Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd57b30e9ee57458…

MALICIOUS

PDF

54.2 KB Created: 2020-09-17 18:03:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73ff65357b12e03d507801c2ade48d9b SHA-1: 55d81924b301abf5f81f9ca1eeefbc85b36d590a SHA-256: bd57b30e9ee57458b9959fa31f117ad341df498226bad8fc91d0341693683941
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.me/wix?keyword=rainydaze+guide+service'. Another critical heuristic identified a large number of external PDF links, suggesting a link farm for SEO manipulation or to host further malicious content. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. The primary intent appears to be redirecting the user to a malicious site, likely for phishing or malware delivery.

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.me/wix?keyword=rainydaze+guide+service
    • http://taduto.screenplaysandartbymichael.com/uploads/1/3/2/8/132814946/4274973.pdf
    • http://files.rossvillelodge318.com/uploads/1/3/2/6/132680827/7712170.pdf
    • http://files.somaticsynergies.com/uploads/1/3/1/4/131438891/kexopexolukol.pdf
    • http://files.lidadraws.com/uploads/1/3/2/6/132682607/9183444.pdf
    • http://files.jackiesskinbeautiful.com/uploads/1/3/0/7/130738822/rurujifimusa.pdf
    • http://files.nextstepvba.com/uploads/1/3/1/6/131606951/1535307.pdf
    • http://files.romanstonedepot.com/uploads/1/3/2/8/132814996/jogujalovarexod_libexupelekigo_dibam.pdf
    • https://852cb4c0-9743-441a-878b-0ad8661740b8.filesusr.com/ugd/934fc3_adbbeb869bb24609aa86426ae7627662.pdf?index=true
    • https://20934f9a-30f6-4996-b5af-4639fcb736b3.filesusr.com/ugd/29c71c_18587ebd6b4f4da9aea9a748962a3f9e.pdf?index=true
    • https://69ece591-71de-4569-8967-e3f3b1750d43.filesusr.com/ugd/50de67_f8be7b8707dc40c0b663c8b4e27fc094.pdf?index=true
    • https://e243c373-cbe9-4684-9ded-298a501182d5.filesusr.com/ugd/50988c_c30f29e2ff7843728925c43786bbe065.pdf?index=true
    • https://79b30b7b-dc28-4409-b6e5-2508b72112f3.filesusr.com/ugd/2274a7_9f23b6ea952a4a10b6375a7759ff0fb4.pdf?index=true
    • https://98ba7302-872c-4e9b-8acc-655765f0a63f.filesusr.com/ugd/ac8c68_a28e55d97eee464f8b15f8fb60bbbc06.pdf?index=true
    • https://d9912831-0225-44bf-a2b8-593bb401c32e.filesusr.com/ugd/c836c3_c2f28fb59f7740688fbf73a57d6909f4.pdf?index=true
    • https://945d75f2-439d-4825-8943-a37a03deb30e.filesusr.com/ugd/7dfe85_1a4d5dd90b6241edb55fa512c212fa5f.pdf?index=true
    • https://a88b81a3-b7b3-4a08-85d0-9f243825dde5.filesusr.com/ugd/01bc73_dae56a835f5649688ed6a3f867ce3153.pdf?index=true
    • 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_off00009476.bin
b3794b0f89b11d837e7c0741b51ea3f0aabefbca150e4617f0d43c285787c689		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9476 5292 bytes
font_01_sfnt_off0000a6ad.bin
f57642529a9394f9153379b62a9258bfcc0b7e30fb7780a0945192fc66d5516b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6AD 10788 bytes

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