Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2929be97a4ff12…

MALICIOUS

PDF

49.3 KB Created: 2020-10-26 14:47:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7c2c0ba904c7eaf2298be0b8384388b0 SHA-1: 22ee8c430fb8c676e258a7ac7037354736caa64e SHA-256: ca2929be97a4ff12eda571fe1a63a1eaf6e8541d0e7bc4b2a6d19c3cc67f3195
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded URLs, with one pointing to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure related to 'dnd 5e warlock spell sheet pdf'. The presence of numerous external PDF links, including one to a malicious redirector, indicates a likely attempt to drive traffic to malicious sites, potentially for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ggtraff.ru/aws?keyword=dnd+5e+warlock+spell+sheet+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367950/normal_5f8e3c80dc516.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366014/normal_5f8fbe197d513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367019/normal_5f907f6facdcb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5f91c4ce04f69.pdfIn PDF document text
    • https://nifadajenekipib.weebly.com/uploads/1/3/4/3/134305148/zagulumiju-zedigu-xibarabafa-zodaxapopinazil.pdfIn PDF document text
    • https://xezefamije.weebly.com/uploads/1/3/4/3/134352880/7455189.pdfIn PDF document text
    • https://sejejuno.weebly.com/uploads/1/3/4/4/134447194/tunube.pdfIn PDF document text
    • https://zadujemerumid.weebly.com/uploads/1/3/2/6/132695269/zejedexikejinakogake.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/jepavilutabilel/bazoleguridisenife.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/53786639575.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/88802455207.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/pisizufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb720a88-68c6-4543-917b-14c60cc6eef3/52445337188.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/602e46f4-251c-4711-96cf-3d490e6654dd/sarrainodu_2017_movie_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/086dcdcb-f604-4303-acd0-50733f6529f8/pagomubakinudelefe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0c41dcd-1ee6-440f-a82d-e5aa005f519a/pulopix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b14dff38-cded-4997-83f6-13656d5db990/crisis_investing.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/agradecimiento_definicion.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/78867328269.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/assembler_plusieurs_en_un_seul.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/nixasikaxagubaxuvaju.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8186 5524 bytes
SHA-256: 68991709c73ebc311901a1820aaa224efaa02dbdaac01a40f9de2b205f1f5a8d
font_01_sfnt_off0000945d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945D 10380 bytes
SHA-256: f268449ac999376da220b29528ea74d11452f9edbb993bc8c637fff942249cd0

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