Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2f3fb4e9e03d3b…

MALICIOUS

PDF

42.7 KB Created: 2020-08-25 12:06:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff454408c2a02ac822e22405147e3d71 SHA-1: 38cd5e95c87c0937ffe997cfcea1e29b571c18d3 SHA-256: 1e2f3fb4e9e03d3b17c61d7c985619f58e294d9eedbb3d41d2e0ed495df64ea9
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=form+ar-+11+in+spanish. The document body, though heavily obfuscated, contains references to the same URL and other Shopify links, suggesting a coordinated effort to drive traffic to malicious infrastructure. The presence of a large number of external links points towards an SEO spam or phishing campaign.

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=form+ar-+11+in+spanish
    • http://files.teresamagana.com/uploads/1/3/0/7/130775918/jelon_vegomedujoxus.pdf
    • http://files.constitutiondaycentre.org/uploads/1/3/2/8/132814146/duwuxok.pdf
    • http://files.riversidetroutfishing.net/uploads/1/3/1/0/131070291/mosuluwipotimub-mogepefol-janiki.pdf
    • http://files.linkrenovations.com/uploads/1/3/2/6/132683330/zunel.pdf
    • http://lagudi.inspirednourishment.ca/uploads/1/3/0/8/130814868/3727019.pdf
    • https://cdn.shopify.com/s/files/1/0428/4776/4647/files/51144593266.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/jorapizodopiviba.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3462/files/kappler_level_a_suit_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/3266/4481/files/84992579311.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/cadillac_escalade_ext_2004_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/6367/0944/files/tenobiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/34018288485.pdf
    • https://cdn.shopify.com/s/files/1/0431/6479/5044/files/risaxodu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2683/1784/files/22620693482.pdf
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/86184024690.pdf
    • https://cdn.shopify.com/s/files/1/0437/6834/8830/files/jiteximupese.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_off0000699a.bin
0a15b1be8155e37554dbdbe4147f98c530a1bb8b0ab23a9a8899bda00c9f6469		 pdf-font-stream PDF embedded font (sfnt) at offset 0x699A 5068 bytes
font_01_sfnt_off00007ab1.bin
1575ab542c08bccbb250e7d366bbf210cde3a72c5363b8d6ee6da2c39dd7fcf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB1 10364 bytes

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