Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cf233f270020962…

MALICIOUS

PDF

53.3 KB Created: 2020-08-17 13:04:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ee1c53a6372e9919bae8847ab7ade1b SHA-1: 75cf03baf530d220acfdcd96c356946e405942ed SHA-256: 2cf233f2700209627e6bb10c0ba96d2e7da733d3bb7e18046c52b5c7acc29aac
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to `https://ttraff.cc/pify?keyword=a1294+transistor+datasheet`, which is likely intended to trick the user into downloading a payload or visiting a phishing site. The document also contains a large number of embedded links to Shopify, suggesting a link farm for SEO poisoning or to host multiple malicious documents.

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=a1294+transistor+datasheet
    • http://files.breadofnd.com/uploads/1/3/1/8/131857304/jevaromepujepa_vuravasoreneref.pdf
    • http://files.hardwoodholds.co.uk/uploads/1/3/1/3/131379591/gixafusigogabaju.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6202/files/girobubunujodu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/nunipexedukenowe.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/araba_oyunu_ykle_apk.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/12487409204.pdf
    • https://cdn.shopify.com/s/files/1/0437/6897/1418/files/mathe_brche_erweitern_und_krzen_bungen.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/gomoru.pdf
    • https://cdn.shopify.com/s/files/1/0437/5199/7592/files/vefefaguvitemoxedavasa.pdf
    • https://cdn.shopify.com/s/files/1/0428/8059/8172/files/navy_bluejacket_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/1428/1625/files/nccn_guidelines_thyroid_cancer.pdf
    • https://cdn.shopify.com/s/files/1/0434/0006/9283/files/mepinudinutelimapenoruli.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.

FilenameKindSourceSize
font_00_sfnt_off00006d35.bin
a2ac7d991d5c2ee9a2e8e99ba7a7646991fbe1f5259b2e244690a545511010ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D35 5296 bytes
font_01_sfnt_off00007f29.bin
f7d95f4c4c45c1bdc849063c0987d5aca152a5bb981c1c9c63c5e0b56e4cc96c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F29 16228 bytes
font_02_sfnt_off0000b175.bin
275d0ef8f619a30f75d5b67021c85ffe51dbf44d82a44ecb2d07128ff93f9399		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB175 16112 bytes

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