Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01a802a2672f727…

MALICIOUS

PDF

44.4 KB Created: 2020-08-22 23:52:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 471d7194866ce8284b845a87c17e1011 SHA-1: 0dffda38e070ad3a5be10d54b72aad9de20b9c08 SHA-256: c01a802a2672f7279c8f56153130e15f0e7e4ce5c68a9ef9bcbb72e9d0c32440
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Esquire magazine submissions guidelines', likely serving as a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, but the primary malicious intent appears to be redirection through the ttraff.com URL.

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.com/pify?keyword=esquire+magazine+submissions+guidelines
    • http://files.neuropsychologystl.com/uploads/1/3/1/8/131856646/fubutaz.pdf
    • http://files.brennaninstitute.org/uploads/1/3/1/4/131406086/jajigosotugaz_kolakesenipam_vorenanij_bekesebeli.pdf
    • http://gagazol.renoirpropertygroup.com/uploads/1/3/1/0/131070306/c6086e65562d6.pdf
    • http://files.josiemusicawards.com/uploads/1/3/1/4/131453934/63725d1d27.pdf
    • https://cdn.shopify.com/s/files/1/0431/0227/3697/files/lisijivodalumekunetunuvuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/jasofiwavowude.pdf
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/pamesekilu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7986/8309/files/vonepimomujolileluf.pdf
    • https://cdn.shopify.com/s/files/1/0452/3737/1037/files/environmental_toxicants.pdf
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/33953915614.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/34944557730.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/kisagit.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1549/files/80967804638.pdf
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/jarufogakeba.pdf
    • https://cdn.shopify.com/s/files/1/0438/7530/3592/files/migaref.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_off00006c9c.bin
5f086f1d657264bb0157cfbe14567d09d8ebdb2d0ed8e2404db4cce134c38c00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9C 5420 bytes
font_01_sfnt_off00007ee5.bin
25169d116b206b3bee95e6ad956da9572b170ee65d1d21e0c0f62b21cf972d8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE5 11040 bytes

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