PDF malware analysis — malicious · 9a4c85eb1b02d72e

MALICIOUS

PDF

41.1 KB Created: 2020-08-04 06:56:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8963be0c8480f946e350d0ecc4e2f64d SHA-1: 32e51d9295ea970156b552b15ff3c3379348a24a SHA-256: 9a4c85eb1b02d72eeb24e0679d46acc96d5ccd3a2ecfa44a4a83751ca05ec72b

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bais+yaakov+cookbook+pdf'. Additionally, it exhibits a PDF SEO link farm behavior, with numerous external PDF links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a deliberate attempt to lure users to potentially malicious content. No scripts were extracted from this sample.

Heuristics 4

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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=bais+yaakov+cookbook+pdf
- http://files.drjoybozzo.com/uploads/1/3/1/3/131383294/2224778.pdf
- http://files.moveks.org/uploads/1/3/0/8/130874120/xogazakipagegi_bivexasa.pdf
- http://files.kipawa.org.uk/uploads/1/3/1/3/131379700/4638674.pdf
- http://files.rocoveryfitness.com/uploads/1/3/1/4/131437318/3615142.pdf
- http://files.sarahgoetzskincare.com/uploads/1/3/0/8/130874482/joxesijijaxuzi.pdf
- https://cdn.shopify.com/s/files/1/0429/2955/3575/files/giguvabe.pdf
- https://cdn.shopify.com/s/files/1/0440/1653/3654/files/tusil.pdf
- https://cdn.shopify.com/s/files/1/0430/3486/9921/files/veluseti.pdf
- https://cdn.shopify.com/s/files/1/0428/8764/3302/files/lisivopojudijuzukap.pdf
- https://cdn.shopify.com/s/files/1/0432/8154/7428/files/saturated_steam_temperature_table.pdf
- https://cdn.shopify.com/s/files/1/0428/4933/7507/files/11745732983.pdf
- https://cdn.shopify.com/s/files/1/0433/8014/6339/files/zepogazumaruberosokuz.pdf
- https://cdn.shopify.com/s/files/1/0428/6437/8022/files/52500685176.pdf
- https://cdn.shopify.com/s/files/1/0434/8539/7152/files/loluna.pdf
- https://cdn.shopify.com/s/files/1/0428/6716/3302/files/64488030930.pdf
- https://cdn.shopify.com/s/files/1/0438/4758/1856/files/63613160872.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_off00006093.bin` `3edb1743a4b55d24b0a7c658d1848b9534df2de7ea2312312669eccf7a20c0ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6093	5436 bytes
`font_01_sfnt_off00007335.bin` `329bb05bbc33a6c57a330c531422d2a682fb8da1874b353a58741aba20aab1c7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7335	10636 bytes

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