Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c12081c3451cabb…

MALICIOUS

PDF

79.1 KB Created: 2021-05-05 20:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3e9ef5d5bba9be890a8e029800e6d160 SHA-1: ccf8a29ca306141cf6eb1b9c8ce1bc8d734e725a SHA-256: 9c12081c3451cabb6bcd5addb5004f572de29b6fcb9c3385031084a7d68cf088
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://zajinet.ru/strik?utm_term=noun+exercise+for+class+6+icse PDF link annotation
    • https://cdn.sqhk.co/runudori/j5jchd6/how_to_make_fancy_slime_easily_without_glue.pdfIn PDF document text
    • https://cdn.sqhk.co/kanemili/lh7jfwy/werewolf_protecting_girl.pdfIn PDF document text
    • https://cdn.sqhk.co/miwizawi/jbOxhek/55579805587.pdfIn PDF document text
    • https://cdn.sqhk.co/deloreba/Kzgkrii/mikecrack_canciones_diamantito_1.pdfIn PDF document text
    • https://cdn.sqhk.co/purawewus/jfe39gh/terranova_church_vbs.pdfIn PDF document text
    • https://cdn.sqhk.co/sugigevapure/2CN1Fii/87431064558.pdfIn PDF document text
    • https://cdn.sqhk.co/talokelom/fr1GjiL/dovejuzufafawo.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/fpjgien/78150215486.pdfIn PDF document text
    • https://cdn.sqhk.co/wukufazujuv/ghgezle/apple_podcast_player_embed.pdfIn PDF document text
    • https://cdn.sqhk.co/najafizox/g2DYvgu/jujanipikaruwuwe.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/Yhahblg/stock_market_investment_tracker_excel.pdfIn PDF document text
    • https://cdn.sqhk.co/difakezil/dErjcgf/love_songs_ringtones_telugu_lo_download.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwasokeg/ichaktK/210_shot_balls_of_fire.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/nagudo/29017051897.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/kevuxoxijosed.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/google_partner_badge_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/gree_air_conditioner_remote_control_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/android_clear_stored_passwords.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/samsung_rf268abrs_control_panel.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/color_accent_editor_android.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e84d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84D 4868 bytes
SHA-256: b54ec0fe0f66389ff835c2a7a3036f13ff75be33dcf1bb0e955ccf4da5593b07
font_01_sfnt_off0000f8e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E9 11836 bytes
SHA-256: f066205d459127abb3b75aff6b4e753f338c12d9a7327ea8723c051d0652fd07
font_02_sfnt_off00012094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12094 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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