Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e7281df27cebab6…

MALICIOUS

PDF

83.1 KB Created: 2021-03-26 02:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb6eb8199fbb6f33bc6593b2e5056b9a SHA-1: 174e15e276d845e0c4f192d59ca25b2e9c4a93fb SHA-256: 5e7281df27cebab6a8040dc4487a67971fbe53c213411f9f69c1546db9d3a1cb
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of links, and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests malicious intent. The embedded URL 'https://xezojetit.ru/award?keyword=convert+jpg+to+pdf+small+file' is likely part of the lure to direct users to a malicious site.

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/award?keyword=convert+jpg+to+pdf+small+file
    • https://cdn.sqhk.co/naxaroja/oDFpqng/kimuxape.pdf
    • https://cdn.sqhk.co/turanexode/vgcunhb/goal._com_arsenal_transfer_news_live.pdf
    • http://nosinoski.shop/sofewumezagadelipijugs08g.pdf
    • http://zutelotojenexop.getenjoyment.net/xonefuvadidopuvekutopam.pdf
    • http://kukushka.space/catherine_zeta_jones_griselda_blanco_netflixqjf4m.pdf
    • http://ottics.ru/gujuxowurifevosudani9qej5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0502d5d0-a0f5-47b8-bc1c-644c46e4e431.filesusr.com/ugd/6cabbb_b85ae8ef32554ba8b6939fbc6e655978.pdf?index=true
    • https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_8787aa858cfb4f33b4035839fe3d4a6d.pdf?index=true
    • https://uploads.strikinglycdn.com/files/0f88050a-ccad-4d65-a50c-4c60b58bd583/how_to_determine_if_viral_or_bacterial_pneumonia.pdf
    • https://uploads.strikinglycdn.com/files/db755480-50e8-41bf-9df2-b2de16bb79b4/kugijovududetabameluv.pdf
    • https://8c285b57-3156-47ce-881b-df665acc117b.filesusr.com/ugd/8d46c2_bac528ed17cd45b38ba389732a7d82b7.pdf?index=true
    • https://uploads.strikinglycdn.com/files/7a45524f-a918-4456-92b6-ba33f2e4b2f1/36564508563.pdf
    • https://2a4c341d-9af7-4f89-b48a-1b926ad6ced7.filesusr.com/ugd/dd6616_8c857644421e46deae12884f175f9445.pdf?index=true
    • https://uploads.strikinglycdn.com/files/72287858-7737-4d81-b54b-5e5d96bc553a/visevuxijaj.pdf
    • https://uploads.strikinglycdn.com/files/91485917-9410-4585-8409-364f8b94e4c6/85493521380.pdf
    • https://uploads.strikinglycdn.com/files/5af38f79-54a1-4de1-95aa-d0ed37f80af0/what_happens_at_the_end_of_vampire_diaries_season_7_episode_19.pdf
    • https://uploads.strikinglycdn.com/files/cea67411-5fdf-43e4-965f-9013ba238577/can_i_go_to_planet_fitness_for_free.pdf
    • http://zatuvejamubolo.atwebpages.com/poposeboza.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f116.bin
abf1e2956f631f383587d81ae587125656a43a8636c480a27dc3ee5e4c752162		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF116 5404 bytes
font_01_sfnt_off00010371.bin
92573d4150308d414eb863dcf39aa02c4281a86427052f2614484fb256f9eb01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10371 11312 bytes
font_02_sfnt_off00012a07.bin
b10e7a0583bf6b216a5471aeed10f14210f1dda3adb60ac5169fcb38ba12e60c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A07 16060 bytes

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