Malicious PDF — malware analysis report

Static analysis result for SHA-256 8363d9ca3584e920…

MALICIOUS

PDF

84.6 KB Created: 2021-04-01 03:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 07cf57a50f266d09945d35cdd4bb3b4b SHA-1: ce5c7de116d94ce5af2ca30383007ba7d89d7866 SHA-256: 8363d9ca3584e920361cc0b3017ab5adc80c0893ce4df8b1b0cf3e101ea1424d
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external links, many pointing to benign-looking documents, but also includes a suspicious URL that appears to be part of a link farm. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or malware delivery. While no scripts were directly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7608

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 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
  • 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/aws?utm_term=what+is+the+purpose+of+nmap PDF link annotation
    • http://dimax-matrasy.ru/33417809385q9sw2.pdfIn PDF document text
    • http://smotrikino.fun/134348335768u48s.pdfIn PDF document text
    • http://detonic-romania.website/dua_e_manzil_free_downloadh8qtu.pdfIn PDF document text
    • http://winsbig.space/fantasy_wargaming_the_highest_level_of_allqhfiv.pdfIn PDF document text
    • http://smartcreditscore.info/what_do_umbrella_symbolize_in_a_dream7m9ke.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/numunenoji/dungeons_and_dragons_board_game_rules.pdfIn PDF document text
    • https://b6f97e74-198a-461d-a312-d71b9712332b.filesusr.com/ugd/a2d007_cb766d142db945d690d0b5ff81e0db21.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/dalozudonapusevi.pdfIn PDF document text
    • https://a6047d18-b57f-4fdc-88fa-dea7715a8642.filesusr.com/ugd/189347_b3702989144543419863a1f91926724b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xopugup/45466717026.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7db6fb1-59d1-4d9e-b9a6-94eaa8c4e11c/zulebuxe.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/human_anatomy_atlas_2018_free_ios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc58c34d-fa96-4dea-82b3-e6854a5ceccf/chefschoice_4643_prontopro_diamond_hone_manual_knife_sharpener.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/consumer_reports_used_car_buying_guide_magazine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/950e4042-38ba-4dfd-a080-e7e4519c76e8/toxezisekitopek.pdfIn PDF document text
    • https://ddb281da-11d2-423e-b83a-408ecf1f607f.filesusr.com/ugd/9db61c_0a741626726f4ad7af95e6c38bb89127.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/dunelm_bed_sheet_sets.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/64025749101.pdfIn PDF document text
    • https://ad0d0dbb-669b-46a9-85df-79487014a0f3.filesusr.com/ugd/00d95d_56a14e2329634def9122d5c3602da830.pdf?index=trueIn PDF document text
    • https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_741b6914c27a458abb6d93861d6f1bdb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7b1447d-ae80-4a52-8fba-f7b7062395c2/95877446549.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f162955a-1c06-411b-b892-959aed4df5c4/dewogekonitedu.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_off00012a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A76 5120 bytes
SHA-256: 47dc670e4cc7d2679e4a15fda0792216a7fa0a3f553f22940542008aa16f319f

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