Malicious PDF — malware analysis report

Static analysis result for SHA-256 497e1ccd63e7d40f…

MALICIOUS

PDF

54.2 KB Created: 2020-08-25 17:15:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2ea96d6b6004768fd4eb34488e6d379 SHA-1: 2fa0658a9b826395468af33fd247db682bc8ea35 SHA-256: 497e1ccd63e7d40f889aecd3d6b191eb0025a2f4ff1a34470d2f81abdd0eac8b
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. The document body also contains a call-to-action phrase, suggesting a lure to trick the user into clicking the link. The PDF also hosts a large number of external PDF links, many of which point to Shopify domains, likely as part of a link farm to improve SEO for malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=funny+logic+questions+with+answers+in+malayalam
    • http://files.hollenbackpianostudio.com/uploads/1/3/1/3/131383838/borevejile-nudomif-pijowosobap-xupogiko.pdf
    • http://files.thomasjamesolearydirector.com/uploads/1/3/1/3/131380495/1649061.pdf
    • http://sasufo.helpurchild.net/uploads/1/3/1/6/131606271/gufoxufu_romugiv_tizitazejodup_fokoxaso.pdf
    • http://vupaxefed.legacyministries.info/uploads/1/3/1/4/131483245/7674.pdf
    • http://files.tekamahfireandrescue.org/uploads/1/3/2/6/132695546/kuzijej-dafesej-vijawikubapep.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/sepitonebagitesakoxeluta.pdf
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/macbook_github_boot_to_a_usb.pdf
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/90527342848.pdf
    • https://cdn.shopify.com/s/files/1/0439/6879/0686/files/sufotuladej.pdf
    • https://cdn.shopify.com/s/files/1/0434/7183/1193/files/xifimuzesum.pdf
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/atmosfearfx_zombie_invasion_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/3048/4904/files/pefiwexajeves.pdf
    • https://cdn.shopify.com/s/files/1/0440/0149/3142/files/12139125184.pdf
    • https://cdn.shopify.com/s/files/1/0437/5638/8506/files/anthony_mathematics_for_economics_and_finance.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_off00006f04.bin
0798cc68a5a3b619020b4cf7f2b272731cdaaa7fa4633026a2e60866196772c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F04 5488 bytes
font_01_sfnt_off00008195.bin
96a3d7ca962a72313f24dafc61d8e046f776b0c5b9791905d27cfedeca5d4b15
pdf-font-stream PDF embedded font (sfnt) at offset 0x8195 11716 bytes
font_02_sfnt_off0000a76e.bin
31b8831512b3e5d4d0cdf4aab001df108d7c0709e4454aa46577d73ae77f40f5
pdf-font-stream PDF embedded font (sfnt) at offset 0xA76E 10552 bytes