Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df80f8b4c19d1d7…

MALICIOUS

PDF

78.0 KB Created: 2021-03-24 19:12:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e43b411ee2f652204bb5a59682df008 SHA-1: a5a907bed31d4b6bdef2cbaba776b2a93da61ef2 SHA-256: 6df80f8b4c19d1d7df254fbac20efb025448c5f7fdf780d0e02133158dc1c0a5
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating the presence of an external URI. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the nature of the detected threat indicate it likely attempts to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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://resalured.ru/award?keyword=holland+america+travel+agent+rates+pdf
    • https://cdn.sqhk.co/gowamojon/g4Esv9g/jamurewelivobuge.pdf
    • https://cdn.sqhk.co/nokotadi/wUjaOji/6942976910.pdf
    • http://rocketdocs.us/340196088207an96.pdf
    • https://static.s123-cdn-static.com/uploads/4417309/normal_5ff39d315e552.pdf
    • http://dragonflysagewellness.com/13719608589h7jlj.pdf
    • https://cdn.sqhk.co/mibaforetu/Jib2iig/condado_tacos_locations.pdf
    • http://magnifioco.site/sony_rx100_vi_ou_vii1papr.pdf
    • https://cdn-cms.f-static.net/uploads/4423752/normal_602544c663669.pdf
    • https://static.s123-cdn-static.com/uploads/4453902/normal_5fecf4149ec10.pdf
    • http://bonifacy.site/floor_function_latexpvhb8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nawuvud/kurovidolufikujax.pdf
    • https://uploads.strikinglycdn.com/files/7db592f8-65f7-42a1-a9a9-783bce173f73/fowaxikufezozo.pdf
    • https://uploads.strikinglycdn.com/files/c662aac9-9ea1-48b1-9484-64eb91d8e0d3/blue_moon_chords_ukulele.pdf
    • https://s3.amazonaws.com/ruzumeb/best_online_multiplayer_game_for_pc.pdf
    • https://uploads.strikinglycdn.com/files/6c94e00e-39db-4935-8268-a6f09d316a12/78934226911.pdf
    • https://s3.amazonaws.com/sojebelevenex/hr_business_plan_template_free.pdf
    • https://uploads.strikinglycdn.com/files/54d89915-f459-4a47-a0ae-9f491663177f/10269290075.pdf
    • https://s3.amazonaws.com/gewuwasi/bemakovixu.pdf
    • https://s3.amazonaws.com/putelekireza/orchestra_video_3gp.pdf
    • https://uploads.strikinglycdn.com/files/fdec15d6-a800-4cb8-b9ce-765a0a50a469/vofadogu.pdf
    • https://uploads.strikinglycdn.com/files/5811ed81-0234-4ff2-9cd8-cc5171dceb74/dejobutoko.pdf
    • https://uploads.strikinglycdn.com/files/65e804de-e664-4e04-b967-102f868de92d/vonuvo.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_off0000f04b.bin
e52d62725d992bbf7dc052082d2539ae5b51400a2665fc489baac00b1d90d427
pdf-font-stream PDF embedded font (sfnt) at offset 0xF04B 5496 bytes
font_01_sfnt_off000102ed.bin
1c7e34d8e573d082cbdede2ac3c6faed6af28401f96ca4490801ad278d09f615
pdf-font-stream PDF embedded font (sfnt) at offset 0x102ED 11160 bytes