Malicious PDF — malware analysis report

Static analysis result for SHA-256 3365bfe839145c8b…

MALICIOUS

PDF

46.1 KB Created: 2020-08-01 04:54:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87ad57476f44a8d6e40a63085e163810 SHA-1: 98916e2af95655add324262c19fb34f7a50a9975 SHA-256: 3365bfe839145c8b7c34db12a4eb5c9f67e58b5b4e03f0971170eeeac340b6b5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including one pointing to a known malicious redirector at `ttraff.com`. The document body, though heavily obfuscated, contains the URL `https://ttraff.com/pify?keyword=best+ffxiv+parser`, suggesting a lure related to an "ffxiv parser". The presence of a link farm heuristic further indicates a malicious intent to distribute or redirect. The primary IOC is the redirector URL, which is likely used to funnel victims to a malicious site.

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=best+ffxiv+parser
    • http://files.withvsat.com/uploads/1/3/1/8/131857315/vipedonijex_joruwarunep.pdf
    • http://files.askvic.us/uploads/1/3/1/1/131163540/e76f86e5.pdf
    • http://files.okcwriters.org/uploads/1/3/2/3/132303238/dogafibet.pdf
    • http://files.emisprint.co.uk/uploads/1/3/1/3/131381991/viniwesigosi_wifuvufafiri_navimojuper.pdf
    • https://cdn.shopify.com/s/files/1/0431/3628/6877/files/92862465112.pdf
    • https://cdn.shopify.com/s/files/1/0432/6886/6212/files/79686942930.pdf
    • https://cdn.shopify.com/s/files/1/0436/2177/7570/files/73074758553.pdf
    • https://cdn.shopify.com/s/files/1/0432/7804/1244/files/72888595923.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jerozex.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/destro_warlock_stat_priority.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xifadek.pdf
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/tejipebe.pdf
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/77382509914.pdf
    • https://cdn.shopify.com/s/files/1/0433/4419/9848/files/49686981020.pdf
    • https://cdn.shopify.com/s/files/1/0432/5005/7373/files/gijonorojar.pdf
    • https://cdn.shopify.com/s/files/1/0434/9375/2997/files/5314933368.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/1124161551.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_off000075e8.bin
567d939a00d524d260074ad567068b91c78d3833103c0d78ad5f26648473e205		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E8 5040 bytes
font_01_sfnt_off0000872a.bin
51902c9a2e4e4d7add97716385a7ae3ac6d70b6edb6f94149402778bb024e8de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x872A 10884 bytes

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