Malicious PDF — malware analysis report

Static analysis result for SHA-256 222e7cf126e8a064…

MALICIOUS

PDF

74.2 KB Created: 2021-06-09 17:33:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: f49a3ec3f0e5580d1afb4f2cc56033bf SHA-1: cf9e5abbf9458c4c9a48748dd12543e97965ba12 SHA-256: 222e7cf126e8a064af37f2557cd6b8e16513e50b39400e6bcbd17b21b41cb1bb
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malware or providing sensitive information. No scripts were extracted, but the presence of the URI and the ML detection strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://huntic.ru/pbw?utm_term=free+event+budget+template+word PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4530171/normal_600e2ae2ab760.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456372/normal_5fc88a4c4baad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481168/normal_603eb979c23d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417530/normal_602423daf159b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393035/normal_6012790cf17cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449987/normal_602bb2a949658.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457876/normal_5feaef36f3389.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366027/normal_60583befbd472.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451561/normal_5fdf00bb46943.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369502/normal_60559b83751ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f915027b-b93b-45cc-851d-547ef4069578/90426620910.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bf4bf60-2361-491f-a789-1059aeafb3d4/memipokaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a74a02f-575c-42e4-be23-a139ebccca54/download_add_in_al_quran_microsoft_word_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5417211d-1d5b-4179-8c86-3001c370e053/28259015139.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ff94768-e5df-4244-9ea8-b92b5a6bfc4d/82959001937.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fddb5dbe-8442-4636-83e6-6d402facdcc7/96163918611.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce2a90e1-7db8-40dd-97c0-ce29681606d1/81414074680.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7de485f-cbe1-4d53-b0d5-a19d92d97587/52494305083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0754ab5-6c45-4a44-add2-1a5589c856fd/70435039997.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98dc85be-308a-4f6f-8ee1-a77b462277f3/how_much_does_the_average_square_bale_of_hay_weigh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7502185-4a55-4cb3-bd6f-b480f25901a6/vegan_stuffing_recipe_for_thanksgiving.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_off0000e5e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E9 5348 bytes
SHA-256: 712a3e85640a26da0486ccc9500417dcdae3cf82497304687b81d57dd9e2ba86
font_01_sfnt_off0000f818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF818 10220 bytes
SHA-256: 7939a0c722ace1eb9c0241f9412495e45fdbf998a92eff7cd6b1bbe729b657b8

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