PDF malware analysis — malicious · bf316ad53a65d42b

MALICIOUS

PDF

40.2 KB Created: 2020-08-08 12:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b42b3b55e036eb54baf1c8b59809c53f SHA-1: c0080701a389a0bb6136632eefa67d28470b7c0e SHA-256: bf316ad53a65d42b2090f76cbd963402334d524b6db66a13697b0fbd7beabe74

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a primary redirector identified at 'https://ttraff.com/pify?keyword=afcat+2+2020+pdf'. This suggests a phishing or scam attempt, leveraging the document's apparent relevance to 'Afcat 2 2020' to entice clicks. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, and the document body was largely unreadable, but the presence of a malicious redirector is a high-confidence indicator of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=afcat+2+2020+pdf
- http://files.hard2faze.com/uploads/1/3/1/0/131070859/ef988bf.pdf
- http://files.ahta.info/uploads/1/3/1/3/131381003/rekogin.pdf
- http://files.lsten.net/uploads/1/3/0/7/130775870/mugelosewunubupa.pdf
- https://cdn.shopify.com/s/files/1/0432/1778/0896/files/47416576023.pdf
- https://cdn.shopify.com/s/files/1/0449/5890/8584/files/chief_keef_albums_download.pdf
- https://cdn.shopify.com/s/files/1/0433/1234/9334/files/30019222646.pdf
- https://cdn.shopify.com/s/files/1/0435/1187/3688/files/dabepipavusalitox.pdf
- https://cdn.shopify.com/s/files/1/0430/7605/9290/files/53308621592.pdf
- https://cdn.shopify.com/s/files/1/0437/5891/1649/files/complete_key_for_schools_2020.pdf
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/39860336663.pdf
- https://cdn.shopify.com/s/files/1/0431/7279/0427/files/sarudelur.pdf
- https://cdn.shopify.com/s/files/1/0433/0225/6795/files/craftsman_lt_3000.pdf
- https://cdn.shopify.com/s/files/1/0431/3071/6314/files/pitch_class_set.pdf
- https://cdn.shopify.com/s/files/1/0440/7659/7400/files/43208257513.pdf
- https://cdn.shopify.com/s/files/1/0431/1128/4893/files/cambridge_o_level_english_language_past_exam_papers.pdf
- https://cdn.shopify.com/s/files/1/0432/6352/5029/files/leisure_bay_spas_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/3666/3208/files/95537100058.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_off00006066.bin` `b1e39266177b1bdeb4f2394227ac9bc7a119112ec0bf66472fce39239b3f328f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6066	5104 bytes
`font_01_sfnt_off000071e4.bin` `73846550c2a785d8e95658045b6a55af3ce7249b43a2d8809b740b6a2fbc6540`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71E4	10028 bytes

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