Malicious PDF — malware analysis report

Static analysis result for SHA-256 fedc3da122295dae…

MALICIOUS

PDF

63.3 KB Created: 2020-12-08 06:47:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 097f760576561e54797f2752b093e1e0 SHA-1: ed5efb4b326f9783b0b6c1bbcfaad129a0233419 SHA-256: fedc3da122295daeac1514d6ac5f11553a895714255fddc29139ac32817ceb8d
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for credential harvesting or malware distribution. The document body, though heavily obfuscated, suggests a lure related to design or color guides.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffnew.ru/123?utm_term=pantone+formula+guide+coated+%2526+uncoated PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385202/normal_5f8f2fbc59e75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5f879a415873c.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/tixedujegibex/wareposajumufipizipelelul.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc17bfd104edf1d7784f47d/t/5fc814536652ad59ec19b3ed/1606947924227/88459802504.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe3c31645712565406047b/1606302769786/star_wars_revan.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/83758414334.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/kimif.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4eeaca5bc066edfbf657c/t/5fc597a79ee0f32b8713f832/1606784936065/eaton_school_district_jobs.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/81528878319.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/zekaruzumujujigato.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/mebolugixajigevogamezave.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0879da3bf4b14aba759f2/t/5fc28fb3cb3e0f5771a34f8e/1606586291927/gtd-audio_t-8500_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/chikati_gadilo_chithakotudu_full_video_songs.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0efb33398ff75152e3ec8/t/5fc6b87309f4d56e8f6c5730/1606858867421/fevuvokizonusajas.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ef8fc6229360ecad283f/t/5fcbcd3a551bdc47e7b182fc/1607191867142/nascar_slot_car_track_sets.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/lagu_an_naba_muzammil_hasballah.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57785be9b69395129ae53/t/5fccdd675d2e6f3bda3c18d5/1607261544192/mad_man_after_doomsday_para_hilesi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD16 5164 bytes
SHA-256: 5729099896615e8922386dc36242890ce460c0557f96f3a67803b026e3609756
font_01_sfnt_off0000ce97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE97 9808 bytes
SHA-256: 5328d03db2503c705e41eefda3f571bc0f47763e4b3b927e2e81bdc3851a1c8b

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