Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6911890bff5d52b…

MALICIOUS

PDF

48.7 KB Created: 2020-07-30 19:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e7136f3cbd0902622c11b06309cf720 SHA-1: ef065d0ebbdd107dccc49a921353768160dd3714 SHA-256: d6911890bff5d52b5ed412b449552da835a68d84cc52e512b172941333f0506a
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one heuristic specifically identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to 'aleister crowley books pdf download', suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to host or chain to further malicious content.

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.ru/pify?keyword=aleister+crowley+books+pdf+download
    • http://files.peoplepaint.net/uploads/1/3/1/3/131379948/8651630.pdf
    • http://files.artisticawardsbyjoebourne.com/uploads/1/3/1/4/131483955/4729f4e4bbc80da.pdf
    • http://files.arabicwithnadia.com/uploads/1/3/1/4/131407549/5607946.pdf
    • http://files.unfilteredwithsteveheg.com/uploads/1/3/0/7/130775084/xibekowovixukom.pdf
    • http://files.unfilteredwithsteveheg.com/uploads/1/3/0/7/130775084/xibekowovix
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/90616245132.pdf
    • https://cdn.shopify.com/s/files/1/0429/3830/2627/files/44739312428.pdf
    • https://cdn.shopify.com/s/files/1/0433/2971/6374/files/kagitoba.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27392185694.pdf
    • https://cdn.shopify.com/s/files/1/0428/9432/7974/files/nomijegatariremo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2788/9308/files/kerizepevoxokepalaguzemez.pdf
    • https://cdn.shopify.com/s/files/1/0433/9944/6693/files/67882204069.pdf
    • https://cdn.shopify.com/s/files/1/0429/1071/1971/files/sesepozorabusele.pdf
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/44232234278.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/10970108534.pdf
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/57631876904.pdf
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/51558731279.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_off00007c6d.bin
2572b15e59b17c9944959f8bf38a22849f5aa7eee3d193426ef9318308039e6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6D 5324 bytes
font_01_sfnt_off00008e9c.bin
d9374ca64388c4622bd286de689a11e535078ef3c21324e2be379bc53e5dd3b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9C 12092 bytes

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