Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d27c87e5193a41a…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 07:20:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76ffbe733e04f0aebf392298d89de116 SHA-1: 65080fe93e2fc1b46bf27bf783ace4bc78cde7bb SHA-256: 8d27c87e5193a41aa70c4c5a978d67792031dbe8086bc7d9a951d06c7ec85d0a
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, specifically pointing to 'https://ttraff.ru/pify?keyword=transformers+prime+autobots+roll+out'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same lure text and URLs, suggesting an attempt to disguise malicious links as content. The primary intent appears to be redirecting users to malicious infrastructure.

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.ru/pify?keyword=transformers+prime+autobots+roll+out
    • http://visuni.armstrongsinvestigators.com/uploads/1/3/0/7/130740112/e50d1b9.pdf
    • http://gusidisuz.hatcherforgeandleather.com/uploads/1/3/2/3/132302978/d5642b8dbed4.pdf
    • http://files.dopenailz.com/uploads/1/3/1/8/131871730/sitisotafimasokeruzo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7825/4753/files/76471342675.pdf
    • https://cdn.shopify.com/s/files/1/0428/9354/1535/files/fundamentals_of_corporate_finance_berk_3rd.pdf
    • https://cdn.shopify.com/s/files/1/0434/8598/6982/files/89013148627.pdf
    • https://cdn.shopify.com/s/files/1/0432/4294/6724/files/karivexujas.pdf
    • https://cdn.shopify.com/s/files/1/0429/2539/2035/files/48056540921.pdf
    • https://cdn.shopify.com/s/files/1/0437/0454/9544/files/nodoguripilujagizope.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/crystal_agile_methodology.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/pilukezusubominuvi.pdf
    • https://cdn.shopify.com/s/files/1/0437/0831/7850/files/audio_cutter_app.pdf
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/53396990099.pdf
    • https://cdn.shopify.com/s/files/1/0434/0213/3671/files/muwukojopavisivi.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_off000069ab.bin
a5c71aec3164dd4a023688001cf02fd8eb608131cdf1ec45a28c6a60faab40c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69AB 3452 bytes
font_01_sfnt_off000075fb.bin
e6c87196b907cdb3265ac12e3a47a71c175af01bd220fd1a53bbc74cd7b8378c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75FB 5136 bytes
font_02_sfnt_off00008752.bin
e0649afeeaa784aa5e09e5b975a562c24bf58e205e3a75dd0750b93fff976074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8752 9856 bytes

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