Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7206ec681ed0bab…

MALICIOUS

PDF

94.7 KB Created: 2021-03-26 08:36:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9373f6b34d59f3128303c0400b6bdc45 SHA-1: 4bdf3266cc629aa7ac982b9acc6562afda96715a SHA-256: f7206ec681ed0bab35654d78848fd89e613ace5391c48ea5caa628c2b4dc822e
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, indicating a phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely for further exploitation. The document body, though heavily obfuscated, suggests a lure related to an 'Iceland tour guide pdf'. No scripts were extracted, but the presence of external URIs and the overall detection profile points to a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://crophysi.ru/123?utm_term=iceland+tour+guide+pdf PDF link annotation
    • https://cdn.sqhk.co/nuvurero/jL3gjUe/sumip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419847/normal_6004819ebc405.pdfIn PDF document text
    • https://cdn.sqhk.co/sisamide/eGgepid/telegram_messenger_by_telegram_fz-_llc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482619/normal_5fd2c9d4209a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366000/normal_60586ea89faff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465018/normal_602c7ca2df0f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502819/normal_5febff679cc9e.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/jTpgdly/84965927762.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/jahihbo/dunkleosteus_fossil_animal_crossing.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/664f2ee2-c927-4dc9-88e9-45246df52b6e/79499302445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29e39fd0-8c45-456a-bf2c-39544d56b685/thermaltake_core_v21_parts.pdfIn PDF document text
    • http://sovotovagito.epizy.com/bunajerulerenopese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bf88832-588f-4e26-8744-37acac7c6a65/rivobi.pdfIn PDF document text
    • http://soripewanadu.rf.gd/anarkali_adiye_anarkali_song_masstamilan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/938e839e-aecd-41e7-8995-a305fb372511/kubler_ross_stages_grief_relationships.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1ce320d-7483-44ef-8f86-79a2a7a5aaed/2000_jeep_grand_cherokee_under_hood_fuse_box_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf47ff65-141d-4c91-84d3-28129c94fb87/kejafugifetufatafuxolepup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70e31cbe-b202-40d8-897a-4f3b935f378a/what_is_drive_theory_in_psychology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/011ef560-d059-404b-b2b6-b60f812fe567/72695545570.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ec9bb33-8b1c-44ae-8cd0-7d6103da0333/kenmore_electric_dryer_repair_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e61851ed-71ee-4b7a-996e-fd05d8c64ff8/love_and_respect_conference_workbook.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001231f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1231F 4964 bytes
SHA-256: 3a8ef7e95d9a2e780314c3bba9074c9789fbaf512ba9a42bd8593e23d1aee95f
font_01_sfnt_off000133ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133FF 12664 bytes
SHA-256: bca39df574a9b1d9e4863ba4b13e2667892387dd56c2cd6c9d318519e410020e
font_02_sfnt_off00015d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D9B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176