Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f7f06f6048eec3…

MALICIOUS

PDF

81.6 KB Created: 2021-03-19 21:29:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69b2c716cd44ee6ba4ea8dabb7b623b1 SHA-1: aac37ab097c3a7227f2bd581c5e1a9e96460ece2 SHA-256: 55f7f06f6048eec3c7f4e9c3cf07225179bfdf3f0e7283d3219b7b391ee03075
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains numerous external links, with one prominent URL suggesting a scam related to 'animal jam'. The presence of embedded URLs and the overall structure indicate an attempt to redirect users to potentially malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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
  • 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://ponafet.ru/wix?keyword=how+to+scam+easily+on+animal+jam
    • https://rimozaruminipa.weebly.com/uploads/1/3/5/3/135391391/didunek.pdf
    • https://sinepakeje.weebly.com/uploads/1/3/4/4/134490574/aeb8ce582d4c6.pdf
    • http://votixowet.22web.org/debenhams_bedding_fitted_sheets.pdf
    • https://static.s123-cdn-static.com/uploads/4366034/normal_5ffb98d248ae4.pdf
    • https://puxugewukuniw.weebly.com/uploads/1/3/4/4/134492634/0455409545842.pdf
    • https://fekugutupufug.weebly.com/uploads/1/3/4/8/134876907/xalerarerik_nelop_fuguvavomedowok_gasebam.pdf
    • https://static.s123-cdn-static.com/uploads/4488817/normal_5fe01771c2ac8.pdf
    • https://cdn-cms.f-static.net/uploads/4453721/normal_5fd779eac7393.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://587b455d-cc79-4428-8e80-a8b75ce23bca.filesusr.com/ugd/021ec8_fe02f0d4795849bcada0df333019a6f5.pdf?index=true
    • http://girodoge.epizy.com/honda_generator_parts_eu2000i.pdf
    • https://uploads.strikinglycdn.com/files/ba65af33-b072-49d0-9e93-cc445798e4cb/60823005651.pdf
    • https://uploads.strikinglycdn.com/files/f2ddd24e-3a2a-4ba3-b585-c01be85836b2/fender_vibro_champ_xd_5.pdf
    • https://s3.amazonaws.com/bolovopizonuki/us_government_calendar_2019.pdf
    • http://nulupoz.epizy.com/13064492587.pdf
    • https://22fea36a-5e19-4af1-b4aa-fe6e1efe0ee9.filesusr.com/ugd/b5a188_25a509ebd15e4008a62292f6359d06aa.pdf?index=true
    • http://kevatudoritek.rf.gd/bupebagupidub.pdf
    • https://8a833fea-7c9a-4d2e-a5a7-d3590f42a3e5.filesusr.com/ugd/9aab09_aa2f61a9024742c6a9c0f358f1eadb40.pdf?index=true
    • https://uploads.strikinglycdn.com/files/ab6910b0-6a1a-4ab2-9737-fe3c8c57171e/somezenederonajinusa.pdf
    • https://uploads.strikinglycdn.com/files/f2d43142-0835-4da3-b380-4dea45213c2f/fixipokazaz.pdf
    • https://s3.amazonaws.com/lekelepowo/medicare_benefits_policy_manual.pdf
    • https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_3c39b9b86a604daaaaf6e6c934a1d6c4.pdf?index=true
    • https://s3.amazonaws.com/gumagabu/nawevavafevudezuruz.pdf
    • https://uploads.strikinglycdn.com/files/8d391d3b-54b0-4438-8c6c-f1550261f8ab/how_to_get_a_provisional_license_in_sc.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
font_00_sfnt_off0000f2ad.bin
e21e5cb13948bf7b9a03770a8f0db6d27c06959baa6e1fbc08bcd57ac59fc117		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AD 4868 bytes
font_01_sfnt_off00010333.bin
2236ffafa07b25155e189a3727a6a0233598e33dfedbeff137ede2779f00b493		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10333 11192 bytes
font_02_sfnt_off0001295d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1295D 4324 bytes

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