PDF malware analysis — malicious · a50549ce85851dd9

MALICIOUS

PDF

42.6 KB Created: 2020-08-25 15:19:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 83611fdeb4ee3b8fdb3af27273be7821 SHA-1: b256313a92dd568566ea3f261c9d2656fcdd8b55 SHA-256: a50549ce85851dd9046dd8811e1c2a230f1b7a81c1cd189bbe1a8805baf3d58a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file exhibits malicious behavior through a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic reveals a large number of embedded external links, suggesting an attempt to manipulate search engine results or create a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=atom+bomb+picture+ing, which is likely used to redirect users to further malicious content. The document body contains obfuscated text and references to the malicious URL and benign Shopify 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.cc/pify?keyword=atom+bomb+picture+ing
- http://jozazug.frostedblairwear.com/uploads/1/3/2/7/132712615/jofiremu.pdf
- http://files.perwangel.co.uk/uploads/1/3/0/7/130775977/sibomuliworip.pdf
- http://tamire.myhillchurch.com/uploads/1/3/2/7/132740763/vopewo-rebal-betuzolov.pdf
- http://files.bc-ipse.org/uploads/1/3/1/3/131381612/14d4dd9fcebb05.pdf
- http://files.xinchengqiu.com/uploads/1/3/2/6/132682142/2034277.pdf
- http://files.bc-ipse.org/uploads/1/3/1/3/131381612/14
- https://cdn.shopify.com/s/files/1/0432/0516/5216/files/79422244677.pdf
- https://cdn.shopify.com/s/files/1/0431/0895/8362/files/dosumojo.pdf
- https://cdn.shopify.com/s/files/1/0440/7705/6165/files/wuzuja.pdf
- https://cdn.shopify.com/s/files/1/0433/2797/9678/files/zidalefelodisekozutofo.pdf
- https://cdn.shopify.com/s/files/1/0432/8649/5400/files/jetiwulezudepotuworot.pdf
- https://cdn.shopify.com/s/files/1/0431/0715/6128/files/scope_and_sequence_template_music.pdf
- https://cdn.shopify.com/s/files/1/0437/6254/8887/files/lokmat_epaper_osmanabad.pdf
- https://cdn.shopify.com/s/files/1/0435/4637/8404/files/lexis_audio_editor_apk_mirror.pdf
- https://cdn.shopify.com/s/files/1/0436/9688/1814/files/gexafitetevuko.pdf
- https://cdn.shopify.com/s/files/1/0432/0369/0660/files/dekefewuwagagutuwubuda.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_off0000697d.bin` `021a80e909bae6d916eb2c7ddb5dbe3f3d3839c492d7f9bba2f180b1e801c1f1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x697D	4964 bytes
`font_01_sfnt_off00007a4d.bin` `be96b869197758028ab7542fc267ec02654a425e140a469f51854747be79c27c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A4D	10236 bytes

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