Malicious PDF — malware analysis report

Static analysis result for SHA-256 31aea6e84a20653c…

MALICIOUS

PDF

40.8 KB Created: 2020-11-05 05:58:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9aaba181b5e4ca6d70defcb40262d271 SHA-1: d97053cedf3699dd4222140b635fe4a684b3868f SHA-256: 31aea6e84a20653c27ce61d11e9b4a44ada27105b75f5ffc04a8770e168327ea
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.link/123?keyword=pokemon+revolution+online+johto+guide`. This URL is embedded within the document body, suggesting an attempt to lure the user to a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the redirector and the embedded URLs indicate a likely phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://ttraff.link/123?keyword=pokemon+revolution+online+johto+guide In PDF document text
    • https://gakuwalexutibok.weebly.com/uploads/1/3/4/3/134332976/mekibofokeki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374698/normal_5f91799236e8b.pdfIn PDF document text
    • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/pewawebubawubok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377381/normal_5f967c6658c76.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/88f03e2f-cf77-4c46-bbba-fc1c078c8c16/tetonafavevalaxibawigabut.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/66207897975.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/les_9_quadrants_de_l_abdomen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d2a8459-9754-44e8-b96a-5f78463e2ace/57744813302.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/ab_lounge_sport_setup.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/nagedo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45d57bb0-a671-4220-bf5e-6b1be4bba20c/78914423949.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/wopuzafipavafanorijolex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5847381d-6d5b-49dd-82d9-c03de55d1e73/96325044475.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/bedalala.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6168 5052 bytes
SHA-256: 08965c9df6345add992ff2e669f3a8f0c15fcf8213197bf8b181abc123551989
font_01_sfnt_off0000727f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727F 10544 bytes
SHA-256: 64388741a4cc69bdb5107f42e9521035931bb09df5c47a58c2ba2a6634ecbc91

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