PDF malware analysis — malicious · b2848e4f5a992289

MALICIOUS

PDF

65.1 KB Created: 2020-08-23 23:49:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 483f294ba080f6ce5b3e76e8199a4c23 SHA-1: 2e2c13a981019ba6141bcc0f2cbf83ea1e3e90ca SHA-256: b2848e4f5a9922892f245aa204b5dd25675763d59308cadbaaae7837e7d0f62e

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic firing indicates a malicious redirector link to 'ttraff.ru', which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=hungry+shark+world+mod+menu+apk', suggesting a lure related to game cheats or mods. The presence of multiple embedded PDFs and a malicious redirector strongly suggests a phishing or malware distribution attempt.

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.ru/pify?keyword=hungry+shark+world+mod+menu+apk
- http://files.drsootncinder.com/uploads/1/3/1/4/131437848/xipop.pdf
- https://cdn.shopify.com/s/files/1/0430/7258/5888/files/antonyms_meaning.pdf
- https://cdn.shopify.com/s/files/1/0434/6390/1334/files/netgear_d7000_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/1974/8006/files/42705865633.pdf
- https://cdn.shopify.com/s/files/1/0432/8433/2710/files/an_enthusiastic_gilled_blob.pdf
- https://cdn.shopify.com/s/files/1/0449/7879/8750/files/44900017589.pdf
- https://cdn.shopify.com/s/files/1/0437/2617/6407/files/the_best_wife_true_love_story_read_online.pdf
- https://cdn.shopify.com/s/files/1/0432/7417/4632/files/juduvunufikusafapizudosog.pdf
- https://cdn.shopify.com/s/files/1/0430/5852/8405/files/90726258249.pdf
- https://cdn.shopify.com/s/files/1/0450/2913/0404/files/bisugadevibiwerof.pdf
- https://cdn.shopify.com/s/files/1/0437/8161/9861/files/53038910636.pdf
- https://cdn.shopify.com/s/files/1/0429/6579/4965/files/character_development_chart.pdf
- https://cdn.shopify.com/s/files/1/0427/9028/9574/files/zamip.pdf
- https://cdn.shopify.com/s/files/1/0438/3450/7426/files/26701858072.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
`stream_005_off0000c514.bin` `d8a34d6d4d745854151e0c83ad09c9c9c435d9aed394e90ef27a8559138a8b82`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xC514	27264 bytes
`font_00_sfnt_off00007ff4.bin` `ce623d5483dcf7591eb4e75e68fe533963c989f1d6ad1a75a78c733250f1d3e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FF4	5592 bytes
`font_01_sfnt_off000092d8.bin` `b424a4275bffb7aecbeb068f61fe54007accaaaf7c284a05ab528b59d545f964`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92D8	16128 bytes

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