Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb74901b87152b8…

MALICIOUS

PDF

33.3 KB Created: 2020-08-17 16:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c6e6f1c7ba5a7d88f3ab55457bf703f SHA-1: 20b4b42f4880be09ccebccfdd5bba4d8b609dcb4 SHA-256: afb74901b87152b8e0588fbe458753f06b69bbb6e3d7b523be35bba352657951
128 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 critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final destination. The presence of a 'download button' heuristic further suggests a deceptive user interaction is intended. No scripts were extracted from this sample.

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.cc/pify?keyword=carry+on+jatta+2+songs++mp4
    • http://files.killingtonwinefestival.com/uploads/1/3/1/6/131636957/duwigineduxiwoneli.pdf
    • http://files.mandrcatering.com/uploads/1/3/2/3/132302970/guxesetenekopurawuro.pdf
    • http://files.gofish-lures.com/uploads/1/3/0/8/130873997/4632486.pdf
    • http://xobube.archieparnell4congress.com/uploads/1/3/0/7/130776644/josobufota.pdf
    • https://cdn.shopify.com/s/files/1/0431/9209/0788/files/teks_barzanji_marhaban.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/investments_10th_edition_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/boxokika.pdf
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/tomilopedubagositotisek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pigagijewunafusigiku.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bixebor.pdf
    • https://cdn.shopify.com/s/files/1/0436/9540/7269/files/29880683900.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/70902648051.pdf
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/bewezeger.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/38520775228.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000441a.bin
67972dd3a82ca7131b7654b5676a7e3da2a682a99713ea637bb0fefe460d1af3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x441A 5408 bytes
font_01_sfnt_off00005686.bin
0fb97cdf374d9ea7022d96a630c492c9afa21f98dc5c13b88d5bd07c380711a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5686 9948 bytes

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