PDF malware analysis — malicious · 94a3839727ade0a4

MALICIOUS

PDF

32.4 KB Created: 2020-09-10 14:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 03775b1cfcec5329730533a92195fad7 SHA-1: 672edcc7a9e4c6b723eb61de023937fed70e2147 SHA-256: 94a3839727ade0a436e6f9286c7e359ec5b2ab952ed75b25cde8f5c1eb962427

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=easa+aerodrome+manual+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on 'static.usrfiles.com'. The document body, though partially corrupted, contains text related to 'Easa aerodrome manual template' and the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of malicious links and the link farm technique strongly indicate a phishing or redirection attack.

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/wix?keyword=easa+aerodrome+manual+template
- http://files.annikascaketutorials.com/uploads/1/3/0/8/130815277/e39fd9fd.pdf
- http://files.djdiph.com/uploads/1/3/1/8/131871586/2458467.pdf
- http://files.corrinartwork.com/uploads/1/3/2/6/132696558/raxirakenofixewita.pdf
- http://files.tfortwoinvitations.com/uploads/1/3/1/3/131382955/2330520.pdf
- https://static.usrfiles.com/ugd/3be3a7_5771a30cfb5e4baaa407f7f8e4eb07d4.pdf
- https://static.usrfiles.com/ugd/4117a9_661a0c0b925a48e38fcbda90e6c80ecc.pdf
- https://static.usrfiles.com/ugd/ba2c19_e6e2fc9805c44cd2b8772837b049a63e.pdf
- https://static.usrfiles.com/ugd/f967ac_48208ae0077f4941b4333035d0617cbd.pdf
- https://static.usrfiles.com/ugd/52b593_4be290cb431845d6993bc439d6360488.pdf
- https://static.usrfiles.com/ugd/ee9d3f_6ff63f0febc048dfbfede7317fa3100a.pdf
- https://static.usrfiles.com/ugd/895bef_d11eba5e1537448988f56d84bba69f66.pdf
- https://static.usrfiles.com/ugd/48d9a1_0433dff77c56409689784108c0eba861.pdf
- https://cdn.shopify.com/s/files/1/0468/1000/5658/files/gagosofanemikurij.pdf
- https://cdn.shopify.com/s/files/1/0440/4399/3238/files/jabariya_jodi_full_movie_720p_hd.pdf
- https://cdn.shopify.com/s/files/1/0437/8935/3118/files/jutixofojobib.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_off00004458.bin` `3e133d008b14f8554f0c3ec514e9cb461832cbfc1842a14d88e6090e2ce303e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4458	5060 bytes
`font_01_sfnt_off00005576.bin` `6065258effb56902f9b7244457bc0f555fdcc1f65601f44b30dff13c7702a851`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5576	9284 bytes

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