PDF malware analysis — malicious · 1a019867b066bbc8

MALICIOUS

PDF

58.0 KB Created: 2020-08-06 01:49:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5bcbb748182b6b07b2e879ebb4799af5 SHA-1: 303c0ffe6597a7fa9fc64f9aac280715ee8d8654 SHA-256: 1a019867b066bbc83b6df1d5d53031ae0e09989011ac4f8efa77a5e06817e1e1

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.cc/pify?keyword=basic+probability+theory+pdf'. This suggests a phishing or scam attempt disguised as a legitimate document. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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.cc/pify?keyword=basic+probability+theory+pdf
- http://najor.johncesarguitar.com/uploads/1/3/1/0/131070161/pilupifibozanobazex.pdf
- http://files.artworkbyrenee.com/uploads/1/3/2/7/132740620/kixojiroje.pdf
- http://files.bendigounited.com/uploads/1/3/0/7/130739369/sixef.pdf
- http://files.onemoremiletraining.com/uploads/1/3/0/9/130969655/tetubejo-teguwa-xijosux-sizudixiwu.pdf
- http://files.artworkbyrenee.com/up
- https://cdn.shopify.com/s/files/1/0430/4617/4877/files/99366652033.pdf
- https://cdn.shopify.com/s/files/1/0433/5144/1563/files/lulepifawamapifekukobe.pdf
- https://cdn.shopify.com/s/files/1/0436/0280/4898/files/mevasogaxurado.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/balevogigadan.pdf
- https://cdn.shopify.com/s/files/1/0435/6043/5873/files/67892227874.pdf
- https://cdn.shopify.com/s/files/1/0432/5477/5970/files/sivuzin.pdf
- https://cdn.shopify.com/s/files/1/0431/5371/9452/files/sozonibajexafox.pdf
- https://cdn.shopify.com/s/files/1/0429/0982/7231/files/rumogoxesevifajubatidig.pdf
- https://cdn.shopify.com/s/files/1/0433/3250/1656/files/44169930453.pdf
- https://cdn.shopify.com/s/files/1/0434/0131/4454/files/19626340388.pdf
- https://cdn.shopify.com/s/files/1/0430/6645/8266/files/dotevafepumiki.pdf
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/pagowa.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_off00008d55.bin` `f894ee4cf5a1f1ad3534169cd6bc5decd92c5bb244ff08a84a93a3a468107d57`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D55	5532 bytes
`font_01_sfnt_off0000a01a.bin` `fa2fbcc61909b074d6df79fb4c0e718177f6bd69ad0726e3129956a18ec34780`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA01A	10692 bytes
`font_02_sfnt_off0000c4f6.bin` `3595ff85ffd319b6cfbd18f185c76d32efd97eef2cd63e4cee388b37a230341f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC4F6	16236 bytes

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