metformin_dosage_pcos_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0435/4621/4564/files/treble_booster_app_for_android_phone.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/exploding_kittens_card_game.pdf
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/xebedurifepe.pdf
    • https://cdn.shopify.com/s/files/1/0439/2163/7544/files/zokeremufeluvimax.pdf
    • https://cdn.shopify.com/s/files/1/0437/0703/9912/files/56014288236.pdf
    • https://cdn.shopify.com/s/files/1/0435/0921/9492/files/agisoft_photoscan_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006632.bin
c8de17079ab3f4e236d5ed8be585ec028c9b93ef0a4763b34417c63f761697c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6632 5112 bytes
font_01_sfnt_off00007778.bin
c6b42d0e2a61c9bb89a4d220ad0d888cf1e1d67170f166d7202d0f72dd3fca65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7778 9936 bytes
font_02_sfnt_off0000997a.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x997A 4324 bytes

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