Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6c86e8672cfe170…

MALICIOUS

PDF

78.1 KB Created: 2021-03-30 23:12:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c58e51085b79e4d4eaf2ce86ba25e00f SHA-1: ac55a357e948988d437578fae85df950c14f3c20 SHA-256: a6c86e8672cfe17074944f0ae6e37881c6f45ff61be0c9630d78617eeb45586a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL 'https://maypoin.ru/123?utm_term=azure+icons+ppt' suggests a phishing or credential harvesting attempt disguised as a document related to Azure icons. Although no scripts were explicitly extracted, the PDF format and embedded URLs are commonly used to deliver malicious content or redirect users to exploit kits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/123?utm_term=azure+icons+ppt PDF link annotation
    • http://dakolozen.22web.org/26559217842.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376125/normal_5ff50d1211452.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372086/normal_5fe1011c9508e.pdfIn PDF document text
    • http://zeropium.com/love_story_album_yelawolfws5w6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454809/normal_600a52f0581e5.pdfIn PDF document text
    • http://fb-copyright-help-from.com/sig_sauer_p226_mk25_red_dot_sight7pe2e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421764/normal_60084b39d13d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384142/normal_605d39e20ec90.pdfIn PDF document text
    • http://nofovukad.iblogger.org/88623073275.pdfIn PDF document text
    • http://xuguxujew.iblogger.org/best_free_astrology_apps_for_android.pdfIn PDF document text
    • http://portkamesto.site/most_difficult_word_search_puzzleshwron.pdfIn PDF document text
    • http://xsale.trade/league_of_guessing7xhq0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416932/normal_5fca7c40d701d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426409/normal_5fe188f8a10ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473379/normal_5ff3913fdbb3d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fujadabez/savanazekezujebovew.pdfIn PDF document text
    • http://meridupomosim.epizy.com/20802338238.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/how_long_does_it_take_to_charge_motorola_walkie_talkies.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/relesuzojid.pdfIn PDF document text
    • http://bezixezejagu.rf.gd/95582874124.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e71e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71E 4608 bytes
SHA-256: 2943e487033c4bff881fea15f13301e1632cd3f9d785e283c0956af74919376e
font_01_sfnt_off0000f6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D7 10752 bytes
SHA-256: d6bc2c3a8a5443d315258e5d38d6d0026e3f735337229e8ab974ada20e866a17
font_02_sfnt_off00011b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B7B 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230