Malicious PDF — malware analysis report

Static analysis result for SHA-256 841e26d473360d38…

MALICIOUS

PDF

83.3 KB Created: 2021-03-30 19:44:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65ad47f1525f01e0c22f0f5e516984a5 SHA-1: 95701831c2976f4ce03c3090f6bd548cbc005657 SHA-256: 841e26d473360d38732264ebd9557fcaac24f3082dfd016608c2e508530f4ce2
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains embedded URLs, one of which is `https://lozipotod.ru/123?utm_term=biodata+for+job+application+format`, suggesting a phishing lure related to job applications. Although no scripts were explicitly extracted, the PDF structure and embedded URIs indicate it's designed to redirect users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/123?utm_term=biodata+for+job+application+format
    • http://xevojifixifepi.scienceontheweb.net/apex_code_developer_s_guide.pdf
    • http://dawexefif.getenjoyment.net/the_science_of_cooking.pdf
    • https://fekanarikivokil.weebly.com/uploads/1/3/4/8/134884633/lubobusulivuxi-kotebixavuko-soxumomexu-ratotarakiv.pdf
    • https://cdn.sqhk.co/wigatozaduw/hitagf2/old_school_runescape_fish_stall.pdf
    • http://mimivudarevi.scienceontheweb.net/drama_script_on_dowry_system_in_english.pdf
    • https://lagisarer.weebly.com/uploads/1/3/4/1/134131240/5416285.pdf
    • https://cdn.sqhk.co/tamejenonisi/aDnITid/fashion_story_game_download.pdf
    • https://sibetufubexab.weebly.com/uploads/1/3/2/7/132712005/3b22298.pdf
    • https://cdn.sqhk.co/felebamifuk/ihe9Q3f/80429017296.pdf
    • https://cdn.sqhk.co/noruwotil/fjegdPU/birthday_party_dance_songs_free.pdf
    • https://sudazevoj.weebly.com/uploads/1/3/1/4/131406082/76000747cc1fe1.pdf
    • http://groby-ritual.online/86890906431mwsxz.pdf
    • https://cdn.sqhk.co/wubunepan/ijchdha/8583656700.pdf
    • http://lastasked.com/omron_bp652_7_series_blood_pressure_wrist_unit_manual6l9z5.pdf
    • http://biletak.iblogger.org/storm_brigid_kemmerer_espaol.pdf
    • http://ighelpcenter.xyz/trimble_business_center_download_2.8yfcfg.pdf
    • http://poverkavoda.website/olympus_vn-7200_change_playback_speedkyp2g.pdf
    • https://cdn.sqhk.co/vuwipabobatu/a7rNig4/chocolate_cookies_recipe_easy_bbc.pdf
    • http://trackengine.host/lifetime_44_basketball_system_reviewedizx.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wazilopuwifelig.epizy.com/buzaxukugurazu.pdf
    • http://kixavukuwowaz.rf.gd/93295607227.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_off00010556.bin
ed81ffd092f71346db29d2dda9f55635b0a217cee407533ba68b71364aedaa53
pdf-font-stream PDF embedded font (sfnt) at offset 0x10556 5388 bytes
font_01_sfnt_off0001179d.bin
af394d43f3c6644c0be877f6c0c774152e688c7a5357fa965b84c8942c31aa05
pdf-font-stream PDF embedded font (sfnt) at offset 0x1179D 11296 bytes