PDF malware analysis — malicious · c6e5de6800031503

MALICIOUS

PDF

33.9 KB Created: 2020-08-10 02:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 95b656cb19ab831c95aad6a5442bf5aa SHA-1: 7b56fc650e6cd8b651692d934fc703b065533e5f SHA-256: c6e5de680003150312b0ac1a183a41b58d3c759903cc4937e7328e4825999670

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary URLs, 'https://ttraff.ru/pify?keyword=assembler+pdf+et+jpg', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links pointing to Shopify domains, suggesting a coordinated effort to distribute malicious content through a link farm. No scripts were extracted, but the PDF structure itself is the delivery mechanism.

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=assembler+pdf+et+jpg
- http://mijar.stfranciscentre.net/uploads/1/3/0/8/130814328/bozixabos_rofufojasipu.pdf
- http://files.benbraaksma.com/uploads/1/3/1/8/131872199/letibisowo.pdf
- http://files.makealbertagreatagain.shop/uploads/1/3/0/8/130873826/jimimu.pdf
- http://files.fritzstudiofw.com/uploads/1/3/2/7/132740412/6341846.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdf
- https://cdn.shopify.com/s/files/1/0428/7630/5564/files/ramamesidimelawigijupomu.pdf
- https://cdn.shopify.com/s/files/1/0434/5911/7206/files/python_only_show_2_decimals.pdf
- https://cdn.shopify.com/s/files/1/0441/1149/5320/files/anti_hero_characteristics.pdf
- https://cdn.shopify.com/s/files/1/0430/7494/5184/files/3872918083.pdf
- https://cdn.shopify.com/s/files/1/0437/6995/4453/files/41559786803.pdf
- https://cdn.shopify.com/s/files/1/0427/8566/9279/files/nesenorogukafa.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zawitowawipujeko.pdf
- https://cdn.shopify.com/s/files/1/0431/4536/3616/files/xatiwaledova.pdf
- https://cdn.shopify.com/s/files/1/0432/0044/6626/files/8980168386.pdf
- https://cdn.shopify.com/s/files/1/0432/0801/6027/files/veletar.pdf
- https://cdn.shopify.com/s/files/1/0440/0922/6398/files/danuno.pdf
- https://cdn.shopify.com/s/files/1/0432/2279/4395/files/sixipoziwijo.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_off00004741.bin` `7a0ab32c3a2186ed6e8ee3649794b8576b0e760069de28748bb092da7cea90fd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4741	5356 bytes
`font_01_sfnt_off00005964.bin` `a9ccdd885ab2dbb71e52ef92651526e508f29b5ea32c1f20d6925d569b041c79`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5964	9804 bytes

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