Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dd713c4aa705ee2…

MALICIOUS

PDF

75.8 KB Created: 2021-06-01 20:30:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: bbaa03f3a5162b56ed09fdda28a90288 SHA-1: 6a1ad16fb22c9c2e6a3b2b524e63bc8abd73a3ab SHA-256: 8dd713c4aa705ee2065c3790a39c1b45450dcd769df16bdd3ad9e64d32bd2d18
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely intended to phish or deliver malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of an external URI and the overall detection suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://huntic.ru/pbw?utm_term=do+you+have+to+bake+sculpey+clay PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391621/normal_6066313fc6e1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453901/normal_60396d5260c56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366676/normal_6005052cc738c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381287/normal_60462534946b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490936/normal_602707ee3dc45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371788/normal_6047cb3f086e7.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/50e0ffc4-0e14-4d6c-871e-60afa9155657/why_my_new_pen_drive_is_not_detecting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cd6bf13-c0b3-4667-b997-afe91a64c8b5/8th_edition_40k_transport_rules.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b7cac1b-d0e6-4a34-9726-93e4ea95e948/miller__levine_biology_online_textbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/450a7a34-98f3-44a0-aacb-b3db86dbfd80/lenunav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcfabe14-14bc-4ac0-b614-f3d4c84b4e98/56076896833.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e779fb8b-8a26-4b5c-9f7b-1384a55b0b20/kexedatebutegikumime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df4ceed0-7d4d-4bdb-8b8a-63ad5e17827a/76578173086.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43e01217-51e7-40f1-a731-9b07778568a7/razoruxikufe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c9c74b3-ded9-45e0-bcbd-968183922fc0/26784604899.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9298612b-dd2d-48b7-b1b3-1b913cef07ac/how_to_install_alexa_echo_dot_2nd_generation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee20169e-1090-4ef1-8c2b-f96c86691dd5/wheel_hp_to_et_calculator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7828e4a3-4601-46ce-aa0f-7a798f9d7f76/wobugobukusabirojum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01e937cf-0d1c-4229-8d57-ea53627220b7/43076081225.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37c0ca94-f6de-4847-ba96-4e4c985a0a8a/the_blind_side_real_story.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d205216-b09d-4ed0-a916-615307903fed/jaybird_x2_not_turning_on.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_off0000e889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE889 5292 bytes
SHA-256: 786b45df9728731b8f1c677f16687937c5b973aac9fff24e57d2b6f6777a90ee
font_01_sfnt_off0000fa99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA99 11196 bytes
SHA-256: b48877480a577a7a652425699770a9a823407add07749e26675de97ebc1f479c

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