Malicious PDF — malware analysis report

Static analysis result for SHA-256 f044871352abb523…

MALICIOUS

PDF

135.2 KB Created: 2021-03-03 15:15:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b5be27d0b782cce17a7b2eb965d560e SHA-1: 2ff4565d75b78329c478d29f7edbadc46e20db21 SHA-256: f044871352abb523dbb162fd011d2523e7b74cbda123a1e4f972b0ae9a77a66f
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains multiple embedded URLs, with the primary one being 'https://botokaw.ru/123?utm_term=one+punch+man+road+to+hero+garou', likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to 'One Punch Man', suggesting a lure to attract victims. No scripts were extracted, but the presence of external URIs and the ML detection strongly suggest a phishing attack.

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://botokaw.ru/123?utm_term=one+punch+man+road+to+hero+garou
    • http://kuxogajow.iblogger.org/70644523494.pdf
    • https://cdn.sqhk.co/mugegiduveb/aichcgf/54303976334.pdf
    • https://cdn.sqhk.co/lakabarobuk/fgjY9hh/28374416879.pdf
    • https://cdn.sqhk.co/rodesedaded/vCT4hbf/renew_teacher_assistant_certification_texas.pdf
    • http://faxozulakevosos.iblogger.org/chura_ke_dil_mera_song_ringtone.pdf
    • http://maxobujixeweden.sportsontheweb.net/how_to_use_camera_to_translate.pdf
    • https://cdn.sqhk.co/mapetidul/ejyPidx/xokikizinefulopovopijomax.pdf
    • https://cdn.sqhk.co/nedovipirumu/Yji2hcc/afterlife_heaven_vs_hell_pc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kujesulad/kaala_bhairava_photos.pdf
    • http://jimarol.myartsonline.com/24079803469.pdf
    • https://s3.amazonaws.com/makumapikeze/nefaranowataxuwifaror.pdf
    • http://pesuvomekujidi.rf.gd/bfa_classic_engineering_guide.pdf
    • http://notijukigexu.rf.gd/carolina_ale_house_drink_menu.pdf
    • http://jumepenitujox.atwebpages.com/xavivokuzi.pdf
    • http://kubufubudigag.epizy.com/augmented_reality_apps_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00016d05.bin
2f0b015de89fa752001fa202ff169f164d7ec58e9c04431de40e5004b651f7fe
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16D05 34444 bytes
font_01_sfnt_off0001d758.bin
24018560db044755a3d1a9d794a26a24e92447bd0b5d8d84ab41896ade19b8da
pdf-font-stream PDF embedded font (sfnt) at offset 0x1D758 5304 bytes
font_02_sfnt_off0001e932.bin
e752a6cddee1b87c235ea84ce3fb187819a8428262d567c25aabc62f7e37189a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1E932 11464 bytes