Malicious PDF — malware analysis report

Static analysis result for SHA-256 98892f8922ec62ca…

MALICIOUS

PDF

38.2 KB Created: 2020-10-09 17:12:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50f001bc221a74268f11966c04041896 SHA-1: 1d9ea35e3b638fd777a377dc6d31fb93e418b6a3 SHA-256: 98892f8922ec62caa7268ac2233dd3a5c23c3ff96d931287b66e5a49e1ef8f1a
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body contains garbled text but also includes the URL 'https://gettraff.ru/strik?keyword=scofield+reference+bible+pdf', suggesting a lure related to the Bible. The presence of numerous external links, including one to a malicious redirector, indicates a likely attempt to lead the user to malicious content or phishing sites.

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://gettraff.ru/strik?keyword=scofield+reference+bible+pdf
    • http://files.juabsheriff.org/uploads/1/3/0/7/130775603/zogewotezofif_zitiwawawigepu.pdf
    • http://files.suisekiphilippines.com/uploads/1/3/2/6/132681207/josuzosetu.pdf
    • http://files.daveclarkconsulting.com/uploads/1/3/0/8/130873715/duwovelurinenag_ruxezege_getopopepufo.pdf
    • http://mobik.relationalbalance.com/uploads/1/3/1/6/131636745/wodudexawemumubonoxa.pdf
    • http://files.millyverchar.com/uploads/1/3/2/8/132814958/784b6.pdf
    • http://files.tromakenerji.com/uploads/1/3/2/6/132683357/9f549.pdf
    • http://vorirez.idea-alice.com/uploads/1/3/1/8/131856491/tamukazetubusawikama.pdf
    • https://cdn.shopify.com/s/files/1/0485/6496/1445/files/budofewi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/muffin_song_roblox_id.pdf
    • https://uploads.strikinglycdn.com/files/d9a0934c-70ce-4c75-8852-e6041745790d/sajixinos.pdf
    • https://uploads.strikinglycdn.com/files/fe80acc2-f3d1-43ab-a1db-ecef2731206c/83418948819.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_off00005956.bin
6ccaf58d78b15dc99bb6b7387257a621c2c1e2da5a6a601010836308f831f61a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5956 5004 bytes
font_01_sfnt_off00006a68.bin
56816ecad838c8a452885b29ebac7f501866ac91a4feeef967eb2d3803577187		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A68 9976 bytes

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