Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47a94295b607ea7…

MALICIOUS

PDF

46.5 KB Created: 2020-08-20 23:14:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a5a4553ce1935d1a5da985624648925f SHA-1: 8ea04fc7a4a115815da789595dfabb377c4c0d15 SHA-256: d47a94295b607ea7db43da22b259e4d9343c34d5cd86ec0dc2ba9ba08dfdd2b5
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised with the text 'Jogos para ppsspp android'. This suggests a phishing or scam attempt to redirect the user to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the ability to determine further payload delivery or persistence mechanisms.

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.com/pify?keyword=jogos+para+ppsspp+android
    • http://files.scratchbuiltstudios.com/uploads/1/3/0/7/130739786/buxenekez.pdf
    • http://files.englishiskillingme.com/uploads/1/3/0/7/130775400/3881414.pdf
    • http://files.maid4uae.com/uploads/1/3/1/6/131607407/bebatut-zazog-jewatariji-nemif.pdf
    • https://cdn.shopify.com/s/files/1/0430/6999/7207/files/10030254739.pdf
    • https://cdn.shopify.com/s/files/1/0437/4963/8295/files/dejinaza.pdf
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/96254117029.pdf
    • https://cdn.shopify.com/s/files/1/0441/2545/4488/files/brief_calculus_and_its_applications_13th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/1537/9866/files/gewelizikusisoporisere.pdf
    • https://cdn.shopify.com/s/files/1/0437/5071/9642/files/jame_s_alliance_leveling_guide_vanilla.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/37220703010.pdf
    • https://cdn.shopify.com/s/files/1/0437/8466/7297/files/wopefosevejoxuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/tigivisu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2431/7607/files/feropononesofinegofitowo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2187/6900/files/41860728784.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bdf.bin
eec21715d4f0a4b3036dc549313accb73880571ba409ac090c55613665f9a3e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDF 4676 bytes
font_01_sfnt_off00007bb3.bin
71e695e0b81fc794ebbccb7da0253ef32639d255427436f83b56b0e53fad451a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB3 10416 bytes
font_02_sfnt_off00009f4e.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F4E 4324 bytes

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