PDF malware analysis — malicious · 1dc01cb127a6a8ea

MALICIOUS

PDF

45.7 KB Created: 2020-08-03 23:26:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bcfd62ea2813c0eeb18c5addd518ca82 SHA-1: 5d0ef6a38153b3b070b3dde7b0661efee1eafcfa SHA-256: 1dc01cb127a6a8ea210ab3473d641dd7a40d38406bab6c634f705f0441145f63

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to mimic search results for academic papers, specifically 'Abnormal psychology ann kring pdf free download'. The primary embedded URL, https://ttraff.ru/pify?keyword=abnormal+psychology+ann+kring+pdf+free+download, is flagged as a malicious redirector. This suggests the document's purpose is to trick users into clicking the link, likely leading them to a malicious site or download. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=abnormal+psychology+ann+kring+pdf+free+download
- http://files.shoppalomaclothing.com/uploads/1/3/0/8/130814043/sivedaxupowe.pdf
- http://files.chertsey.school.nz/uploads/1/3/1/8/131856160/wojijepukol.pdf
- http://files.escapelandscaping.net/uploads/1/3/0/7/130775232/6283692.pdf
- http://files.pastorpraveenministries.org/uploads/1/3/1/4/131406749/968c3a2dc.pdf
- http://files.hairbylola.com/uploads/1/3/0/7/130738619/bejibuxoted-xuzidasinitute-subarimaz.pdf
- https://cdn.shopify.com/s/files/1/0430/7048/8730/files/sefitawujubon.pdf
- https://cdn.shopify.com/s/files/1/0432/5621/7750/files/86124222589.pdf
- https://cdn.shopify.com/s/files/1/0438/4279/7730/files/loving_what_is.pdf
- https://cdn.shopify.com/s/files/1/0432/6532/7262/files/tezunebubozazunorejageru.pdf
- https://cdn.shopify.com/s/files/1/0433/7975/3109/files/29155662456.pdf
- https://cdn.shopify.com/s/files/1/0433/9954/4984/files/40077257053.pdf
- https://cdn.shopify.com/s/files/1/0431/5214/6587/files/24820195205.pdf
- https://cdn.shopify.com/s/files/1/0428/2109/1484/files/97313932809.pdf
- https://cdn.shopify.com/s/files/1/0435/0610/6528/files/zisurimatu.pdf
- https://cdn.shopify.com/s/files/1/0439/6164/7262/files/60468579064.pdf
- https://cdn.shopify.com/s/files/1/0432/9239/3640/files/stihl_ms250_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/7027/5236/files/gifenijibemirifo.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_off0000694e.bin` `c418da568416ac559a3de14efcc4a793f618798701826a20f5a62be14c1e144d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x694E	5956 bytes
`font_01_sfnt_off00007d77.bin` `b258a829a3f4ec8484e74004733bca701e801908278235304b8d3f80c6acfa48`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D77	14264 bytes

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