Malicious PDF — malware analysis report

Static analysis result for SHA-256 d616a2182fef2422…

MALICIOUS

PDF

53.4 KB Created: 2020-08-06 06:43:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4605b0569bb31bcef888c85800be996d SHA-1: 7ef25aacd1faadf7d3364f4150f02a51c1fc9cac SHA-256: d616a2182fef24227615fcff2ff28705bc57b4ab57f8f9f58e8134cb87d93081
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, containing numerous embedded URLs. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which likely serves as a gateway to further malicious content. The document body, though partially obfuscated, also contains this redirector URL, reinforcing its malicious intent. No scripts were extracted from this sample.

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=can+i+trust+the+bible+rc+sproul+pdf
    • http://files.redrootswrestlingclub.org/uploads/1/3/1/6/131606289/volefalimuxo.pdf
    • http://files.polemoorridingclub.com/uploads/1/3/1/6/131637402/naravudidixeles.pdf
    • http://files.northcoastoutfitters.com/uploads/1/3/1/4/131454190/b36c335d.pdf
    • http://files.jlongkandb.co.uk/uploads/1/3/1/6/131606368/da1337258866eff.pdf
    • http://files.tribetasrc.com/uploads/1/3/1/3/131398117/37dab24cd9d3ac9.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/nurojajagijanefajigixi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2027/1264/files/sulafuxoditopivi.pdf
    • https://cdn.shopify.com/s/files/1/0449/3859/2424/files/buna_seara_melania.pdf
    • https://cdn.shopify.com/s/files/1/0440/4235/4853/files/79838727029.pdf
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/panchatantra_short_stories_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/lidegaso.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/12870138569.pdf
    • https://cdn.shopify.com/s/files/1/0430/4768/2201/files/37672143500.pdf
    • https://cdn.shopify.com/s/files/1/0437/6782/4533/files/32691803972.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/tipepo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9054/2743/files/57195667681.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/minecraft_pe_0._14._0_apk_aptoide.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_off000093a7.bin
4c21bbad062da144cd73b3c22aa7b4061d25a0f8b01e41130431764b98586be7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93A7 5288 bytes
font_01_sfnt_off0000a591.bin
449baac74db8cbc461f6593c09c4872ca9ae5d5fa6938ba8a6ffc3e01082d389		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA591 10204 bytes

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