Malicious PDF — malware analysis report

Static analysis result for SHA-256 1568429f3a72c2a0…

MALICIOUS

PDF

76.6 KB Created: 2021-02-19 21:49:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: a5f6f1e9ffb1328484d352f49ed3a937 SHA-1: c7a7dbcb698a1c797ffa0bb1e23b4aa92e249dd8 SHA-256: 1568429f3a72c2a0d240bef126cc1aeae334565ee9f5bba76a58b6b3e296af2d
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 URL that directs users to a site disguised as a product user guide, likely a social engineering lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

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://druttle.ru/wix?keyword=pocket+juice+4000mah+user+guide PDF link annotation
    • http://girlita.space/happy_birthday_song_tamil_movieqjxnk.pdfIn PDF document text
    • http://pedalini.club/java_calendar_format_utc1v3v4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445573/normal_600f80c395430.pdfIn PDF document text
    • http://criticcxck.space/cheat_engine_6.3_softonic_downloadapdap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478685/normal_600c7e861a316.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369163/normal_60027330e2505.pdfIn PDF document text
    • http://euromarket.pro/cakewalk_sonar_full_versionqnvqm.pdfIn PDF document text
    • http://labiosdewonda.com/bollywood_old_movies_listghujj.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
    • http://jozopon.rf.gd/finding_interior_and_exterior_angles_of_polygons_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/90613778317.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/10157368891.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/kogadafuxazuwex.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/gemewotijodasifodewofuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/carothers_performance_knives_hdfk.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/full_movie_free_tagalog.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_off0000e2a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A4 5468 bytes
SHA-256: 35eb1c33efa75a93520e63d2da764c46b8888c31aaa3cfbad5ab7efcd4609bce
font_01_sfnt_off0000f53d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF53D 9952 bytes
SHA-256: 3672625cd41838f029e27e590633b02412172ed11cd220b4e413be342e0d852b
font_02_sfnt_off00011741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11741 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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