Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaf2081b59e07976…

MALICIOUS

PDF

40.8 KB Created: 2020-08-11 01:22:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70c2066571b8f784b40fde170175317d SHA-1: bd3c95d0b5d11a3b2398bcc8dc239d734829369b SHA-256: aaf2081b59e079760c64e7a1632ea5bbae7a391c9a125bb802147768b635869c
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'mcdonalds franchise operations manual pdf' and includes the malicious URL. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. The urgency lure heuristic further supports the phishing pretext.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=mcdonalds+franchise+operations+manual+pdf
    • http://files.caterpillarfoodplants.com/uploads/1/3/2/7/132710732/dirutagodes_dewisufowigen_toxif.pdf
    • http://files.irishdancinglosangeles.com/uploads/1/3/1/4/131437276/cf87878a9.pdf
    • http://files.accuratetax.org/uploads/1/3/0/7/130775137/e7f250071c.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/21208423690.pdf
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/janapudadumudozenekada.pdf
    • https://cdn.shopify.com/s/files/1/0440/5320/1046/files/florida_cdl_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/xorumutipisonutebip.pdf
    • https://cdn.shopify.com/s/files/1/0437/5488/1175/files/list_of_basketball_teams_nba.pdf
    • https://cdn.shopify.com/s/files/1/0430/0190/5315/files/simudobelodovowalo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4800/0922/files/xidodafobatur.pdf
    • https://cdn.shopify.com/s/files/1/0437/1631/3242/files/ralufalaga.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/xafabujodide.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/23144332256.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_off00005eb7.bin
ecad2bbffd3af0831bf923a677b5ed59e20ee99b9def9fc12095f299416ef0a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB7 5400 bytes
font_01_sfnt_off000070e7.bin
221bff373ec595a26c89c8a218f041c0195347a7f4de42e7eb81b5e185de2290		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E7 10936 bytes

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