Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ad173bfe8e8697f…

MALICIOUS

PDF

64.7 KB Created: 2020-08-07 17:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05c0a2324b8534c4102676166b8f8242 SHA-1: 02142c035f3dcc640edb56c85e164ffcebeee937 SHA-256: 5ad173bfe8e8697fd58c705d964376175ac8d0a87e057b2c53558b2744bf4659
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 'ttraff.com', which is part of a link farm likely intended for SEO manipulation. The document body, though heavily obfuscated, contains a URL that mirrors the malicious redirector. This suggests an attempt to drive traffic to malicious infrastructure, potentially for further exploitation or phishing.

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=the+addams+family+musical+script+pdf
    • http://files.learnabouthmong.net/uploads/1/3/1/1/131164460/7388295.pdf
    • http://files.joshuahookart.com/uploads/1/3/1/4/131407687/rilog_nedofe_xamenevowaseg_pisex.pdf
    • http://files.nducuwangugi.com/uploads/1/3/0/9/130969555/gimuviri-megatanizus-selusifo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/automation_anywhere_control_room_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zozaweguxilamefawe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0108/files/58542075249.pdf
    • https://cdn.shopify.com/s/files/1/0431/4919/7472/files/na_step_working_guide_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/6449/1174/files/7797619595.pdf
    • https://cdn.shopify.com/s/files/1/0436/0414/8381/files/81029640746.pdf
    • https://cdn.shopify.com/s/files/1/0428/0716/5095/files/pizuta.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/latejetusazilofapojanu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/winubuzabivetixezu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/koxabapizuzimoxisibabikif.pdf
    • https://cdn.shopify.com/s/files/1/0435/5594/6647/files/dr_cindy_trimm_prayer.pdf
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/1178267011.pdf
    • https://cdn.shopify.com/s/files/1/0437/1339/6901/files/xunesatug.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_off0000be2d.bin
8d99a9c6f433856e36d45c40ed78175f8870ce47cec28ca0295642fa39839fb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE2D 5444 bytes
font_01_sfnt_off0000d096.bin
df5aa6a1d9a05bb17211c8db960b3edc1dacd8e78598dc6f7a87d0c178763770		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD096 10784 bytes

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