PDF malware analysis — malicious · d4e164efde74f0f8

MALICIOUS

PDF

44.4 KB Created: 2020-07-30 10:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 875b397006f0bbd5400277241c3c53e9 SHA-1: 7b6e44989dc59030b9940f1b243686e225646f3b SHA-256: d4e164efde74f0f85d63bd15ef2eac65fa102d3ae764286de6849f4316e81044

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.ru/pify?keyword=makerere+university+cut+off+points+2020+pdf', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'Makerere university cut off points 2020 pdf', reinforcing the lure. The primary attack pattern involves using a seemingly relevant document to trick users into clicking malicious links.

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.ru/pify?keyword=makerere+university+cut+off+points+2020+pdf
- http://files.hotdishmagazine.com/uploads/1/3/2/6/132682142/nevaxadekezalirubud.pdf
- http://files.dackor.com/uploads/1/3/1/4/131407036/depitesemip-zaluluweziki-numowomabupezo.pdf
- http://files.greenideasdurham.co.uk/uploads/1/3/1/4/131452811/0e40b747.pdf
- http://files.schroederarch.com/uploads/1/3/0/9/130969855/difok_juloxisawutej_weminakag.pdf
- http://files.greenideasdurha
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/16295909707.pdf
- https://cdn.shopify.com/s/files/1/0431/2154/1274/files/nebolumeza.pdf
- https://cdn.shopify.com/s/files/1/0432/1135/8372/files/vowawuvumejabutewamotut.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nozawilod.pdf
- https://cdn.shopify.com/s/files/1/0432/9344/2208/files/74242317369.pdf
- https://cdn.shopify.com/s/files/1/0428/7945/1295/files/wapofevosavufazukevogaw.pdf
- https://cdn.shopify.com/s/files/1/0432/2338/4219/files/vikudasu.pdf
- https://cdn.shopify.com/s/files/1/0437/3417/1800/files/73361431090.pdf
- https://cdn.shopify.com/s/files/1/0432/1830/5179/files/48553944431.pdf
- https://cdn.shopify.com/s/files/1/0431/5247/4280/files/jazametamazusagejabivip.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21884581804.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_off00006ed4.bin` `c523262f7e2f0b32a5b2360c8cacc9ef467f3d4e29111370868b2ee82b14fb26`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6ED4	5504 bytes
`font_01_sfnt_off000081b0.bin` `e0b3f1075f90a1f806c176365ca2080b0bb0ad5c2113731064c9a08c3acf41c8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81B0	10104 bytes

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