Malicious PDF — malware analysis report

Static analysis result for SHA-256 3398ddbb3b9e5ba7…

MALICIOUS

PDF

43.1 KB Created: 2020-08-24 16:51:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43ad16dab626c7767d4860f84665247e SHA-1: 858cd5ec3ffb1ae256f7b275912d817dc5104e7a SHA-256: 3398ddbb3b9e5ba7f95cce2cf6cde1072efa3dc478babaae94e2bb6ee30a5a24
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body also contains this URL, alongside numerous other links hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The primary malicious URL is likely used to redirect users to a second-stage payload or phishing page. No scripts were extracted from this sample.

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=animal+world+full+movie+2018
    • http://wujudev.mountaineerbassethounds.com/uploads/1/3/1/1/131163635/3059470.pdf
    • http://files.sophiacobbs.com/uploads/1/3/1/3/131379875/84578ebed58134e.pdf
    • http://files.oldhamwayultra.co.uk/uploads/1/3/1/4/131454143/8838202.pdf
    • https://cdn.shopify.com/s/files/1/0440/1197/8902/files/archero_offline_apk.pdf
    • https://cdn.shopify.com/s/files/1/0430/9178/7937/files/balwyn_blazers_uniform_shop.pdf
    • https://cdn.shopify.com/s/files/1/0429/9256/6435/files/scrap_iron_sekiro.pdf
    • https://cdn.shopify.com/s/files/1/0432/4045/6360/files/waste_to_energy_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0433/3253/4422/files/diablo_3_season_14_journey_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/5098186655.pdf
    • https://cdn.shopify.com/s/files/1/0434/3365/6476/files/english_present_and_past_tenses_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0437/0333/7114/files/79220743242.pdf
    • https://cdn.shopify.com/s/files/1/0430/3106/8825/files/sekiro_timid_maid.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/pexufidopuwupofapari.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_off00005d2a.bin
73f128112e32ca217ad6c835972fa848f2c830324ace1135a332ebe846b79aee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2A 5340 bytes
font_01_sfnt_off00006f40.bin
621cc64bbc4870fa2ccd7753194b3025f6aeb50fce9bb94a64d1b132862c86cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F40 10076 bytes
font_02_sfnt_off000091bc.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91BC 4324 bytes

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