Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1fd3a593774262…

MALICIOUS

PDF

70.2 KB Created: 2021-06-11 03:37:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3b868b28a83630c2697a5121fba9c5d SHA-1: c2225150ac5213b694b1f40dc33a3e2634921a2e SHA-256: dd1fd3a593774262106aa37c0832a426d25fd37260df40d02a5c65f997cd4556
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The PDF contains a large number of external links, suggesting a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the presence of external links and the phishing/trojan classification indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://queure.ru/pbw?utm_term=othayadi+pathayila+song+karaoke
    • https://static.s123-cdn-static.com/uploads/4530151/normal_6003c89970a94.pdf
    • https://cdn-cms.f-static.net/uploads/4463791/normal_601580944b1fd.pdf
    • https://cdn-cms.f-static.net/uploads/4465685/normal_602af1905b25c.pdf
    • https://static.s123-cdn-static.com/uploads/4386829/normal_6008279d47011.pdf
    • https://xemibunadagom.weebly.com/uploads/1/3/4/6/134639404/xelufazilaxolalukaja.pdf
    • https://cdn-cms.f-static.net/uploads/4413570/normal_6029ff032ae68.pdf
    • https://cdn-cms.f-static.net/uploads/4391305/normal_5fe9ed6dc30f5.pdf
    • https://cdn-cms.f-static.net/uploads/4418170/normal_6014868c6f073.pdf
    • https://sonefuvik.weebly.com/uploads/1/3/4/3/134325549/b7d978ae0.pdf
    • https://cdn-cms.f-static.net/uploads/4495837/normal_605c6a37a0839.pdf
    • https://cdn-cms.f-static.net/uploads/4453907/normal_6038b7799e594.pdf
    • https://static.s123-cdn-static.com/uploads/4381082/normal_5ff967002b7cd.pdf
    • https://dijitisabotiji.weebly.com/uploads/1/3/5/3/135324222/kijaxeg-fumamuzeba-fuliratexi-mixedofodu.pdf
    • https://bafupenog.weebly.com/uploads/1/3/4/1/134131575/6b1f25abf29.pdf
    • https://bivesezuwewosup.weebly.com/uploads/1/3/4/7/134765681/b4946d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a30fc38c-e7d1-4276-81ae-26f045d96764/26532459615.pdf
    • http://zixereves.pbworks.com/w/file/fetch/144664191/triangle_congruence_theorem_worksheet.pdf
    • https://uploads.strikinglycdn.com/files/44d491fc-8455-4494-a126-a33109fa2bb3/bowoxedotovijezod.pdf
    • http://zajozote.pbworks.com/f/unseen_passage_for_class_4_with_questions_and_answers.pdf
    • https://uploads.strikinglycdn.com/files/19681dbc-b996-43de-a4c7-319c7d17793c/drive_the_surprising_truth_about_what_motivates_us_daniel_h._pink_1st_edition_riverhead_books_2009.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3b6.bin
ddb47f6c11b07842522f1c02732f56ea742a3e66c4e38f4e5278fc1c4bf032e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B6 5416 bytes
font_01_sfnt_off0000e61f.bin
a42408f33672c1e96c869d94d9c1e46714d4eb46ed89a904e9ac503d0a3d3e51		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE61F 11204 bytes

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