PDF malware analysis — malicious · a5039c05e4b88a35

MALICIOUS

PDF

99.2 KB Created: 2020-08-05 02:06:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 91d3d6c4ecd19706fd0c7b3c07f5f02e SHA-1: 70828b8161a0c546ff471549feba725d21f58755 SHA-256: a5039c05e4b88a35e51e61bf79fc81b58fbe07f713151ebb435d40eefd6fdcd6

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to lure the user to click on a malicious link, likely for further exploitation or phishing.

Heuristics 4

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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=cosmic+ray+physics+pdf
- http://files.sarahmdenn.com/uploads/1/3/1/8/131856333/wiwutixepojofo-fewukunok-marigejigusute-vuvip.pdf
- http://files.thejoyfulpalette.com/uploads/1/3/1/3/131398091/f63658ca89c022.pdf
- http://files.alongsideautism.co.uk/uploads/1/3/1/0/131070367/5f50adc3b7.pdf
- https://cdn.shopify.com/s/files/1/0434/2064/7576/files/zolosiliderilezikufa.pdf
- https://cdn.shopify.com/s/files/1/0431/5840/5275/files/lapinonutarukitobukonir.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jonamov.pdf
- https://cdn.shopify.com/s/files/1/0433/9227/0494/files/mitch_hedberg_cause_of_death.pdf
- https://cdn.shopify.com/s/files/1/0432/2626/7816/files/gerowebewogazusejigevub.pdf
- https://cdn.shopify.com/s/files/1/0439/7550/8126/files/dowirotuvovafa.pdf
- https://cdn.shopify.com/s/files/1/0434/6488/4384/files/large_lava_lamp.pdf
- https://cdn.shopify.com/s/files/1/0435/3412/3160/files/59790661944.pdf
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/encapsulation_in_java.pdf
- https://cdn.shopify.com/s/files/1/0430/0426/4602/files/ableton_live_9.pdf
- https://cdn.shopify.com/s/files/1/0431/3510/7233/files/dafaminodavexaz.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49186839350.pdf
- https://cdn.shopify.com/s/files/1/0430/5797/1354/files/kosasukujogofuvosot.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_off00014554.bin` `066d5e957bbfd8456400f010a36306ce7a765743d499cf9cde5102bde34d4656`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14554	5368 bytes
`font_01_sfnt_off0001576e.bin` `9e7c16746c9b0e20dfa4199e44815fbcb611e320a40d838179b6c551ec55fcdc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1576E	11736 bytes

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