Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d1fbcd0b942a74f…

MALICIOUS

PDF

71.0 KB Created: 2020-12-19 15:48:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 82766182617aab259f7e4e56cacd6de0 SHA-1: 7af826ada4174f6da3ed9a713febdcb2fe12aebf SHA-256: 7d1fbcd0b942a74fc92ecb998c734cfac67c18cbec64b3068b81928c7da5c687
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with a primary suspicious URL pointing to 'traffnew.ru', suggesting it's part of a phishing or malware distribution campaign. The document body, though malformed, appears to be a lure for a book download, aligning with the 'link farm' heuristic.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffnew.ru/aws?utm_term=complete+book+of+amulets+and+talismans+pdf PDF link annotation
    • https://rulozakowix.weebly.com/uploads/1/3/4/7/134730123/xuwitupe.pdfIn PDF document text
    • https://jubekufolofifi.weebly.com/uploads/1/3/4/5/134593927/7860326.pdfIn PDF document text
    • https://bukodebavuv.weebly.com/uploads/1/3/4/6/134657655/vitokaruxugikigi.pdfIn PDF document text
    • https://betimamiru.weebly.com/uploads/1/3/4/8/134898968/f7d2b24d3255.pdfIn PDF document text
    • https://lepopitiw.weebly.com/uploads/1/3/4/7/134762721/d423de7e895a.pdfIn PDF document text
    • https://loguxofe.weebly.com/uploads/1/3/0/7/130775118/nadorobirupam_pibumeb_ziregipowuf_govinazov.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/wisiliw-metel.pdfIn PDF document text
    • https://mamapesuwilataj.weebly.com/uploads/1/3/4/8/134857931/4c9a82653ce9.pdfIn PDF document text
    • https://pepusaneped.weebly.com/uploads/1/3/4/5/134503703/d774526.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/db3db04d-7b6a-46a1-a7c8-1e9a405fb9d1/kofivototivodinurami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cfdff9d-5fd7-4d5d-9221-fb1138cb049b/big_head_basketball_legends_unblocked_76.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae6db96b-8a37-44cd-a04b-64049fddd357/sovosorowexijoduf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aed89cff-0fc4-4fe3-8846-ce21225d5df5/20772503389.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_off0000d783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD783 5200 bytes
SHA-256: 6e518e2525ccaf4132ad54e93c1e0065375ff5a077366e9846e2ef4695b67838
font_01_sfnt_off0000e919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE919 11388 bytes
SHA-256: 46332809b8eb6ebbecbbb1fd572410eb74d4c5d7a2e6e95de906e9acbc42b1a5

Open this report in the interactive analyzer, or submit your own file for analysis.