Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc9120a408d811d8…

MALICIOUS

PDF

58.9 KB Created: 2020-08-17 03:22:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9323b6f6d9ce3c46de371ac6044e525 SHA-1: 18e7e43a68ff332fa2c61b6367664f58f0eb6d5b SHA-256: dc9120a408d811d83a1f030067cd3de0888fb74129d1282843649dd15a081ffa
128 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'. Additionally, it exhibits a PDF link farm behavior, with multiple links hosted on Shopify domains, one of which is also identified as a potential entry point. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=twitter+videos+on+mobile', suggesting a lure to entice users to click on malicious content. The presence of urgency language further supports a social engineering attack.

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=twitter+videos+on+mobile
    • http://nifatef.newmomcompany.com/uploads/1/3/0/8/130814328/6407025.pdf
    • https://cdn.shopify.com/s/files/1/0429/3882/6918/files/rebeweminevuluwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/58491621037.pdf
    • https://cdn.shopify.com/s/files/1/0431/5581/6599/files/wikumisarenu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1021/1491/files/adobe_reader_chrome_plugin_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/5185/9611/files/addicted_novel_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/0506/6907/files/pifebabudulemajokugixa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6747/3046/files/personajes_de_dragon_ball.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46287179129.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c08.bin
0eee6622e39234fb7f51b14af54de99856f330a4cfb00c4d4033af911383b8d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C08 4792 bytes
font_01_sfnt_off00007c3d.bin
4e194a27981473ebd2309dff6c03b0dd68f771649db1c5429bb7b469d96b203f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3D 8184 bytes
font_02_sfnt_off00009290.bin
245a4650a1c70b6c50beeaac270df6dfac3846a790a94836d61265af5c65e5c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9290 10740 bytes
font_03_sfnt_off0000b755.bin
9a73e35fd158bd23e7ebc701902b6e2c5975cfb968036478fb9bc76b5e98a123		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB755 17096 bytes
font_04_sfnt_off0000cfc2.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFC2 4324 bytes

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