Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a8555b8e796782…

MALICIOUS

PDF

93.2 KB Created: 2021-03-25 09:17:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bfbc96253c4f38b89dd2ae3066f5ed9 SHA-1: d1744feefbbeb87903c5f7bb73b3162398a0eea5 SHA-256: d4a8555b8e796782633a4fcdcc0351917873c0e2be858ca8f5960302162240d9
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of an external URI suggests the document is designed to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://seumenha.ru/wix?keyword=innamorati+nella+commedia+dell%2527arte
    • https://cdn-cms.f-static.net/uploads/4465396/normal_6015111a72a27.pdf
    • https://cdn.sqhk.co/jutalufelex/VjegCgg/77304488002.pdf
    • http://nusixogej.iblogger.org/pevekewovabozova.pdf
    • http://magexaxajatadog.getenjoyment.net/93142479014.pdf
    • https://cdn.sqhk.co/nujidegowupi/YBxYhdK/xabeladazifunap.pdf
    • http://help-igcopyright.xyz/92013950720q4qyo.pdf
    • https://static.s123-cdn-static.com/uploads/4413986/normal_5fcdd9e3a4723.pdf
    • https://cdn.sqhk.co/dinigivo/lM5Bbgf/past_future_punjabi_song_mp3_download_djpunjab.pdf
    • http://skidki-day.shop/police_car_coloring_pages_online2mj57.pdf
    • http://paktum.pro/80144220631e5cyq.pdf
    • https://cdn-cms.f-static.net/uploads/4482191/normal_5fd93a5a201e4.pdf
    • https://cdn-cms.f-static.net/uploads/4376086/normal_60108d4a50442.pdf
    • https://cdn.sqhk.co/suwapipejob/cjdSjhz/chhaliya_song_320kbps.pdf
    • http://csxmoney.info/2559311657965nnn.pdf
    • https://cdn-cms.f-static.net/uploads/4371799/normal_60246d60152c2.pdf
    • http://hesap-al-sat.com/glute_strengthening_exercises_for_runners8loal.pdf
    • http://nokuxitajorox.22web.org/ny_times_crossword_answers_9_13_19.pdf
    • http://nekuwagibajese.getenjoyment.net/singular_and_plural_nouns_list.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xulaxun.rf.gd/zabaso.pdf
    • http://nakosaf.rf.gd/what_toppings_go_with_white_sauce_pizza.pdf
    • https://676a7a22-5bec-432e-92e0-9d4a0a27851c.filesusr.com/ugd/a1fb72_7b5012fa5e914d27893395d54e7c8b4b.pdf?index=true
    • https://d4f4546a-a836-4b3d-8651-c56b89608eca.filesusr.com/ugd/3e9e83_f57bc4c9c52f4fe48df8db1a186a8047.pdf?index=true
    • https://113c517c-d7b0-4b36-99d7-6722bcb7ef36.filesusr.com/ugd/8e66a5_99bad02d24c54a4f94c27c2daa70faac.pdf?index=true
    • https://8ecf7690-1f99-4e28-a4b6-3228ba9731d7.filesusr.com/ugd/63d3ad_7084719fee9d4065a948feaef08325c0.pdf?index=true
    • 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012270.bin
0a01c636505c5cdfb6e7a18c9088e1e7ef7da71c99f6594b7ceae21f76c81c14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12270 3200 bytes
font_01_sfnt_off00012dc5.bin
488bad7a2a30b0c2dc5abb3a5cc6a390e1bcb89ee27bb408aee4e39e2a806b40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DC5 4876 bytes
font_02_sfnt_off00013e46.bin
77e6f3919bd02a42b412612246da870a3cba61acaf2e4a4894023865d001cfe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E46 12056 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.