Malicious PDF — malware analysis report

Static analysis result for SHA-256 dadfc1b3d2ded81c…

MALICIOUS

PDF

54.2 KB Created: 2020-08-16 21:53:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a69ba43b29a26182f8d3e16f9fa8eef SHA-1: da806f94aeac45e7494150826e4c9e4c2d4785d7 SHA-256: dadfc1b3d2ded81cdf27a73cc1d31928d0a6b045e26b9894bcfd8afcfa63599c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=chaalbaaz+movie+mp4+free, is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to movie downloads, 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.ru/pify?keyword=chaalbaaz+movie+mp4+free
    • http://files.schramselfdefenseproducts.com/uploads/1/3/1/4/131407423/8688637.pdf
    • http://files.vergisdigitalmarketing.com/uploads/1/3/0/7/130776073/lafimegida-nanixurefemopi.pdf
    • http://files.artpedagogy.com/uploads/1/3/0/8/130813317/tosizagonasot.pdf
    • https://cdn.shopify.com/s/files/1/0437/7785/1550/files/ngx-_formly_custom_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/7211/7141/files/dedojolavidamepe.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/vemekuvivapuzod.pdf
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/sevaramamid.pdf
    • https://cdn.shopify.com/s/files/1/0430/5872/5015/files/25791352856.pdf
    • https://cdn.shopify.com/s/files/1/0436/1791/0944/files/98500800229.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.pdf
    • https://cdn.shopify.com/s/files/1/0433/2870/0571/files/vitazo.pdf
    • https://cdn.shopify.com/s/files/1/0440/6879/8614/files/renodibiwo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7396/1125/files/afrikaner_nationalism_essays.pdf
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/12895405761.pdf
    • https://cdn.shopify.com/s/files/1/0438/9673/3864/files/lebezirojegikapogipirod.pdf
    • https://cdn.shopify.com/s/files/1/0435/4228/2394/files/sahih_al_bukhari_arabic.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063b1.bin
778f5000ebfddb794072d5198258189712b74c79ac2e901f3700d226b6b23d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B1 5208 bytes
font_01_sfnt_off00007519.bin
d6c296583d5428cb7dea80cdea79a3442b870467aa84b677440e9c7aa3f3e5b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7519 6168 bytes
font_02_sfnt_off000083f5.bin
cdabb8bf9a7f0f87bd6837e12fe3e9b17e72f46d07f361d5538a1e54b160c1d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83F5 4332 bytes
font_03_sfnt_off000091d2.bin
e272715f7fa11c6be67cb607fcb045d1a5674adcabcf721b1274e0c0867d808d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91D2 10292 bytes
font_04_sfnt_off0000b51e.bin
8eb8d2050ebe2af0a645e689d001a4f14b650948be224ee0e48dd2ba5b01e61d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB51E 16480 bytes

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