PDF malware analysis — malicious · 3e5f26c6abf8da6a

MALICIOUS

PDF

50.6 KB Created: 2020-08-24 15:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9dcf318844fd546a93102b79c6cb313b SHA-1: 6cf190a3b37419d866eb64cb6b2d8bc83bf77ccb SHA-256: 3e5f26c6abf8da6ab7211efe7ffdc6d32bd504ed5c4f4d65b280db6fbfffee99

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=acet+sample+papers+with+answers'. This suggests the document is designed to lure users into clicking the link, likely leading to a phishing page or malware download. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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=acet+sample+papers+with+answers
- http://files.heritagefairsns.ca/uploads/1/3/1/8/131857419/ef6ebcf7d5d55ae.pdf
- http://files.sile765.com/uploads/1/3/1/3/131379789/tuxebis.pdf
- http://files.goringgaphistory.org.uk/uploads/1/3/0/7/130775537/8aa2e0cc.pdf
- https://cdn.shopify.com/s/files/1/0429/8784/7843/files/62832306233.pdf
- https://cdn.shopify.com/s/files/1/0448/4520/3618/files/carbozinc_859.pdf
- https://cdn.shopify.com/s/files/1/0434/3519/6582/files/all_rounder_naa_songs.pdf
- https://cdn.shopify.com/s/files/1/0431/9461/3924/files/resistors_capacitors_inductors_diodes_transistors.pdf
- https://cdn.shopify.com/s/files/1/0431/3622/1341/files/83150032502.pdf
- https://cdn.shopify.com/s/files/1/0433/7506/7297/files/koresidukiparanesudipi.pdf
- https://cdn.shopify.com/s/files/1/0433/7224/9251/files/auxiliary_verbs_grammar.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005ad6.bin` `cee87cb83259af83faeebe7882a7c2523cdef9bacbcd61604ac2d474df0d6fd5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5AD6	5252 bytes
`font_01_sfnt_off00006c8e.bin` `d97e055e11de589539a249dfdf9c15aca1e9caf4700104d1763a3a5d87d8f7f2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C8E	2320 bytes
`font_02_sfnt_off000076e0.bin` `4a5d763e8c1fdecdf9c91f6f1c8731753067cae620a6520820cee11cc7ef3414`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76E0	10248 bytes
`font_03_sfnt_off000099f3.bin` `207faf14306426b668b87aba0c9d447b8ba40b67f0f7b18660ffa0d3c8132265`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99F3	16224 bytes
`font_04_sfnt_off0000af7b.bin` `398ac91bac7f758a70a93fa293afffacd0836300c82ea0730ceda10d5e08ada6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAF7B	3460 bytes

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