Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e4f713c5d02898b…

MALICIOUS

PDF

87.5 KB Created: 2021-04-04 12:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78c493dd3bb2b7355fc73adcb880c99f SHA-1: ebb1e287a65cc30eb168700851299721bf639c5d SHA-256: 9e4f713c5d02898b619077135c2ff89dbe4834aedda475ca7d8f905df32925d3
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1190 Exploit Public-Facing Application T1204.002 Malicious Link

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's an advance-fee scam lure. The document body, though truncated and partially garbled, contains references to 'Ayushman bharat yojana registration form pdf download', suggesting a phishing pretext. The presence of numerous external links, including one to 'vilenefex.ru', points towards an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://vilenefex.ru/award?keyword=ayushman+bharat+yojana+registration+form+pdf+download
    • http://xadexawufomovi.sportsontheweb.net/nibive.pdf
    • https://cdn-cms.f-static.net/uploads/4380854/normal_6045d8a05477b.pdf
    • https://static.s123-cdn-static.com/uploads/4460725/normal_5feb60797fe54.pdf
    • http://retapadu.medianewsonline.com/autocad_lt_2019_computer_requirements.pdf
    • http://zakewabo.scienceontheweb.net/alternating_current_fundamentals_8th_edition.pdf
    • https://cdn-cms.f-static.net/uploads/4387031/normal_602eac87f1ef0.pdf
    • https://cdn-cms.f-static.net/uploads/4410432/normal_600db9e04a6d2.pdf
    • https://fegemuvu.weebly.com/uploads/1/3/2/6/132695633/2235019.pdf
    • https://sopepulur.weebly.com/uploads/1/3/5/3/135311067/juwalagisanofep.pdf
    • https://vojawozusuv.weebly.com/uploads/1/3/1/1/131164351/siwekufogu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://uploads.strikinglycdn.com/files/3c90454a-b70a-42fa-b6df-46df7f00fe0b/sat_prep_miami.pdf
    • https://s3.amazonaws.com/gofilafixu/apache_ant_1._7._0_free.pdf
    • https://uploads.strikinglycdn.com/files/4f03d8e4-5c51-4bdb-b2f2-d4ee4a32ec1a/lejevagumukifomutiju.pdf
    • http://guwaxilajoxeza.onlinewebshop.net/symptom_severity_scale_carpal_tunnel_syndrome.pdf
    • https://uploads.strikinglycdn.com/files/83e77f13-6a21-4ac8-9948-f295f4a0ac49/58244255335.pdf
    • https://s3.amazonaws.com/loneminovu/describe_your_dream_job_interview_answer.pdf
    • https://s3.amazonaws.com/gekojulog/vampire_diaries_season_8_episode_8_watch_online_123movies.pdf
    • https://s3.amazonaws.com/dobikasukavu/ipcc_1._5_report_upsc.pdf
    • https://s3.amazonaws.com/zaxuledo/jatadhari_bhole_bhandari_ringtone.pdf
    • https://uploads.strikinglycdn.com/files/584f63c6-8432-471b-82f5-c06fa52badab/bajopidadudivuzigupodoro.pdf
    • https://s3.amazonaws.com/pajeriramal/12830388093.pdf
    • http://nazowovemozugiv.myartsonline.com/45637712360.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efe9.bin
89ca4643f5da110b90cd1a4122ec8be5ef67454698540caefe48727ad7632dc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE9 5856 bytes
font_01_sfnt_off000103c3.bin
e1aaac00995873c2629845beecf1cb1260923dcede67b3df6b7cc03e3a64df18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103C3 10740 bytes
font_02_sfnt_off00012872.bin
461a1578f80084b2f2ca998a6e716936969cc9b33b2976d66eaaa57f6abee57a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12872 16172 bytes
font_03_sfnt_off00013dcb.bin
6a4e591b4a668c2c92c9ff20a024968f24b0413052871e32f793750f79addf98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DCB 4196 bytes

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