Malicious PDF — malware analysis report

Static analysis result for SHA-256 44271c4ae60e3046…

MALICIOUS

PDF

78.6 KB Created: 2021-03-11 16:39:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fe7b5a60c056d59466f48745b153b7b SHA-1: dafdb50b983a50d6af8fd620febe019708bcb155 SHA-256: 44271c4ae60e3046cc31532dbc16dfc8738b5f04a926a773c993282f7311db5b
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a suspicious domain, identified by heuristics as an external URI and flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'Bosch door hinge template kit'. The presence of embedded URLs and the overall detection by multiple security tools 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://soxebez.ru/123?utm_term=bosch+door+hinge+template+kit
    • http://zitalogeloluwiw.mygamesonline.org/dugasumosomexewekiw.pdf
    • http://vuvuga.xyz/foludetaguotx.pdf
    • http://fesotisifofil.mygamesonline.org/gabufe.pdf
    • https://cdn.sqhk.co/jesovolavig/hh29jdQ/xonix_3d_download.pdf
    • http://nout-prodat.site/96092181789w21f1.pdf
    • http://podeves.xyz/97726863741ki16s.pdf
    • http://xisumagogali.getenjoyment.net/90803663014.pdf
    • https://cdn.sqhk.co/kafexobesa/jhjbhe6/jadanuzenovoxelim.pdf
    • http://mutujejeturuduf.medianewsonline.com/potaka.pdf
    • https://cdn.sqhk.co/kejofuvata/uxyiihf/popokod.pdf
    • https://cdn.sqhk.co/judebivon/xpojahb/sikarebazadibeboxenixat.pdf
    • http://keepqifi.space/how_to_check_if_a_gmail_account_name_is_availableeumae.pdf
    • https://teraxamexad.weebly.com/uploads/1/3/1/3/131380600/rexuwukakoga-bikadojaxesore.pdf
    • https://rajilogibakew.weebly.com/uploads/1/3/5/3/135326989/426926f.pdf
    • http://lamejix.scienceontheweb.net/addition_word_problems_grade_1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wokarodefi.onlinewebshop.net/twilight_2008_in_hindi_dubbed_free_download.pdf
    • https://cad90261-f038-4e8a-b384-2e0e37e6cb8c.filesusr.com/ugd/4c4e45_7d949e42251842c992f0428daddb18ca.pdf?index=true
    • https://bb491b24-4c81-4ccc-8daa-bf1baeb171c2.filesusr.com/ugd/93c935_aebef3ef7a5c43cea85533b6df058ab8.pdf?index=true
    • https://cb5a1bef-7d05-4463-9361-9dceb4a497f4.filesusr.com/ugd/b13fd1_251241a9d73646c89da6c27840702d4f.pdf?index=true
    • http://zikoliduxa.atwebpages.com/bbg_beginner_free_download.pdf
    • http://vajapojaperusu.myartsonline.com/what_is_burger_sauce_made_of_uk.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5a4.bin
e28eb2e0b4098946d458e87544551df2ce05d78f9a2c55e27269ea2000f5fe31
pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A4 5600 bytes
font_01_sfnt_off00010882.bin
abd57e710af6e036d056969fae095aff40a6ccd09193c82df8824e59783a1eed
pdf-font-stream PDF embedded font (sfnt) at offset 0x10882 10740 bytes