Malicious PDF — malware analysis report

Static analysis result for SHA-256 919188ea2b3952c3…

MALICIOUS

PDF

66.5 KB Created: 2020-12-06 10:09:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a21ebaf609193dc7e233642340421b28 SHA-1: 6d4d0ab101d5f94f399400feda4ac8c4157f6803 SHA-256: 919188ea2b3952c357490c490623673485d99bb11839b4c150027d14e9cdaa5e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/aws?utm_term=employment+letter+format+for+tourist+visa PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403561/normal_5f925c39c873d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464315/normal_5fa8cea507c3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446789/normal_5fa3e6b9723bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463306/normal_5fb5e1ade04cc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc29a73239b0722913c2875/t/5fc67174145a8629dc8f59dd/1606840692548/84443927308.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1ac7a40f1034a5cae5b81/t/5fc9306b613e5073df53d125/1607020652752/cruise_fruit_soup_recipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8f58f21-ea2a-4b58-804d-d9c53bdc9c0a/90241610200.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd3e43aeecf12f3027de2e/1606237764176/words_beginning_with_ho.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33079787-08a8-4c0c-b63b-55348185f1a6/98703877719.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b644cb6-12b4-497d-a8f8-96a55340106e/xolenegusodabajuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51d0866c-ed11-4ba6-880a-6ee7fde598ff/pimipuzewi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc006d0104edf1d777bfbd4/t/5fc3253a9d79364840f4e5e6/1606624570895/shining_rock_wilderness_trails.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1c91c4e-b25b-4189-9e6b-540c7fd129f8/bogafabazozabutume.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfab7ec0a1d2b4e55983d/1606220475724/snapchat_upload_apk.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 3

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_off0000c6dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6DC 5164 bytes
SHA-256: 700b1a00a1abed2e2f60bcb33b55b1862cad0f58003c48b2a4dd230f56d3bf37
font_01_sfnt_off0000d868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD868 10652 bytes
SHA-256: 39ae378076d667083d39d7e35fbcc39e3ec938d64e7eeb1a437d9126ad185131

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