Malicious PDF — malware analysis report

Static analysis result for SHA-256 19ebc543361585d6…

MALICIOUS

PDF

43.2 KB Created: 2020-08-31 08:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be8865b99302aab9b46a69365acb82a1 SHA-1: 449455af935163eb50bae4624c3329626f4b3142 SHA-256: 19ebc543361585d615109c2c8ced79e19ebc9ac5db800ef55187804f7f6734c3
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Z3x crack 36.1' and the malicious URL, suggesting a lure to download cracked software. The PDF also contains a link farm heuristic, indicating a potential SEO poisoning or spamming campaign. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=z3x+crack+36.1
    • https://static.usrfiles.com/ugd/3b0c81_6a514651bf2b4c09ac047e8ff2740440.pdf
    • https://static.usrfiles.com/ugd/0f1814_f6adc4b7b26948229297297d1522535b.pdf
    • https://static.usrfiles.com/ugd/b8c837_57da1a70ffb54bcdb5b94610ada5d0ce.pdf
    • https://static.usrfiles.com/ugd/2b25e8_b750c558dc5d46dd87645237f276de4b.pdf
    • https://static.usrfiles.com/ugd/b8c837_928557fc88504efd843ea792ab26c7a0.pdf
    • https://static.usrfiles.com/ugd/5e81b9_809fce3852bf483b856313dbf530a833.pdf
    • https://static.usrfiles.com/ugd/b65acf_a4b584b313384d28a0c386a9e1279fb0.pdf
    • https://static.usrfiles.com/ugd/b8c837_33906e7b17164d1da9613f6d42afb0ce.pdf
    • https://cdn.shopify.com/s/files/1/0432/7063/5676/files/26395253929.pdf
    • https://cdn.shopify.com/s/files/1/0437/4665/6408/files/channels_of_distribution.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/bartender_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/2811/7661/files/71504936326.pdf
    • https://cdn.shopify.com/s/files/1/0431/7131/5876/files/download_aadhar_card_application_form.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
stream_005_off000085d9.bin
34645bb354a7ea6bb3f6934a75dc0c52a603a49c0ed78c2db8f6d26b16f22e53		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x85D9 17540 bytes
font_00_sfnt_off0000506e.bin
94cd8645265028e9e39b31acd3b48b393410fc472b433c4a8c3790987d5e2d3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x506E 5072 bytes
font_01_sfnt_off000061cf.bin
b5fae8d356edd95144dc4ff411456857fa2fec3aa7d1ff699d67627c351c68c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61CF 10524 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.