Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04983f6caf3533e…

MALICIOUS

PDF

77.5 KB Created: 2021-03-17 19:16:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86e29e7ef521178b4fee6717ccdf416e SHA-1: 82599aabd1d3d6303ff9927de67d9993b60cc45c SHA-256: d04983f6caf3533edd9030bfdb80488f53723e52cb78a33fafc91bb0c7191a4f
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan. The embedded URL `https://soxebez.ru/wix?keyword=what+words+that+start+with+lox` suggests a phishing or social engineering lure. While no scripts were explicitly extracted, the PDF structure and ML classification indicate malicious intent, likely to redirect the user to a malicious site for further exploitation.

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/wix?keyword=what+words+that+start+with+lox
    • https://xaredoluvowa.weebly.com/uploads/1/3/1/8/131871785/volekunafabofav.pdf
    • https://cdn.sqhk.co/muzipajat/1zHjcgg/barracuda_email_security_gateway_400.pdf
    • http://italiabeach.space/2008_jeep_wranglers_for_salegimm6.pdf
    • http://fitness1.space/envision_algebra_1_enrichment_answers2idvo.pdf
    • https://cdn.sqhk.co/pifixijowoka/cUjbagc/puzz_3d_disney_castle.pdf
    • https://cdn.sqhk.co/bidamasegom/hcYjjlK/wafaxasugemixulezuzuj.pdf
    • http://montana-media.com/child_care_services_employment_verification_formrf8w1.pdf
    • https://cdn.sqhk.co/jetobatu/bjhK8qK/61286699754.pdf
    • https://raxipufed.weebly.com/uploads/1/3/4/4/134474150/lekukolizubob.pdf
    • https://cdn.sqhk.co/kufusivekogo/iGjehfr/history_of_religion_in_africa.pdf
    • https://sisasava.weebly.com/uploads/1/3/0/7/130738988/melatufidu.pdf
    • http://microdigitalmeter.xyz/cien_aos_de_soledad_frases_lluviazz2dm.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fejiremow.epizy.com/aromatase_inhibitors_in_breast_cancer.pdf
    • https://s3.amazonaws.com/laginekux/77532034698.pdf
    • https://s3.amazonaws.com/gajabedafot/gonevugomovopunoba.pdf
    • http://wutireliwuz.epizy.com/what_are_birds_trying_to_tell_us.pdf
    • https://s3.amazonaws.com/gajabedafot/diablo_2_guide_reddit.pdf
    • http://mujozigimak.rf.gd/juzakotanerozepe.pdf
    • https://s3.amazonaws.com/nemafu/honeybee_steam_powered_giraffe_piano_sheet_music.pdf
    • https://s3.amazonaws.com/verirejon/18985334695.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_off0000f443.bin
daada571f3c533c6767af20e1351ea8b9982c4e9aa29a04eb1d06e757d7fae31
pdf-font-stream PDF embedded font (sfnt) at offset 0xF443 5088 bytes
font_01_sfnt_off000105a3.bin
f4d7f3f44a28713d8b3b81784c304f8a511ff4eef283b2a6af6e78fbf79aadea
pdf-font-stream PDF embedded font (sfnt) at offset 0x105A3 10320 bytes