Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ca202372111fe91…

MALICIOUS

PDF

88.9 KB Created: 2021-03-18 04:35:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bae109cdbca15a2c35db4612f0979e3 SHA-1: 54bc70755a8aa615d7b3dfdc8eac0b5f0e9eb2e6 SHA-256: 3ca202372111fe91cb3e4127b151f55e9c63f122d57bd2c9e22cef52f03669c1
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and the document body, though heavily obfuscated, suggests a lure related to 'fantasy football'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of external URIs suggests the document is designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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://pelibifir.ru/strik?utm_term=how+do+you+play+fantasy+football+for+beginners
    • http://bamiluzigu.mygamesonline.org/cell_culture_media_market.pdf
    • https://cdn.sqhk.co/xubuzivo/giTgggd/41457413660.pdf
    • https://cdn.sqhk.co/noperizapewo/dhdVsjd/carve_pencil_art.pdf
    • http://tokudujadi.medianewsonline.com/dodge_ram_oem_parts.pdf
    • https://cdn-cms.f-static.net/uploads/4460255/normal_601151506a527.pdf
    • https://static.s123-cdn-static.com/uploads/4487423/normal_6002447c36158.pdf
    • https://cdn.sqhk.co/sikudile/hmRiiA9/14306156106.pdf
    • http://nuvoked.22web.org/tudamanugedixexig.pdf
    • https://cdn.sqhk.co/janurisu/JNicNTN/vortex_cloud_gaming_download_mod_apk.pdf
    • https://cdn.sqhk.co/bexefoboxevi/thafijo/pufuka.pdf
    • https://cdn.sqhk.co/daguvemet/gdhhP54/learn_basic_robotics_online.pdf
    • https://cdn-cms.f-static.net/uploads/4484365/normal_60192e52f003d.pdf
    • https://cdn-cms.f-static.net/uploads/4369766/normal_603bafab62cdc.pdf
    • https://cdn.sqhk.co/resozasevej/iaUWggs/53797420123.pdf
    • https://cdn.sqhk.co/rapowipijes/vjiXjXP/koaa_12525_live_status.pdf
    • https://cdn.sqhk.co/janonaset/M3hajat/29470906024.pdf
    • https://cdn.sqhk.co/rogudokives/hcQnfgj/xinavelimelame.pdf
    • https://cdn-cms.f-static.net/uploads/4451374/normal_5fe707275be06.pdf
    • https://cdn.sqhk.co/tinulafi/qhgsiaR/93249213508.pdf
    • https://cdn.sqhk.co/pupewudoj/g3QUdje/cisco_anyconnect_mobility_client_windows_10.pdf
    • http://kudopifupelixi.22web.org/choki_choki_mobile_legends_apkpure.pdf
    • https://cdn.sqhk.co/xawodoze/iieC1qn/peneketef.pdf
    • https://cdn.sqhk.co/pijajawopoji/gWinhi1/agent_orange_victims_vietnam.pdf
    • http://xoxosedefoxadu.mygamesonline.org/gasifikasi_biomassa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://retudazugo.rf.gd/38156282062.pdf
    • http://sefegotanekexe.rf.gd/lekalagosowuvimevijejawej.pdf
    • http://latosenepodukum.rf.gd/25401632900.pdf
    • http://rujidafedisezu.atwebpages.com/is_percy_jackson_in_the_lost_hero_book.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_off00011ccf.bin
cc8a74794f741d30572265c6f46eb679af0dac869089af5f4a4829a069805a45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CCF 5504 bytes
font_01_sfnt_off00012fae.bin
bc148c6152632165ee67d445d5ac5583acb462a09fe2429e88c396988ba52552		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FAE 11072 bytes

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