Malicious PDF — malware analysis report

Static analysis result for SHA-256 f69d0d48d8deb3f2…

MALICIOUS

PDF

51.4 KB Created: 2020-08-21 03:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8600371105265eb5d6f84110d9c53ccb SHA-1: 1993e20efbdcb07fc32434bf539662d7f0484d80 SHA-256: f69d0d48d8deb3f2696edfea50dac5dca0e7f1c81e6c78a52290117dfdea0316
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body and heuristics indicate a lure for 'Bittorrent pro apk free', directing users to the malicious URL https://ttraff.com/pify?keyword=bittorrent+pro+apk+free. The file also contains a large number of links to Shopify-hosted PDFs, suggesting a link farm for SEO manipulation.

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=bittorrent+pro+apk+free
    • http://files.escape-and-explore.com/uploads/1/3/0/8/130874012/luwinenugenudejamuvo.pdf
    • http://files.mendocinosportsclub.com/uploads/1/3/2/8/132815924/89985.pdf
    • http://files.jessicafineartist.com/uploads/1/3/1/3/131384335/linoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5910/9279/files/fevikelabaxexinegovikas.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/vilefilegepaxejedomiviwig.pdf
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/65787982695.pdf
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/uscis_form_i-_9_section_2.pdf
    • https://cdn.shopify.com/s/files/1/0447/5263/4005/files/zerulosubolinozu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/xuzokusopinozidos.pdf
    • https://cdn.shopify.com/s/files/1/0436/9688/1814/files/energy_storage_materials.pdf
    • https://cdn.shopify.com/s/files/1/0428/9721/1551/files/vayu_cyclone_weather_report.pdf
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/getenalogobim.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/android_emulator_localhost_api.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_off00006d95.bin
1f0bd2ef035cbf46f563b0b4645f2d95ecbda6a755908a2e15511f6d99c08944		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D95 4796 bytes
font_01_sfnt_off00007df7.bin
a310f0fd3b89e1cac6b32660370135f2fb309cb56ba2a26eace750e0e110baed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF7 15844 bytes
font_02_sfnt_off0000a9a2.bin
43c1ee616dc3be43b5b024fbb240f2c1c65d323ab86308c39a248d24909b890d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9A2 16316 bytes

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