Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a536bc01e4f8c4…

MALICIOUS

PDF

61.4 KB Created: 2020-08-06 13:15:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8371bc72dfdd918d1bab6657b2a84675 SHA-1: 47a826c1f8c1c8434a365e7ad6b8823ff1abf01d SHA-256: 47a536bc01e4f8c4d974ee014f69520ba779163a0487f05f1943ed7ce0d7f7eb
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. This redirector is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=amtrak+hiawatha+schedule+pdf', suggesting a lure related to Amtrak schedules. The presence of a link farm heuristic further indicates an attempt to manipulate search engine results or distribute malicious content broadly.

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=amtrak+hiawatha+schedule+pdf
    • http://files.murphyband.com/uploads/1/3/1/4/131483009/4811047.pdf
    • http://murewuve.umc-tec.org/uploads/1/3/0/7/130739553/40ed20.pdf
    • http://files.ariannasportfolio.com/uploads/1/3/1/3/131380845/sosumasuz.pdf
    • http://files.thomfogartypresents.com/uploads/1/3/0/7/130739786/481105.pdf
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/59540598666.pdf
    • https://cdn.shopify.com/s/files/1/0441/2411/1000/files/jenkins_email_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/8670/8893/files/52033570187.pdf
    • https://cdn.shopify.com/s/files/1/0437/1133/2503/files/16417226594.pdf
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/38048561777.pdf
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/putarinipuwatomegip.pdf
    • https://cdn.shopify.com/s/files/1/0431/6872/7194/files/icici_bank_full_details.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6817/files/mimejimavelakopigusatod.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdf
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/17469610454.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/rikoligozojiziro.pdf
    • https://cdn.shopify.com/s/files/1/0431/9445/0078/files/vowovegim.pdf
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/seniralapeviximadopalugul.pdf
    • https://cdn.shopify.com/s/files/1/0428/4183/3635/files/reduwaxefoxekaxiborab.pdf
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/43635139457.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_off0000a491.bin
c9207666f3d2c1a6d85b4a13a35514a6fae22d0dc54e9702f73eba374c01a163		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA491 5540 bytes
font_01_sfnt_off0000b74d.bin
56e5d79116d31f1f7b6e15d7fabf977db46f0a9a365b92a354ba5a51085f3258		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB74D 15160 bytes

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