Malicious PDF — malware analysis report

Static analysis result for SHA-256 265e8031a6c48cc1…

MALICIOUS

PDF

49.8 KB Created: 2020-07-28 07:13:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43cb4df2e0a880a8e3a8edbd2103be5a SHA-1: 36c55b2b67ed34c312ddd1ac6eeadab27136ebca SHA-256: 265e8031a6c48cc141476617e63609e870027a7a1169e4ab8e753276454b3877
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a link farm. One of the primary links, ttraff.ru, is flagged as a malicious redirector. The document body is heavily obfuscated, but the presence of 'Android one x3 miracast' suggests a potential lure, possibly related to technology or device information, to entice clicks on the malicious links.

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=android+one+x3+miracast
    • http://files.wyaskwellness.com/uploads/1/3/1/4/131408432/c59f80.pdf
    • http://files.rtqhseconsultancy.com/uploads/1/3/1/6/131606202/1f298400e998e67.pdf
    • http://files.bowenbirthcollective.com/uploads/1/3/2/6/132681479/subafibitiruz.pdf
    • http://files.bowenb
    • https://cdn.shopify.com/s/files/1/0430/5358/0439/files/51822173151.pdf
    • https://cdn.shopify.com/s/files/1/0428/6713/0534/files/resaneseloniti.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53978683100.pdf
    • https://cdn.shopify.com/s/files/1/0429/9276/3039/files/rojigiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/58104110074.pdf
    • https://cdn.shopify.com/s/files/1/0432/2413/7890/files/38251754168.pdf
    • https://cdn.shopify.com/s/files/1/0435/2121/2570/files/lalisolojotutu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7386/2821/files/93087323286.pdf
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/97540853727.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/ganerazaposu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/52085017721.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/21857966236.pdf
    • https://cdn.shopify.com/s/files/1/0439/8238/9406/files/legenixavobape.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_off00007829.bin
f99bfca592de205955e7fc27d2b5672dd5fe7584053d915365baaaf11871b2f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7829 3592 bytes
font_01_sfnt_off000084ea.bin
6dd93a5738e600832b480305b5ce9c3f49180c6285838fba6b7b3a33c2dcdd31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84EA 5064 bytes
font_02_sfnt_off000095fc.bin
a89dde04d26d4af6c8365b29a6545a75a53fe9de53a7380215e69563cc340d92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95FC 10592 bytes

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