Malicious PDF — malware analysis report

Static analysis result for SHA-256 690ec30ca65a6045…

MALICIOUS

PDF

47.0 KB Created: 2020-09-04 03:31:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3feac39b3524876be850c190f3357b0 SHA-1: 614d6eaafb1fcd5be3273e856789413e95e7f1b3 SHA-256: 690ec30ca65a60457a1eb30a87ded9aaa7f8af1c991ef9eca5763a14f76f4d10
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One prominent link, https://ttraff.me/wix?keyword=rustoleum+kitchen+cabinet+transformation+kit, is flagged as malicious redirector infrastructure. The document body, though heavily obfuscated, contains keywords related to product transformation and the malicious URL, indicating a likely phishing or scam attempt to drive traffic to malicious sites.

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.me/wix?keyword=rustoleum+kitchen+cabinet+transformation+kit
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/9689/1807/files/xuwitojuwam.pdf
    • https://cdn.shopify.com/s/files/1/0431/1210/4103/files/xizizogan.pdf
    • https://cdn.shopify.com/s/files/1/0436/1152/1187/files/75814317503.pdf
    • https://cdn.shopify.com/s/files/1/0436/2102/3904/files/2_atoms_and_elements_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/9148/3032/files/87699377382.pdf
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/41836943662.pdf
    • https://cdn.shopify.com/s/files/1/0438/4958/0704/files/carson_dellosa_grade_4_math.pdf
    • https://cdn.shopify.com/s/files/1/0431/1256/2849/files/administrative_assistant_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0441/2892/7896/files/vshare_ios_11._4.pdf
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/10482328401.pdf
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/wezunobofazul.pdf
    • https://cdn.shopify.com/s/files/1/0430/6495/0946/files/piano_notes_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92588710477.pdf
    • https://cdn.shopify.com/s/files/1/0431/9327/0429/files/case_study_analysis_report_sample.pdf
    • https://cdn.shopify.com/s/files/1/0447/2664/8985/files/lunarum.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
stream_004_off00008c1b.bin
65cc1474df923952d42a6532d510be871173d899329c861a30f98a39d5fbb344		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8C1B 10180 bytes
font_00_sfnt_off00007a21.bin
b40c8db780b7c198462b468a585ab35cc4236973511efe7c8b1a08735b2470b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A21 5332 bytes

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