PDF malware analysis — malicious · b12d7d2a8855fd04

MALICIOUS

PDF

41.7 KB Created: 2020-08-13 21:52:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b0b697f5e779858465dda0243fe50a7d SHA-1: 782351d85dfd4e380eec2a8648be51c82080a0ea SHA-256: b12d7d2a8855fd04cd7ac185332d275b7209a44d328ea7fb036613963a27f612

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=excel+sheet+template+for+project+management`. This URL is designed to lure users by appearing to offer a useful template, but it redirects to malicious infrastructure. The document body also contains this URL and numerous other links, many of which point to domains that host PDF files, suggesting a link farm or SEO poisoning attempt to improve search engine ranking for malicious content.

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=excel+sheet+template+for+project+management
- http://biwagiz.conflictchange.com/uploads/1/3/2/8/132814930/mutid_zebarobefoki.pdf
- http://gefap.hpotx.org/uploads/1/3/1/3/131398091/pufalod.pdf
- http://futik.reptilefactorysocal.com/uploads/1/3/1/0/131070450/pejepozugozinuz.pdf
- http://files.yesandventure.com/uploads/1/3/1/6/131637881/2987716.pdf
- http://files.1stgengenealogy.com/uploads/1/3/2/7/132741348/5797621.pdf
- https://cdn.shopify.com/s/files/1/0431/9100/9442/files/mario_vargas_llosa_books.pdf
- https://cdn.shopify.com/s/files/1/0427/8062/3015/files/security_risk_assessment.pdf
- https://cdn.shopify.com/s/files/1/0437/0222/3013/files/marketing_assistant_cv.pdf
- https://cdn.shopify.com/s/files/1/0443/2812/4572/files/11959103493.pdf
- https://cdn.shopify.com/s/files/1/0428/1637/2892/files/zabebuwigaxowigaxer.pdf
- https://cdn.shopify.com/s/files/1/0432/2027/1272/files/ocps_school_calendar_2016.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdf
- https://cdn.shopify.com/s/files/1/0428/8954/3836/files/kemujen.pdf
- https://cdn.shopify.com/s/files/1/0432/0487/0305/files/wuroma.pdf
- https://cdn.shopify.com/s/files/1/0433/0595/9574/files/31865609227.pdf
- https://cdn.shopify.com/s/files/1/0430/3667/2162/files/kukenepadobelegud.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000637b.bin` `7eb81da3d4a421da8cd5a12075d140318a76e977e459ad58672c6a0c8dc9fe22`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x637B	5532 bytes
`font_01_sfnt_off00007633.bin` `2ac493fe03ab4a031bc712a430bf7cab50f1ec4233e72b486407da0f74dbaf95`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7633	10380 bytes

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