Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7b97fa66a579e7b…

MALICIOUS

PDF

51.7 KB Created: 2020-09-03 00:01:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55deefaa3549876e56fafe47273fa97c SHA-1: af544e1ff3b6420842c494097a8a419b21ea43a7 SHA-256: a7b97fa66a579e7bad1ffb4c78021182968dfa0064c0901ea396d8f3d4854829
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to ttraff.com. The document body also contains the same URL, presented as a movie song lure. This indicates the primary goal is to redirect the user to a malicious site. The file also contains a large number of embedded links, many hosted on cdn.shopify.com, suggesting a link farm for SEO poisoning or traffic redirection.

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.com/wix?keyword=sultan+bangla+movie+song
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/xadive.pdf
    • https://cdn.shopify.com/s/files/1/0433/9345/0134/files/zasutokovamemisoxikasa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5574/2114/files/hallelujah_nuty_chomikuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6944/8096/files/bollywood_music_free_for_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0437/3089/4999/files/82320351993.pdf
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/54308614465.pdf
    • https://cdn.shopify.com/s/files/1/0431/9304/1059/files/98357741656.pdf
    • https://cdn.shopify.com/s/files/1/0457/6749/1750/files/36502021753.pdf
    • https://static.usrfiles.com/ugd/cc1a03_bce4c557a91247d4ba7652974cbf4f8b.pdf
    • https://static.usrfiles.com/ugd/2c7c49_84dd1da87be44665a457d4fa714b5421.pdf
    • https://static.usrfiles.com/ugd/1fbf8b_10c20212fa4f4e4ba4b4068869dc3389.pdf
    • https://static.usrfiles.com/ugd/ab0441_b5f34fba374042fa8fb71dbef2cd5edb.pdf
    • https://static.usrfiles.com/ugd/7041e4_e218f6db314c45638004bd5ee338d84a.pdf
    • https://static.usrfiles.com/ugd/062c90_5bd49397fffe45319776d4703af776e7.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_off00006419.bin
a7d0a2835d95b8d5244e9fe3a51bd2c261f9c2a9e72f51ae3f907c4fd613bf34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6419 5212 bytes
font_01_sfnt_off000075c8.bin
11eabdf0e16d53eb61e51df1d8d93fbace72863e7a11302024e3bba1762e319e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C8 9644 bytes
font_02_sfnt_off0000938e.bin
172b0e00e16aca49f2d38ac09ca3cadcbe4243c240522e2bbbac9c47859b0d3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x938E 14944 bytes

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