PDF malware analysis — malicious · 3ecff0c63cd0f25c

MALICIOUS

PDF

43.6 KB Created: 2020-08-19 06:41:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 68946a591dc1b635eb12943c18f68de4 SHA-1: 7712497395ab14451643122467a6bc8a4829d360 SHA-256: 3ecff0c63cd0f25c63faa37716b671e486316d15621336bce099bbbdacc9f0ca

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to suspicious or unknown domains, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains keywords like 'whatsapp status sad video full hd' which appear to be used as lures to disguise the malicious intent of directing users to potentially harmful websites.

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=whatsapp+status+sad+video++full+hd
- http://files.veteransmusicfest.com/uploads/1/3/1/4/131438823/vuwitirezikan.pdf
- http://kunit.atmyfarm.com/uploads/1/3/1/6/131636648/maxilumevujabedut.pdf
- http://files.bulkbathandbodyproducts.com/uploads/1/3/1/4/131437223/1530165.pdf
- http://zapomi.travelerstateofmind.com/uploads/1/3/0/7/130739732/mosal.pdf
- http://files.meltinyourmouthcupcakes.com/uploads/1/3/1/3/131379396/926221886.pdf
- https://cdn.shopify.com/s/files/1/0439/9579/1518/files/how_to_make_tts_go_fast.pdf
- https://cdn.shopify.com/s/files/1/0435/8779/7160/files/delhi_university_south_campus_marksheet.pdf
- https://cdn.shopify.com/s/files/1/0431/1570/8573/files/46844755747.pdf
- https://cdn.shopify.com/s/files/1/0434/7333/8533/files/top_answers_in_an_interview.pdf
- https://cdn.shopify.com/s/files/1/0438/1478/1088/files/divorce_application_form_download.pdf
- https://cdn.shopify.com/s/files/1/0435/8579/8301/files/94179974089.pdf
- https://cdn.shopify.com/s/files/1/0436/1479/7981/files/67102644450.pdf
- https://cdn.shopify.com/s/files/1/0451/4581/7253/files/materiales_dentales_conocimientos_basicos_aplicados_gratis.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000046e0.bin` `fce573fbaeb1bef21a2670d119b03fd9f046f827519f8f63951b45a32f574e2d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x46E0	5108 bytes
`font_01_sfnt_off0000584b.bin` `8fd6fb7a7907dcd6a4fd1dc02cfadded5a3de21a5d8e0d98ca88928441dcd4cb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x584B	3484 bytes
`font_02_sfnt_off00006664.bin` `5677032b2376dc78a642d2981f399fc7ca39f435ecf5a3d2082dea3a82dfa0bc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6664	10340 bytes
`font_03_sfnt_off000089cc.bin` `620348a74bca1c1588a03aea768e1914a6654c89b08fb0c534c7d4dec2822fc9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89CC	16928 bytes

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