Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9a31376001aafe1…

MALICIOUS

PDF

45.7 KB Created: 2020-09-16 17:07:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 442feddf65eeb67bf31c964f4f642994 SHA-1: 6ea54eb7915d23fe4434e19fe522d8c1a74af59c SHA-256: b9a31376001aafe16f1dda8812ebd8d5f892cbc3e9b9b63d5fc4b7155656fa4c
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with many links pointing to PDF files hosted on various domains. One of the primary links, disguised as a '2007 ski doo service manual pdf', redirects through 'ttraff.club', which is known malicious infrastructure. This indicates a lure to download further malicious content or redirect to phishing sites. No scripts were extracted from this sample.

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=2007+ski+doo+service+manual+pdf
    • http://files.thermage.sg/uploads/1/3/1/1/131163687/3557336.pdf
    • http://fibobad.ascientistengineer.me/uploads/1/3/0/7/130740434/49a331379472.pdf
    • http://vopen.farmacyorchard.com/uploads/1/3/0/7/130738836/gizabadaxosidajoruza.pdf
    • http://files.rebeccabrillweitz.com/uploads/1/3/0/7/130740401/ditema.pdf
    • http://files.timberridgewolfdogs.com/uploads/1/3/0/7/130775747/wiwomuvi.pdf
    • https://70b615b2-bada-4c17-ac76-e83238b4d00f.filesusr.com/ugd/b916f4_020c3e218c104cc98eea50403990068b.pdf?index=true
    • https://e0de21cf-194a-4faa-84f7-870a4aadee88.filesusr.com/ugd/f6336d_90e8509d87024d64bc2b4234387cc59c.pdf?index=true
    • https://625011a4-6eb7-485f-8988-c2eb84890c9e.filesusr.com/ugd/8c5bc8_e2b341435fef4fe788c570a56bc5c15a.pdf?index=true
    • https://117abc11-069e-4e8f-8582-9a5e59bdc000.filesusr.com/ugd/36d413_10fa928bc2b142f687b8fd9db0da27b8.pdf?index=true
    • https://baf89809-30e8-4733-8dda-07a7312abc7c.filesusr.com/ugd/417718_baa4be6dbc6f45cfbb08109478f74840.pdf?index=true
    • https://977de6ec-4576-4b60-ac96-97bb90d1c18d.filesusr.com/ugd/2994dd_36a6e4533c594a6097986cef6fd114cd.pdf?index=true
    • https://205a93b0-1898-49c7-926e-f692f859ea77.filesusr.com/ugd/dba42a_20971b181f5f479fae75fc20a7c72790.pdf?index=true
    • https://e935edd2-5224-4bac-991c-8c3ee8c144d5.filesusr.com/ugd/77941b_a54995df6b8940c6aa61fb70eb030be0.pdf?index=true
    • https://2257b51c-348c-4c34-b56e-99865b9764f3.filesusr.com/ugd/95089d_6b461c5d9b2244769153b2b8cf208459.pdf?index=true
    • https://da35df40-0a34-41aa-a9a0-f32accea0264.filesusr.com/ugd/e948c1_a656d9a9fd6241d686f707870b42d861.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ca5.bin
7fc5e6ad2b665314205eb140c19595cca4e03952a0eef751310a2f1af1095d0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA5 5484 bytes
font_01_sfnt_off00006f2b.bin
924ab743508e471875aa346c620070855971cca1fb3613b636e1751a712ae722		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2B 14228 bytes
font_02_sfnt_off00009ba9.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA9 4324 bytes

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