Malicious PDF — malware analysis report

Static analysis result for SHA-256 c220c8a7d3a062d2…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 02:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ff5d7a0ce078406817c58357a4b00f7 SHA-1: 821aefb2b5d6e4afc157a3dc47b39d4504155ccb SHA-256: c220c8a7d3a062d2c7897273690d7bbfb0084645e972eb8520d1113bf62c11f3
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 of which point to Shopify domains, but one critical link directs 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 same URL, suggesting it's the primary lure. The presence of a malicious redirector indicates an attempt to deliver a secondary payload or lead the user to a phishing site.

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=goodness+of+god+bethel+chords+pdf
    • http://files.jamesdaviespoetry.com/uploads/1/3/0/7/130776776/1b20bb9d8603.pdf
    • http://files.mauipopwarner.com/uploads/1/3/2/6/132695365/lotitim.pdf
    • http://files.childabuseintheclassroom.com/uploads/1/3/0/8/130874332/d9b17ef7cf4c.pdf
    • https://cdn.shopify.com/s/files/1/0434/4479/7600/files/66518271638.pdf
    • https://cdn.shopify.com/s/files/1/0437/3538/4215/files/oc_caste_list_in_tamilnadu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3672/files/revenge_minecraft_parody_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0436/9691/4600/files/674797650.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/16989286172.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/82969509682.pdf
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/best_launch_options_for_csgo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5730/8063/files/favidukus.pdf
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/32153615295.pdf
    • https://cdn.shopify.com/s/files/1/0431/8108/0738/files/nameramokojuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/83296617029.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_off00005f5a.bin
e1896a74e8f78b88f23462cdf8bab14015b0b7e9b762af649bf2e14363eb916f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5A 5380 bytes
font_01_sfnt_off0000719f.bin
072a55b2e23ea71ed6f255001b99e71e038e896087bdaac16d3c65a51f8696a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x719F 14940 bytes

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