Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc1b13371e9bc4d…

MALICIOUS

PDF

40.6 KB Created: 2020-08-24 06:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5781868123ccf7ce881e55ef321f8111 SHA-1: c134ace39b6bd6d303b5d68bb0e541276061bbdb SHA-256: 3cc1b13371e9bc4d02d9592613a29830688deffd8363ab5205ff8acf6d08601b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'strategic air command march sheet music', suggesting a lure to trick users into clicking the malicious link.

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.cc/pify?keyword=strategic+air+command+march+sheet+music
    • http://winat.kellysserenityhouseinc.com/uploads/1/3/2/6/132680981/df7829f43.pdf
    • http://files.oregonstateinvestmentgroup.com/uploads/1/3/1/6/131636766/8304644.pdf
    • http://denogufep.thegonnermans.com/uploads/1/3/1/3/131383377/68ec7ebb313cdea.pdf
    • http://wojobu.threeoakwines.com/uploads/1/3/1/8/131872055/8637597.pdf
    • https://cdn.shopify.com/s/files/1/0433/2814/3510/files/vikaxotutire.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/matamabufixemujiriwikiji.pdf
    • https://cdn.shopify.com/s/files/1/0438/2310/4160/files/african_material_culture.pdf
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/essentials_of_investments_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0445/6205/5332/files/bsc_1_physics_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/wozivirapesorumewosamab.pdf
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/apple_watch_2_vs_3_performance.pdf
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/flirting_jokes.pdf
    • https://cdn.shopify.com/s/files/1/0430/2431/8618/files/16752403446.pdf
    • https://cdn.shopify.com/s/files/1/0437/2014/7095/files/11335821613.pdf
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/fejuzefuwa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/fefurusu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0239/4786/files/converting_inches_to_feet_worksheet.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_off000053ca.bin
dffc1c96dd4614722fcb06e31bc20a9a9aa5889e2dc742e65b00446c2f9504c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x53CA 3292 bytes
font_01_sfnt_off00005f9b.bin
9c0eeaf62274643b384ca996e33ca996175ff4f09311842a5b05de1b69381831
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9B 5424 bytes
font_02_sfnt_off000071cd.bin
cb1f0095822c64fa59ab7dec421a0321b04a7ac0ede5fd5a732c7d19069a4105
pdf-font-stream PDF embedded font (sfnt) at offset 0x71CD 10308 bytes