PDF malware analysis — malicious · 1f58c3bcd5fd4193

MALICIOUS

PDF

40.5 KB Created: 2020-08-04 07:06:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 68263c7ebe2fbb39394ce6fa2af31a2d SHA-1: f0147e67d047685c31e73d35d718a6871b81d7c1 SHA-256: 1f58c3bcd5fd41935b503f4609616a90e9977703d43b3af219720c0eab6e133c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=digesto+juridico+de+la+provincia+de+misiones+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though partially corrupted, contains the same malicious URL and references to 'wkhtmltopdf', suggesting it was generated programmatically to host these links. The primary intent appears to be redirecting users to malicious infrastructure.

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=digesto+juridico+de+la+provincia+de+misiones+pdf
- http://files.gleesonreboots.com/uploads/1/3/1/0/131070073/4599908.pdf
- http://files.coastalphotoclub.com/uploads/1/3/1/4/131455158/danumasexifamedizel.pdf
- http://turolen.hongkongsprings.com/uploads/1/3/0/8/130814575/fojalasezuvipud.pdf
- http://files.myscin.com/uploads/1/3/1/6/131606411/557061e9.pdf
- https://cdn.shopify.com/s/files/1/0432/5851/1510/files/geometric_series_proof.pdf
- https://cdn.shopify.com/s/files/1/0432/2872/5405/files/lipesinukegewokigiz.pdf
- https://cdn.shopify.com/s/files/1/0429/2775/1321/files/96800432271.pdf
- https://cdn.shopify.com/s/files/1/0435/2016/3999/files/subnautica_ion_battery.pdf
- https://cdn.shopify.com/s/files/1/0428/2449/9367/files/babowosikiteze.pdf
- https://cdn.shopify.com/s/files/1/0437/7110/1346/files/ruby_copy_file.pdf
- https://cdn.shopify.com/s/files/1/0433/6268/0984/files/45688484656.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdf
- https://cdn.shopify.com/s/files/1/0433/2794/6904/files/xedidafu.pdf
- https://cdn.shopify.com/s/files/1/0432/0067/6003/files/68540185620.pdf
- https://cdn.shopify.com/s/files/1/0433/3764/6245/files/sonoguligi.pdf
- https://cdn.shopify.com/s/files/1/0430/2602/2554/files/toreno.pdf
- https://cdn.shopify.com/s/files/1/0431/1865/7697/files/tejogijenamidufonexi.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_off00005b37.bin` `7219408ce7705d3b9070e63476164a43bd1a5c31db8e3d38b59d994817d34e0c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B37	5612 bytes
`font_01_sfnt_off00006e55.bin` `fa8cce4d7d5a86295908c0ffa62b1bd8bc4f607addc38a42a980fc3bb5801929`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E55	11440 bytes

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