PDF malware analysis — malicious · b737244e3cfcd925

MALICIOUS

PDF

49.8 KB Created: 2020-08-01 18:16:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b473a416acec70f317f660ec92f2419f SHA-1: b797574e43b849a4ce096dcbab87820fa0e55ff7 SHA-256: b737244e3cfcd925b6ce060646cedfd1d8f862bc0caf7e55d9d903e7dbf830a4

148 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or to obscure malicious destinations. One critical heuristic indicates a link to a known malicious redirector, ttraff.com, which is likely the primary malicious payload delivery mechanism. The document body and heuristics also suggest a lure related to invoices or payments, and a callback phishing pretext, reinforcing the malicious intent.

Heuristics 5

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
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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=texas+surcharge+indigent
- http://files.forumartspace.com/uploads/1/3/0/7/130740213/tolanudapej_zuvojadadas_fepolumitijapi.pdf
- http://files.judelab.com/uploads/1/3/1/3/131380771/08912831c5.pdf
- http://files.originalsexyslave.com/uploads/1/3/0/9/130969004/ca2abe.pdf
- https://cdn.shopify.com/s/files/1/0430/3713/0914/files/karagodifugaj.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magizokoluredofet.pdf
- https://cdn.shopify.com/s/files/1/0431/4749/3536/files/73827878295.pdf
- https://cdn.shopify.com/s/files/1/0434/4525/6352/files/65649043818.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rixaraxamixenapo.pdf
- https://cdn.shopify.com/s/files/1/0431/9156/6493/files/79851997996.pdf
- https://cdn.shopify.com/s/files/1/0430/8670/8889/files/rariza.pdf
- https://cdn.shopify.com/s/files/1/0429/9004/3285/files/48377810752.pdf
- https://cdn.shopify.com/s/files/1/0433/4324/9563/files/72280849391.pdf
- https://cdn.shopify.com/s/files/1/0430/5354/7677/files/43550326424.pdf
- https://cdn.shopify.com/s/files/1/0431/3320/6689/files/muzunon.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_off000083a4.bin` `5e3f47e0d173924015c692855b4804528da6b390d5bdb5f0b8aaf60a167da3c2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83A4	5188 bytes
`font_01_sfnt_off00009543.bin` `ee5df27d3df1a87d6d1f438b9f0dc04ab8afc8202d5864edd5017038fc2b8ac0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9543	11172 bytes

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