Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad9e415079c3c82f…

MALICIOUS

PDF

88.8 KB Created: 2021-03-19 16:10:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c1f855a3898f358c30425f160e4f416 SHA-1: 5604c79167c2267ff612854f1eb68afe814f57b7 SHA-256: ad9e415079c3c82f6541aea47708d4fe39a463c4b775d1e9055dca0989cbc283
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple detection engines, including ClamAV and an ML classifier, as malicious. It contains an external URI pointing to a suspicious domain, likely intended to host a phishing page or malware. The document body, though heavily obfuscated, appears to be a lure related to 'Kepler s laws of planetary motion pdf'. No scripts were extracted, but the presence of embedded URLs and the high detection scores indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/award?keyword=kepler+s+laws+of+planetary+motion+pdf
    • https://nasuvanebi.weebly.com/uploads/1/3/5/3/135393195/3db362.pdf
    • https://tejukikefuxod.weebly.com/uploads/1/3/4/7/134703803/b55b252dcf750f.pdf
    • https://cdn-cms.f-static.net/uploads/4485450/normal_6046e6e054686.pdf
    • https://cdn.sqhk.co/padasagam/i5M3ib5/likert_scale_examples_helpful.pdf
    • https://cdn.sqhk.co/lolumebitana/upieuKn/gba_emulator_free_online.pdf
    • https://static.s123-cdn-static.com/uploads/4413239/normal_5ff7bb835d2f1.pdf
    • https://ratofesut.weebly.com/uploads/1/3/5/3/135304008/nuzoj_xaferox_gekutesumiwowed_rasuko.pdf
    • http://canlisohbetim.net/fefisaworefobaa7tj.pdf
    • https://cdn-cms.f-static.net/uploads/4408862/normal_6040be634011c.pdf
    • https://kusopexel.weebly.com/uploads/1/3/4/5/134526262/rozolumomefana.pdf
    • https://cdn.sqhk.co/jurugaguvedu/B4MwifF/bowlinfinity_bowling_ball.pdf
    • https://cdn-cms.f-static.net/uploads/4409411/normal_6036142e037d5.pdf
    • http://lasleymarkt.ru/napafibndn9i.pdf
    • https://static.s123-cdn-static.com/uploads/4473410/normal_5ffef89aec7b6.pdf
    • https://cdn-cms.f-static.net/uploads/4421970/normal_603093ff9406f.pdf
    • https://cdn-cms.f-static.net/uploads/4391013/normal_5fdb2bc15414e.pdf
    • https://dusomekekonipa.weebly.com/uploads/1/3/4/5/134580960/xisitovope-madoterevolujez-kavesiji-xozakisulud.pdf
    • https://mevemedetu.weebly.com/uploads/1/3/1/8/131871578/69b2dc.pdf
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/xubuwelab_xidabos_lugagurat.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000106dc.bin
ea293fc5c8aaa827c8b6f5d70ff655ee0b26d7ce54916d274e96f45fbaa88525		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106DC 5352 bytes
font_01_sfnt_off00011916.bin
d60d546d035a582b2499eec68fde7ea17bcb94a628d3e65c58cb343c27a46783		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11916 11732 bytes
font_02_sfnt_off0001414e.bin
149cab45689013e99d1aa520d2e5234663aa5d8577b6aae5e423b5d60aeda4c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1414E 16036 bytes

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