PDF malware analysis — malicious · ce4738368fd577a4

MALICIOUS

PDF

44.1 KB Created: 2020-08-14 13:41:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9904b49bf24679e9a2299c38f3071b0d SHA-1: c8b1a3c43a461f276151a434af2d3e4175db5169 SHA-256: ce4738368fd577a49accb5623b7bc4363b37b1e18da1ee4e957b8ddc3e32cb46

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains text related to 'student budget excel template free' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The presence of numerous PDF links and a malicious redirector indicates a phishing or scam attempt.

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.
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.ru/pify?keyword=student+budget+excel+template+free
- http://files.spsplusarchitects.com/uploads/1/3/1/4/131454523/fasulexawab.pdf
- http://kuzez.onemindspiritualservices.com/uploads/1/3/2/7/132741334/tasakabokodemo-bizusugeve.pdf
- http://files.hotstuffromance.com/uploads/1/3/0/7/130740242/8281790.pdf
- https://cdn.shopify.com/s/files/1/0430/6924/3553/files/savejobuxik.pdf
- https://cdn.shopify.com/s/files/1/0435/5080/2081/files/jekegisebop.pdf
- https://cdn.shopify.com/s/files/1/0428/5048/4390/files/the_f_factor_diet.pdf
- https://cdn.shopify.com/s/files/1/0437/3594/1274/files/zawojexuxepin.pdf
- https://cdn.shopify.com/s/files/1/0432/4635/4592/files/83230606053.pdf
- https://cdn.shopify.com/s/files/1/0437/4921/2309/files/kewonavina.pdf
- https://cdn.shopify.com/s/files/1/0431/8360/3876/files/nokememanekoruroviz.pdf
- https://cdn.shopify.com/s/files/1/0434/1966/4540/files/calculating_probability.pdf
- https://cdn.shopify.com/s/files/1/0434/4155/3575/files/xixudo.pdf
- https://cdn.shopify.com/s/files/1/0429/3738/5123/files/jaramagenefare.pdf
- https://cdn.shopify.com/s/files/1/0431/4628/1121/files/zetekobaki.pdf
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/31383030720.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_off00006e44.bin` `381cf27426fdfc023e6ffe18682b3de46921ecdd388b42538c9d38440348cf83`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E44	5608 bytes
`font_01_sfnt_off00008140.bin` `269d270f351de69161b858bfb16141ff50c5f0dee0b57405d511f1c4691fab91`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8140	10084 bytes

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