Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e92224aa41c92a2…

MALICIOUS

PDF

83.5 KB Created: 2021-01-05 06:13:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 086abc7cad241b748e4ef305a655fc92 SHA-1: 674a0a630d9af105bc45e8e23c71641f282507b8 SHA-256: 6e92224aa41c92a264010ff45b37371fc5682b8fe5f739bdc00bb795733de171
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, a common tactic for link farms or phishing campaigns. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates a large number of external links, with one pointing to 'kevegojap.weebly.com'. The presence of embedded URLs and the ClamAV detection as 'Pdf.Phishing.Trojan' further support a malicious intent, likely related to phishing or distributing further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://trafftec.ru/123?utm_term=keto+meat+jun+recipe PDF link annotation
    • https://kevegojap.weebly.com/uploads/1/3/4/8/134863313/vosixejej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410954/normal_5faa4ba3b31b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379855/normal_5f8d1eed5c987.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379217/normal_5fe31d0695fc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448343/normal_5fba498f41e04.pdfIn PDF document text
    • https://cdn.sqhk.co/miwurazaz/TvyLkBR/space_hunter_alien_ware.pdfIn PDF document text
    • https://wumunelopilum.weebly.com/uploads/1/3/4/3/134395902/8163530.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381971/normal_5fe302860414a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388841/normal_5fc07f9364644.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453328/normal_5fda4814ef20f.pdfIn PDF document text
    • https://cdn.sqhk.co/rotogogoji/gjmTjic/vampires_netflix_2020_actors.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405195/normal_5fa0085a0cb44.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/devojadodobirunawisevi.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/sotanumigu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30F 4916 bytes
SHA-256: c3e9e48627712f97d1128822e19e63772335d0409e6624e005d5e230a66e1a8d
font_01_sfnt_off000103b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B6 11256 bytes
SHA-256: 14454b7d4ecb40a36a20431c536e22d6f35355ae2e950d8eb177a4086e24dc09
font_02_sfnt_off00012a23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A23 16092 bytes
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67

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