Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e809ccc7c1b0e5…

MALICIOUS

PDF

131.9 KB Created: 2020-08-30 23:51:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50461b0b8d1e3806d0d8da73edeb9cc1 SHA-1: 735fced0dbcb4ca7f7b1bb2f2d63b1327810aedb SHA-256: a0e809ccc7c1b0e522eba96109734fab8c77bcec41832dede34c397bd330f24d
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=livre+pour+te+sauver+p%25C3%25A8re+jorge+lori'. Additionally, another heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content. The document body, though heavily obfuscated, also contains the same suspicious URL. The primary attack pattern involves luring the user to a malicious site via the embedded link.

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/wix?keyword=livre+pour+te+sauver+p%25C3%25A8re+jorge+lori
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/82883504640.pdf
    • https://cdn.shopify.com/s/files/1/0429/9158/3391/files/pats_price_action_trading_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/astrology_answers_daily_horoscope_aquarius.pdf
    • https://cdn.shopify.com/s/files/1/0433/0464/8859/files/kewujegazazebugotowet.pdf
    • https://static.usrfiles.com/ugd/585b1d_b2547922b290498f800fe4a70b0bfc22.pdf
    • https://static.usrfiles.com/ugd/ce5d00_96262a8c7ceb4f23a4d3e814fe39bc47.pdf
    • https://static.usrfiles.com/ugd/136d07_2bda2bedb6a74f97bbc3d9575f7dc33b.pdf
    • https://static.usrfiles.com/ugd/b8c837_7833f64966f34f469fad80d53459a300.pdf
    • https://static.usrfiles.com/ugd/0d002d_06110a1211d04a938d4338a1be0f3939.pdf
    • https://static.usrfiles.com/ugd/314c35_75b4e2a9e53f4779baa07d1bc8d46b8b.pdf
    • https://static.usrfiles.com/ugd/510a18_22d67da9f0e04ec6b72ff04b67828d8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_e0a919f6f23a4a198c7e1f6e0553bd13.pdf
    • https://static.usrfiles.com/ugd/b8c837_31e591a6907047dc93217a5834b16001.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0810/files/wondershare_video_editor_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0438/1917/2000/files/9661493616.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c4d9.bin
9b717e5a211f21cc490956407377f6b0ab1f69f450d793409929188b4d6455e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x1C4D9 5204 bytes
font_01_sfnt_off0001d664.bin
3d13f4f9c510c86dd6896cef0257dc09051b7d5bd98307c82289383de39611cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x1D664 13448 bytes