Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a55e896506b1518…

MALICIOUS

PDF

69.5 KB Created: 2021-03-04 09:28:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c5abce84fcfba652220449e41c552999 SHA-1: 8036728c770673fb597796c71a68779c3f57419b SHA-256: 1a55e896506b15184dd47499f613f07091061ba3a1ca7832569ab4841345b7c8
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are part of a link farm, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to deliver a second-stage payload or phish for credentials. The document body, though heavily obfuscated, contains text related to AutoCAD commands, serving as a lure to encourage interaction with the embedded malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9649

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
  • 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
  • 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://gimoguvi.ru/award?keyword=how+to+use+stretch+command+in+autocad PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476577/normal_5ff3ce108dd59.pdfIn PDF document text
    • http://oneplusonemain.xyz/unitypoint_urgent_care_des_moines_hours7xwpd.pdfIn PDF document text
    • http://helpforteam.com/96880083464jfz3z.pdfIn PDF document text
    • http://rigudozefogo.mypressonline.com/50533369131.pdfIn PDF document text
    • http://xariketixagat.mypressonline.com/xofomijuk.pdfIn PDF document text
    • https://lirobepofuneve.weebly.com/uploads/1/3/0/7/130740173/e25859395.pdfIn PDF document text
    • https://dulebolipema.weebly.com/uploads/1/3/5/9/135997598/240531.pdfIn PDF document text
    • https://sivisobimiji.weebly.com/uploads/1/3/4/7/134754783/zofep.pdfIn PDF document text
    • http://kilidivofafo.iblogger.org/zimiboruburerogutudujo.pdfIn PDF document text
    • https://nokogijesa.weebly.com/uploads/1/3/1/4/131452879/5393616.pdfIn PDF document text
    • http://my-favshopf.online/cinema_hd_1._3._5_mod_apk1njy7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480182/normal_600fd8b498625.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/can_i_play_fantasy_football_by_yourself.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450260/normal_600b74ebd07a8.pdfIn PDF document text
    • http://tavafotuzefox.sportsontheweb.net/17780668055.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/do_you_capitalize_presidential_election.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://moretavumafoge.epizy.com/how_to_use_google_workspace_for_business.pdfIn PDF document text
    • http://wuduzukatej.epizy.com/kasofewixewunabit.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000103a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A9 5200 bytes
SHA-256: 6990d85a43b5fb95d211e44d1cad481dd27027e4656fe16083f319b7d6907548

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