Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccad9e17f1351107…

MALICIOUS

PDF

57.9 KB Created: 2020-08-08 22:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93153faf4df6d9f5049a231eb2dae196 SHA-1: ccb0ecad650057415831d67cdf9881678986a92a SHA-256: ccad9e17f1351107d554f9623bd3b62cd7a94a628330fac8c1111f8836242c78
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 pointing to external sites, which is indicative of a link farm or SEO poisoning attack. One critical heuristic identified a link to known malicious redirector infrastructure at ttraff.cc. The document body, though malformed, contains the title 'Enfoques de calidad de vida en el trabajo pdf', suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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=enfoques+de+calidad+de+vida+en+el+trabajo+pdf
    • http://files.corporatechilllout.com/uploads/1/3/1/3/131384636/kapebef.pdf
    • http://doxuw.contactshield.net/uploads/1/3/0/7/130739553/3577683.pdf
    • http://firuju.adrienmatray.com/uploads/1/3/1/4/131453177/35db1b126eb.pdf
    • http://files.nicholaspaulmccarty.com/uploads/1/3/0/7/130775192/wamijojul.pdf
    • http://files.internationalpsychologyandhealing.com/uploads/1/3/0/9/130969695/2e4063cfd30888b.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38608120386.pdf
    • https://cdn.shopify.com/s/files/1/0429/3502/5830/files/bulletproof_diet_infographic.pdf
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/tuwurigotizutafeju.pdf
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/19971081221.pdf
    • https://cdn.shopify.com/s/files/1/0437/1903/2987/files/2013_dodge_dart_fuse_box_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0431/1695/3751/files/january_2020_calendar_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8807/files/wudaxeporun.pdf
    • https://cdn.shopify.com/s/files/1/0429/1097/4111/files/xirawukojenaxunafawin.pdf
    • https://cdn.shopify.com/s/files/1/0438/1632/1184/files/sedobopotazesurefofamu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/75860000491.pdf
    • https://cdn.shopify.com/s/files/1/0429/0510/8636/files/pujujijesafoletem.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_off00009265.bin
7f6df0bc5d4eb9d8a117f6b723b7034d99da13e027479001d8fa0eb3f602de87
pdf-font-stream PDF embedded font (sfnt) at offset 0x9265 5388 bytes
font_01_sfnt_off0000a4ca.bin
a4b7a899f2a2286dc585aa7fdbd0827642f6fd80c9f73f1bc8a9e203a3e7fcca
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4CA 11844 bytes
font_02_sfnt_off0000ca62.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xCA62 4324 bytes