Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d7a62935b29b27…

MALICIOUS

PDF

57.6 KB Created: 2020-08-23 18:46:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8748ad70969c51c401e7ad75fe7ec00 SHA-1: cdab6081cd10a8cebb1df9eb3f846e1271ffaef7 SHA-256: 47d7a62935b29b27cff7ded05513c2b8872ba1b7e57910714484b12696ffd5ba
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=miracle+nikki+chinese+apk'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to other PDFs hosted on cdn.shopify.com, suggesting a coordinated effort to distribute malicious content or engage in SEO manipulation for phishing. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=miracle+nikki+chinese+apk
    • http://files.summasportswear.com/uploads/1/3/1/4/131453807/118d8e22a22790b.pdf
    • http://jofozawe.whitelotusdesigns.com/uploads/1/3/0/8/130814124/paxasozo.pdf
    • http://files.yjhjewellery.com/uploads/1/3/0/7/130776336/zerinajedobu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/rupaxagulazazupazaxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/1674/8188/files/dunagu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/21337787153.pdf
    • https://cdn.shopify.com/s/files/1/0432/6172/2788/files/sanitary_engineering_books.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/food_chemistry_experiments.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/64483315833.pdf
    • https://cdn.shopify.com/s/files/1/0429/0658/3203/files/visiratawilekuxasaru.pdf
    • https://cdn.shopify.com/s/files/1/0440/9350/5688/files/pamebipuvago.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/exam_70_480.pdf
    • https://cdn.shopify.com/s/files/1/0435/3287/7975/files/povufubonamunono.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/2004_audi_a4_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/mavexodajatoxitimajag.pdf
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/61418307898.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6312/files/67143971242.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063db.bin
1bb3b5a1f16cdc1cfe68e65c02057c2292a2745efe73a2cf23963d2b3cf4c8e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63DB 10764 bytes
font_01_sfnt_off0000875a.bin
878029ec1c7bd17e6eefece742ae8694fd5d9fc83b8c010d8607d9c1a67a74b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x875A 5092 bytes
font_02_sfnt_off000098a0.bin
58aec597e2f19bad88372bb84fea22e87c23256dbc4d190abe6cdba5567ebd61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98A0 14792 bytes
font_03_sfnt_off0000c3a5.bin
cacce353daa52449aaa2dc03ff14e12d7f37b8e2e541d6bae97b449db5f5a003		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A5 16248 bytes

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