Malicious PDF — malware analysis report

Static analysis result for SHA-256 507a6f686d614f3a…

MALICIOUS

PDF

46.7 KB Created: 2020-08-17 17:20:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49074da42c8c25acaabc4c32aa5faa05 SHA-1: aa5d3413e1006254ae6cc98be6c43085b4bceefd SHA-256: 507a6f686d614f3adb3eab93199399e4ddc8e372d3ad9abcfc6d06a52ee6292e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=aaxa+projector+manual'. This URL is likely part of a phishing campaign designed to trick users into downloading further malware or visiting malicious sites. The document body, though heavily obfuscated, also contains the same URL and numerous other links hosted on Shopify, suggesting a link farm for SEO poisoning or to obscure the true malicious destination. The presence of a malicious redirector and the link farm structure strongly indicate a phishing or social engineering attack.

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=aaxa+projector+manual
    • http://files.voilasuespen.com/uploads/1/3/0/8/130873922/93b7d4fe1c.pdf
    • http://turav.littleheartrocks.com/uploads/1/3/0/7/130738970/xozarixisupobinev.pdf
    • https://cdn.shopify.com/s/files/1/0431/5768/4375/files/dunetowo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4066/0895/files/adobe_flash_player_android_10._2.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/iguana_tinker_tweaks_1._7._10.pdf
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/fudidovekefera.pdf
    • https://cdn.shopify.com/s/files/1/0428/5290/9212/files/aashto_roadside_design_guide_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdf
    • https://cdn.shopify.com/s/files/1/0449/9665/7320/files/69816853115.pdf
    • https://cdn.shopify.com/s/files/1/0432/8734/7360/files/korg_triton_le_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/74776844974.pdf
    • https://cdn.shopify.com/s/files/1/0432/2679/2098/files/71238548225.pdf
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/2032586168.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.

FilenameKindSourceSize
font_00_sfnt_off00006ede.bin
e715a3e4ccc01bb8328838a2af08ec7de83b085e388bea2be4440d0453fb30ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDE 5036 bytes
font_01_sfnt_off00007ff2.bin
b702a67c3d1ff49bf622e43a5639b8897837133ae40f6439d19c43f952b6b68b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF2 14820 bytes

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