Malicious PDF — malware analysis report

Static analysis result for SHA-256 dba22ee35de3f91c…

MALICIOUS

PDF

46.7 KB Created: 2020-08-15 02:21:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fba8e1cc3183a853caf8d5150959e683 SHA-1: 76e7b8a7880b885c30c0ba98ef74fa491a21bf82 SHA-256: dba22ee35de3f91c47e17e5656a45668526d3288d4e46fb64d091ea828c948a3
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. This indicates the document is likely a lure designed to redirect users to a malicious site for phishing or malware distribution. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=plano+brujas+belgica+pdf
    • http://files.energytouchintuition.com/uploads/1/3/0/7/130775917/09d5019f.pdf
    • http://files.essentialdance.co.uk/uploads/1/3/2/3/132302718/7217723.pdf
    • http://files.wilsonfarmmurfreesboro.com/uploads/1/3/1/0/131069978/xebis.pdf
    • http://files.maryelizabethbyrne.com/uploads/1/3/1/8/131872178/3cffd44ad4.pdf
    • http://figaso.warrenkaplan.com/uploads/1/3/0/8/130813765/5509672.pdf
    • https://cdn.shopify.com/s/files/1/0432/9163/9966/files/82847656428.pdf
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/vifugoleg.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7110/files/hitachi_cutting_tools_catalog.pdf
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/schwartz_absite_review.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/sinapogokazazisilozidopa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdf
    • https://cdn.shopify.com/s/files/1/0430/2703/8369/files/86047709174.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/89364655305.pdf
    • https://cdn.shopify.com/s/files/1/0429/2696/4903/files/complete_mage_3._5.pdf
    • https://cdn.shopify.com/s/files/1/0430/0419/9075/files/65877359361.pdf
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/mivufanigazilufozozob.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068d6.bin
a82f42bbfbc39597dbeeebd9ac661a890e470d59814058a29e18379e4585eb0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68D6 5340 bytes
font_01_sfnt_off00007aff.bin
386e7128bb5f6c3b21f22e3393e2f506c4efb31258001b883ff0411707e19987		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFF 10736 bytes
font_02_sfnt_off00009e26.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E26 4324 bytes

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