Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a7cc1e9c8850953…

MALICIOUS

PDF

83.6 KB Created: 2021-03-24 04:43:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 23d82b2751705619c9a34f17b5187444 SHA-1: d61993ebd6a73b4ee76214e4d04cc15f5135e8aa SHA-256: 6a7cc1e9c88509538d9f2bcf8982e095414ede7452d263ca5d20a8318227209e
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 phishing site, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to lead the user to a malicious resource, likely for credential harvesting or further malware delivery.

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://dafemum.ru/strik?utm_term=what+is+a+safety+plan+in+construction
    • http://furniture21.online/jbl_charge_3_user_manualzfctw.pdf
    • https://cdn.sqhk.co/fefowofuk/jhDjcxv/dewekajupijuruwu.pdf
    • http://bluebadgeapproval.com/digovugakubaki3t4uw.pdf
    • http://xruhdfo.site/6990309759881yg4.pdf
    • https://cdn-cms.f-static.net/uploads/4454052/normal_5fe8179f92ad6.pdf
    • https://static.s123-cdn-static.com/uploads/4428033/normal_5ff0ce0fb1d1d.pdf
    • https://cdn.sqhk.co/zanotunuzi/m5dhfKa/rapuxojonumedezukojiwota.pdf
    • http://fartook.online/369244676041omnl.pdf
    • https://cdn.sqhk.co/dugelabomaw/5krifjh/iihf_wjc_2020_live_stream.pdf
    • http://reawont.online/panetuwinitumejukedujufty8.pdf
    • http://juwoniki.getenjoyment.net/i_want_to_break_free_chords.pdf
    • https://static.s123-cdn-static.com/uploads/4461207/normal_60062d8b6b71c.pdf
    • https://cdn-cms.f-static.net/uploads/4385020/normal_601ca1ce5eecb.pdf
    • http://tediwaxivuj.sportsontheweb.net/sujevodebivugune.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bajapovogam/zodumatuzaduxubetos.pdf
    • https://s3.amazonaws.com/pobixedele/sunbeam_heated_blanket_f2.pdf
    • https://s3.amazonaws.com/dazawojob/animated_clock_wallpaper_for_desktop_free.pdf
    • https://s3.amazonaws.com/jesidofefe/los_angeles_homeless_report_2019.pdf
    • http://xawiwevivuzox.onlinewebshop.net/types_of_candlestick_patterns.pdf
    • https://s3.amazonaws.com/kakekojezutok/zovepebobakulu.pdf
    • https://s3.amazonaws.com/jupudizadid/51653036813.pdf
    • https://s3.amazonaws.com/xokebore/88108963099.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_off000106ee.bin
c9df4c242ff85576b279da3fd9e982fe5a3af674c4f280053865f7252d5b0b27
pdf-font-stream PDF embedded font (sfnt) at offset 0x106EE 5216 bytes
font_01_sfnt_off000118c1.bin
58264faf775094880b35b4da9829f7a9453cf2fd9a348ff19d1db635c16508e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x118C1 11832 bytes