Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf88dce15e639099…

MALICIOUS

PDF

41.0 KB Created: 2020-03-20 03:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 60f718685d5f4197421cb9f2a516554e SHA-1: c6c79a6b3b38d01d2b86d1cc37242f955c480704 SHA-256: cf88dce15e639099c6667b98506aa16767b634f9dd0a00183ab9582606cd9c29
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains references to these URLs. This suggests a link farm or SEO poisoning attack, where the primary goal is to drive traffic to numerous external sites, potentially for malicious purposes such as hosting further malware or phishing content. No scripts were extracted, and the document body did not contain explicit instructions, but the sheer volume of outbound links is highly suspicious.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://christchurchveins.com/uploads/1/3/1/0/131070598/131070598.html#plato%27s+symposium+love+summary
    • http://globaltechwomen.net/uploads/1/3/0/6/130604775/dajajose-bupopu-ligoxorexu.pdf
    • http://ygautos.com/uploads/1/3/0/3/130379485/kebudabavikiw.pdf
    • http://thefatfox.ca/uploads/1/3/0/7/130739693/xaros.pdf
    • http://getsocialfied.com/uploads/1/3/0/6/130605505/fepoledukafuralipu.pdf
    • http://www.mercebesso.com/uploads/1/3/0/6/130639865/jukegusi.pdf
    • http://notein-between.com/uploads/1/3/0/6/130621345/f298e4a.pdf
    • http://hawtdawgsleddingco.ca/uploads/1/3/0/3/130323588/xikukeniloworasuz.pdf
    • http://holacaffee.com/uploads/1/3/0/2/130287896/roxamabisux.pdf
    • http://carmarelpaso.com/uploads/1/3/0/2/130289774/piban.pdf
    • http://www.tomfernsfilms.co.uk/uploads/1/3/0/7/130738884/wojavijadepa.pdf
    • http://wrhslax.com/uploads/1/3/0/2/130288661/3440201.pdf
    • http://www.jewishspiritualbirthing.com/uploads/1/3/0/4/130489081/59715.pdf
    • http://calmministries.org/uploads/1/3/0/3/130323155/gijigidux-gituvoxuvipoket.pdf
    • http://casaservicesfinanciers.com/uploads/1/3/0/7/130738632/sotere-dibekizi-tepizakosekol.pdf
    • http://mrsdupreysclass.com/uploads/1/3/0/6/130621397/5225867.pdf
    • http://pittsburghyogaexpo.com/uploads/1/3/0/9/130969003/vogetajave_dibeberudemelo.pdf
    • http://ruthlessprogression.com/uploads/1/3/0/5/130550879/vitodub.pdf
    • http://test.ig-eng.org/uploads/1/3/0/4/130489128/bawipisuka.pdf
    • http://nutritionalbiochemistryresearchgroup.org/uploads/1/3/0/7/130740492/5465219.pdf
    • http://davidlopezjunior.com/uploads/1/3/0/5/130551625/lalekoxof.pdf
    • http://www.luscioushoney.com/uploads/1/3/0/5/130589431/a2fcce9f9f0.pdf
    • http://vikingbasketballcamp.com/uploads/1/3/0/2/130291523/b0537b58e859.pdf
    • http://www.deenastrategies.com/uploads/1/3/0/7/130776023/5031151.pdf
    • http://brossfamily.org/uploads/1/3/0/8/130874045/gemigewem_pujidebex.pdf
    • http://directofficefurnitureoutlet.com/uploads/1/3/0/7/130739893/2853989.pdf
    • http://brossfamily.org/uploads/1/3/0/8/130874045/gemigewem_puj
    • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007af5.bin
7d191de86e7633b46e1ec4ddb648e9c6576acd3e784b194e2abe548e0c1ca991		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF5 6800 bytes

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