PDF malware analysis — malicious · 34f08f856cea90eb

MALICIOUS

PDF

42.1 KB Created: 2020-08-23 11:05:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9b03a66a295e9b9fb6991b586bec2c1f SHA-1: a8e9d34760b64fc339105aaac8f9fea744377500 SHA-256: 34f08f856cea90eb2e9d0142fa62b67d658388ec8941b1e5b233b52ee4de72dd

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a prominent link with the text 'Cydia app for windows', which redirects to a malicious URL. This URL is part of a link farm, suggesting an attempt to drive traffic to malicious infrastructure. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the PDF structure and embedded links indicate a social engineering lure.

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.cc/pify?keyword=cydia+app++for+windows
- http://files.mystgeorgesrugby.com/uploads/1/3/1/3/131379846/39c1944510857.pdf
- http://files.tarajartist.com/uploads/1/3/1/4/131453645/5dcae0580f724f.pdf
- http://files.slsfnc.com/uploads/1/3/1/4/131408798/kulatel.pdf
- http://files.stjohnsmasoncity.org/uploads/1/3/2/7/132740377/9887d.pdf
- https://cdn.shopify.com/s/files/1/0435/8910/7869/files/65646007202.pdf
- https://cdn.shopify.com/s/files/1/0432/7548/5348/files/35978327852.pdf
- https://cdn.shopify.com/s/files/1/0432/9324/5590/files/65693569540.pdf
- https://cdn.shopify.com/s/files/1/0440/9055/6568/files/figalaxuxukowafibakija.pdf
- https://cdn.shopify.com/s/files/1/0433/2758/6457/files/pavlov_behaviorism_theory.pdf
- https://cdn.shopify.com/s/files/1/0460/6341/9547/files/ester_formation_from_carboxylic_acid_and_alcohol.pdf
- https://cdn.shopify.com/s/files/1/0439/4647/5678/files/guidecraft_kitchen_helper_target.pdf
- https://cdn.shopify.com/s/files/1/0431/6826/8456/files/51023576176.pdf
- https://cdn.shopify.com/s/files/1/0448/2557/5581/files/marketing_research_tools_and_techniques.pdf
- https://cdn.shopify.com/s/files/1/0428/9665/4489/files/joana_s_leveling_guide_alliance_free.pdf
- https://cdn.shopify.com/s/files/1/0429/2925/8649/files/diet_plan_for_fat_loss.pdf
- https://cdn.shopify.com/s/files/1/0437/2656/9633/files/famigetopomabemegaj.pdf
- https://cdn.shopify.com/s/files/1/0431/1760/9122/files/wikabebarawidarigaroda.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_off000067b4.bin` `df53743738799d9c8d7d4700681f6ef1e80d72df8b5376b6564bb19050b8df2c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67B4	5100 bytes
`font_01_sfnt_off00007937.bin` `977d8908512902a66885cb7d7d6e2914e44f714744bfbb917c62a71eea3eed59`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7937	9976 bytes

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