Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ccb7120567a5c5…

MALICIOUS

PDF

61.0 KB Created: 2020-12-11 21:21:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: aa6f8aa8643f63e5bc571988b424693c SHA-1: fdf34880a9a91222eda12c10e056a14fd23ae125 SHA-256: 56ccb7120567a5c5d62867b1ad17b8c06adcb62ce6b656a013dc59a55813f009
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, many of which are to file-sharing services, suggesting a link farm or distribution mechanism for malicious content. The embedded URL points to a search query related to 'imanage work 10 admin guide', likely a lure to entice users to click on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://trafficel.ru/wb?keyword=imanage%20work%2010%20admin%20guide PDF link annotation
    • https://pufakifitapota.weebly.com/uploads/1/3/4/5/134581323/9715904d3.pdfIn PDF document text
    • https://luwujapi.weebly.com/uploads/1/3/4/7/134751522/wumifemejaso_rexofidatiwid_pidibuforigi.pdfIn PDF document text
    • https://xeveguxugagu.weebly.com/uploads/1/3/4/6/134600238/ac48d559b6f439.pdfIn PDF document text
    • https://munuteme.weebly.com/uploads/1/3/4/8/134862418/1712911.pdfIn PDF document text
    • https://zavadogo.weebly.com/uploads/1/3/4/3/134325895/311908.pdfIn PDF document text
    • https://guzezetuxavipub.weebly.com/uploads/1/3/4/7/134765233/beb1892afceb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382780/normal_5f8db629758b4.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/6406c2c9-dfb2-4938-a1e9-151d95369f5b/62530997269.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/nisisisodugav.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/72117624172.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/zubaxejimubum.pdfIn PDF document text
    • https://s3.amazonaws.com/tagorarib/tozobawitenenat.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/diacritical_marks_pronunciation_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7d0a749-04fd-4502-a7e7-6f3de9d50a5f/69330298242.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aa67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA67 5220 bytes
SHA-256: 88d8af314005dc288c3927da520a0db7d7e63bedeb237f349c050496371b11d6
font_01_sfnt_off0000bc1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC1F 3720 bytes
SHA-256: 40ef96da86b6123d577d475be460de15c41b9ca7393a8e650be4e9942aa3c64b
font_02_sfnt_off0000c780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC780 9268 bytes
SHA-256: 56bce07d9aabba3a470df8f61c80c75c0d0c23482ab845b62a9253f64cfdf424

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