PDF malware analysis — malicious · 21cdfdd5530422ae

MALICIOUS

PDF

44.1 KB Created: 2020-08-01 16:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 872ba3d09be72ab64f1a460dfa52c285 SHA-1: 9ebdf86b79665ef7f085c194b8b558c528c6dedf SHA-256: 21cdfdd5530422ae00e1db20d1ed96cf5bb4fd210ae21f95471cb559e21e2393

140 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=attitude+seed+bank', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify URLs, suggesting a lure to external content. The presence of a callback lure heuristic further supports a phishing or scam-related intent.

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
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=attitude+seed+bank
- http://files.udiginc.com/uploads/1/3/1/0/131070342/58208.pdf
- http://files.sidemocrats.com/uploads/1/3/1/4/131408117/rifefeposokaj.pdf
- http://files.kununurraneighbourhoodhouse.org/uploads/1/3/2/7/132740193/wajegomadazapam_digomapudidag.pdf
- https://cdn.shopify.com/s/files/1/0431/4005/5208/files/93329422220.pdf
- https://cdn.shopify.com/s/files/1/0434/7179/8424/files/gimomivuzadijukepamek.pdf
- https://cdn.shopify.com/s/files/1/0436/3298/4222/files/44635155457.pdf
- https://cdn.shopify.com/s/files/1/0440/5864/0534/files/70958926313.pdf
- https://cdn.shopify.com/s/files/1/0435/1993/4628/files/60878307409.pdf
- https://cdn.shopify.com/s/files/1/0430/4489/6925/files/nadaradupuw.pdf
- https://cdn.shopify.com/s/files/1/0434/5790/4792/files/xitonarumajo.pdf
- https://cdn.shopify.com/s/files/1/0434/8706/8322/files/birabilorabudifozaja.pdf
- https://cdn.shopify.com/s/files/1/0431/1112/1057/files/gejibejijejixosivetiwum.pdf
- https://cdn.shopify.com/s/files/1/0429/9322/1783/files/bebiwipudikiluguja.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000062b2.bin` `682b7fae2bcf4b0ddcfc95a6b59763385f257949c70ccb417f7125ecf4636de9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62B2	4656 bytes
`font_01_sfnt_off00007284.bin` `30ed40965cfb5bb71b184055cb3233fcab904374456a9bb8ffe73fff17238f4b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7284	10448 bytes
`font_02_sfnt_off00009634.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9634	4324 bytes

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