Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b3faf5e6111898a…

MALICIOUS

PDF

106.0 KB Created: 2021-03-31 07:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb5a90a4271a22238a25ed70962da77d SHA-1: 760ed2b7946da8a4a53f558176507910148a8bb5 SHA-256: 6b3faf5e6111898a7f10276c402490765ecc8246b79fd8a9e044a47ba322fedb
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a phishing lure designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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/aws?utm_term=socio-cultural+environment+meaning+in+urdu
    • http://daimontimur.org/konosize9mlco.pdf
    • https://cdn.sqhk.co/dabozijide/aF2fsRG/98707959101.pdf
    • https://cdn.sqhk.co/savadapo/1geK5Le/flange_bolt_size_chart.pdf
    • https://cdn.sqhk.co/manigonodapu/bgecPhb/supernatural_series_14_episode_guide.pdf
    • https://cdn.sqhk.co/xavaxonad/cXEih6M/7947089626.pdf
    • http://agencymedia-ig.com/frases_del_mundo_de_sofia_por_capitulos9gscv.pdf
    • http://unosital.space/perbedaan_teori_motivasi_maslow_dan_herzbergivy3l.pdf
    • https://cdn.sqhk.co/duxajoje/KK1NHic/28287283112.pdf
    • http://difipalilif.scienceontheweb.net/78476087405.pdf
    • http://tejowigasinafu.getenjoyment.net/what_spices_are_in_togarashi.pdf
    • http://vigastlens.xyz/xosiduvezakobukijewuwazeiurlv.pdf
    • http://lelekelosutov.getenjoyment.net/gopivadamex.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • http://www.opentle.org
    • http://xuwinesesat.epizy.com/free_download_ethiopian_amharic_books.pdf
    • http://relipig.epizy.com/wifideziw.pdf
    • http://kesolimasakifi.myartsonline.com/detowime.pdf
    • http://rajomijal.rf.gd/past_tense_present_tense_future_tense_table.pdf
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • http://scripts.sil.org/OFL
    • http://www.gnu.org/licenses/gpl.html

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00016cc9.bin
daaa36cd4e135c058fb88f918bb1090e4f08110157413f5deeaf93787b9d36c4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16CC9 18764 bytes
font_00_sfnt_off0000e842.bin
caeed39893b82969c26dfcac95946a3fad4fbae0765b3ea81aa15456cfe783a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE842 5684 bytes
font_01_sfnt_off0000fc1d.bin
28682ca43ea25f5c527f5e58c473ee0e9c88f8a448896d6fe731ef063512f659		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC1D 5276 bytes
font_02_sfnt_off00010e01.bin
1620336da6018abf771a3b64a4739dbc5cc5761e5bcfd31f9568e9163b5e6178		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E01 2656 bytes
font_03_sfnt_off00011908.bin
6d897259d7ab9db79b0dbb16904cd99ff486aa7f4a475590a5d3e44eab6e0eed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11908 2328 bytes
font_04_sfnt_off000123be.bin
b3976ad28991401f3a7e0d936621f3963ed8fd81aff5bedc9e25cf6548b1959b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123BE 2108 bytes
font_05_sfnt_off00012d89.bin
c8cb303e765c67f43d6d34f29c1d02953890772ff7b697be779fb29335000f72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D89 6640 bytes
font_06_sfnt_off00013f28.bin
f27f2d57949d87347f593b0af7af6283bb26a75a7a9370a4965c749435e74c60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13F28 15004 bytes
font_08_sfnt_off00018b10.bin
333cf0bae5291019b79d77a37696b89786718dc77a0e6f1c7356514a48765311		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18B10 3276 bytes

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