Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2e0a6b8e564ea11…

MALICIOUS

PDF

42.9 KB Created: 2020-09-04 23:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ebf31a5f1b2927121fe5a1d19bd994d SHA-1: e4590c6af410e975c82fde34fead253999050728 SHA-256: a2e0a6b8e564ea11c686ee05f75b38839cd8a50f7da7713d13fc1548526239cc
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO spam and phishing. One critical heuristic identified a link to a known malicious redirector, ttraff.club, which is likely intended to lead the user to a malicious site. The document body, though partially corrupted, contains text related to a 'giraffe town final boss guide' and the malicious URL, suggesting a lure to entice clicks.

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.club/wix?keyword=giraffe+town+final+boss+guide
    • https://cdn.shopify.com/s/files/1/0434/6049/3474/files/certificate_of_commendation_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/2580/0087/files/lab_report_abstract_example_biology.pdf
    • https://cdn.shopify.com/s/files/1/0437/4711/5157/files/rozemukasapin.pdf
    • https://static.usrfiles.com/ugd/c33cdb_c2d505859353426dbdac30b0de7adf32.pdf
    • https://static.usrfiles.com/ugd/b8c837_71be042c184646ac8824a5897df6df64.pdf
    • https://static.usrfiles.com/ugd/270e53_474c0c9a8bd5447b80a8cb8a8f573ec9.pdf
    • https://static.usrfiles.com/ugd/270e53_332ea161c2704a398f15bfeba98fe6a1.pdf
    • https://static.usrfiles.com/ugd/b8c837_854ccda3cc304d0586db2b2da9a270c3.pdf
    • https://static.usrfiles.com/ugd/704f6c_b4bca8f558b0497a97243d3a93f999e7.pdf
    • https://static.usrfiles.com/ugd/4dd980_019ac44667e04e608ae4f0adc1d1ad47.pdf
    • https://cdn.shopify.com/s/files/1/0435/4267/5608/files/66205695730.pdf
    • https://cdn.shopify.com/s/files/1/0439/1777/0904/files/53467902029.pdf
    • https://cdn.shopify.com/s/files/1/0435/3631/8616/files/robama.pdf
    • https://cdn.shopify.com/s/files/1/0432/2240/1192/files/zibefedopopumokawobovag.pdf
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/28135099625.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_off0000690f.bin
f157e8dee343c389db0513f9492dc9d423c5cad7e0b6a74f8bb2cf1746cc234b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x690F 5336 bytes
font_01_sfnt_off00007b55.bin
177e440edebf46db792eec807e3cf5f0402f77a3e2c60a58efa39081792eba8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B55 10468 bytes

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