Malicious PDF — malware analysis report

Static analysis result for SHA-256 88f38073c151e6c3…

MALICIOUS

PDF

41.8 KB Created: 2020-03-26 02:45:39 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5377f3918f25c5d439b82f7472957b2a SHA-1: 978b9d9774ca39e7288981e1de03da8c1431c297 SHA-256: 88f38073c151e6c3d928a04182768e4e56dc925d80a862485d8e73ffa26912fd
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted across numerous domains. This behavior is indicative of a link farm or a distribution mechanism for potentially malicious content. The document body contains a title related to coloring pages, which may serve as a lure. No scripts were extracted from this sample, but the extensive use of external links suggests a primary function of redirecting users to other resources.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://biomaxresearch.net/uploads/1/3/0/7/130739742/130739742.html#imagen+del+oso+panda+para+colorear
    • http://dancewithqi.com/uploads/1/3/0/6/130605331/3539352.pdf
    • http://pinktopia.org/uploads/1/3/0/6/130621187/24d1b295b3.pdf
    • http://al7erak247.com/uploads/1/3/0/5/130547405/320beebb.pdf
    • http://www.vakantie.folderplaats.nl/uploads/1/3/0/3/130323997/ligutadiv-gexefesuzisi.pdf
    • http://thelordswriter.com/uploads/1/3/0/2/130287506/lesurerituzukul_mipifowunawuta.pdf
    • http://ns2.creativeresourcesinc.net/uploads/1/3/0/2/130288320/bbfad6685bbb.pdf
    • http://mostlyaboutmoney.com/uploads/1/3/0/7/130738765/513470f7ea.pdf
    • http://www.spotlfy-subscription-confirmation.com/uploads/1/3/0/7/130775265/5ef2d379a1.pdf
    • http://dumarsinc.com/uploads/1/3/0/5/130545241/6e37f.pdf
    • http://adrienneodell.com/uploads/1/3/0/7/130739934/ec7011c1595.pdf
    • http://powershotsus.com/uploads/1/3/0/5/130550857/moxiwowipafe.pdf
    • http://www.versatilepumpsandfabrication.com/uploads/1/3/0/2/130287977/2e55082652.pdf
    • http://jamesshop.net/uploads/1/3/0/4/130436050/9de6cb72.pdf
    • http://mentok.net/uploads/1/3/0/7/130775014/3677864.pdf
    • http://niagarawellbeing.org/uploads/1/3/0/5/130539267/xerogubikuwejun-jaxuz.pdf
    • http://artbookblog.org/uploads/1/3/0/7/130739782/vogek-mudop.pdf
    • http://rvrepairaustin.com/uploads/1/3/0/2/130289651/livefujizo.pdf
    • http://mta-sts.led-ombouwset.nl/uploads/1/3/0/4/130489418/bofaj-gebimedolugetut-kegez-dujela.pdf
    • http://mitchellgribbroek.com/uploads/1/3/0/6/130621765/lisagomo.pdf
    • http://healthypleasuremx.com/uploads/1/3/0/6/130603944/6289148.pdf
    • http://shop.lonestarwildernessmedicaltraining.com/uploads/1/3/0/4/130493389/3c431973fe54835.pdf
    • http://mykindoffamily.com/uploads/1/3/0/2/130272384/zasipafof.pdf
    • http://revivemobiledevicerepair.com/uploads/1/3/0/9/130969222/2342020.pdf
    • http://74-123-75-107.mgwnet.com/uploads/1/3/0/4/130478648/waxuxis.pdf
    • http://kredihold.com/uploads/1/3/0/8/130874120/8447672.pdf
    • http://74-123-75-107.mgwnet.com
    • 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_off00006fe6.bin
680ea6f14778a2914e6258374ff84292c8c44eafc9b62a746d19378c51f59df6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE6 8432 bytes
font_01_sfnt_off00008eb4.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB4 1708 bytes