Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdd42e31b90f460c…

MALICIOUS

PDF

60.4 KB Created: 2020-08-25 05:59:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 704dcd180a3dcb8598f44623faa842f5 SHA-1: 748a838524f52f87b734ce71bc231c4fdf3d8a64 SHA-256: fdd42e31b90f460c99157aba39b4e5545176710ffb11f59d9b50bd2568b73e41
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous external links, many hosted on Shopify. The document body contains text related to a vacuum cleaner and wkhtmltopdf, suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a phishing page or download further malware.

Heuristics 3

  • 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.
  • 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=sac+aspirateur+electrolux+silent+performer+classic
    • http://files.greentreeassociation.com/uploads/1/3/0/7/130740517/koxoke-xunigex-titenowesubi.pdf
    • http://files.limousinesdallas.net/uploads/1/3/1/8/131856491/72db211.pdf
    • http://fikigapuk.andersonwindowsanddoors.net/uploads/1/3/0/7/130776677/forubikol.pdf
    • http://files.deliverydoula.com/uploads/1/3/1/0/131070938/zunolu_bavulawenisil.pdf
    • http://rajore.cocoarmadio.com/uploads/1/3/0/8/130874493/6524196.pdf
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/android_studio_mini_project_with_source_code.pdf
    • https://cdn.shopify.com/s/files/1/0432/6427/8686/files/bobby_mcgee_chords.pdf
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/sogetewo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5893/files/59102046552.pdf
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/imperative_sentences_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/9321061609.pdf
    • https://cdn.shopify.com/s/files/1/0445/6851/0628/files/divugidesibujeguwunipa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/essential_idioms_in_english_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0435/7446/0579/files/60361541634.pdf
    • https://cdn.shopify.com/s/files/1/0448/1197/6855/files/sonicwall_global_vpn_client_download.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000acda.bin
27e0fc417d213fdcc3ba74c92323efb29d286a8acbbf521f4415e02ff89e9314		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACDA 5332 bytes
font_01_sfnt_off0000bedd.bin
8f6f3048acc1ac0f359cb3ae5adb2f475fe8cf742f7cf57692f31e0a8004cd14		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBEDD 11068 bytes

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