Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdc29bacc0e7f5ab…

MALICIOUS

PDF

84.6 KB Created: 2021-03-28 09:19:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: e4452ee2bc7cec45bf80e034613804d7 SHA-1: e6343050e9ca79570ddcff05c0803d6124f4a7c6 SHA-256: fdc29bacc0e7f5ab340ddc8877e6b354c0518f3b5c2d9b66957473d97c217f79
176 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing or trojan delivery mechanism. The presence of numerous external links, many pointing to PDF files, suggests a link farm or a method to distribute further malicious content. The 'SE_CALLBACK_LURE' heuristic indicates the document likely prompts the user to call a phone number, a common tactic in phishing and tech support scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://druttle.ru/strik?utm_term=uniden+cordless+phone+turn+off+ringer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448126/normal_603c350387644.pdfIn PDF document text
    • https://cdn.sqhk.co/ranetixeba/ibABpjc/viromumesolozupovolab.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/nhJha6d/devedenu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404990/normal_60071e29b5dcd.pdfIn PDF document text
    • https://cdn.sqhk.co/fopikudapom/knYAuNH/madepomexige.pdfIn PDF document text
    • https://dinabowufijub.weebly.com/uploads/1/3/4/7/134751612/lokabefura.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491671/normal_6005ed4005fb8.pdfIn PDF document text
    • https://cdn.sqhk.co/xezafube/7jfianc/68294438224.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480886/normal_60248a1da9bc8.pdfIn PDF document text
    • https://cdn.sqhk.co/nebuwaxisiw/et4hgib/doctor_on_demand_mental_health_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/pifixijowoka/cdFgehe/rust_app_not_pairing.pdfIn PDF document text
    • https://cdn.sqhk.co/kunimanujage/sCjfhaC/fruit_ninja_old_version_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/lapitobexeva/jaiehfw/fekewi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479917/normal_601da84ee1575.pdfIn PDF document text
    • https://cdn.sqhk.co/junizafuzep/crtjdjh/bengal_tiger_telugu_picture_ing.pdfIn PDF document text
    • https://cdn.sqhk.co/vumojakizaw/ijjQgcO/free_online_graphing_calculator_ti_84_plus_download.pdfIn PDF document text
    • https://bewogataxatux.weebly.com/uploads/1/3/2/6/132695278/jojuvotoguves_wapogirokiso_wiwonopagu.pdfIn PDF document text
    • https://mogefitinovodug.weebly.com/uploads/1/3/0/9/130969954/vanalereraxi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gitipelut/xixafavariwan.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/52-week_money_challenge_peso_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/modern_technical_writing_andrew_etter_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/the_lord_of_the_rings_full_movie_download_in_tamil_tamilyogi.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC4 5196 bytes
SHA-256: e826f4e70a2a3d7cc28afefc4841d06795a5f5798fec9a9f2b76276c5cf831f3
font_01_sfnt_off00011e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E76 11256 bytes
SHA-256: 5c099ec33ae031969e7e199ea61a95cbed5f2b04e874419f0c74a1b8c6d23ecd

Open this report in the interactive analyzer, or submit your own file for analysis.