Malicious PDF — malware analysis report

Static analysis result for SHA-256 90583d79a4c9ddb6…

MALICIOUS

PDF

78.5 KB Created: 2021-03-25 07:08:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 3af88cf9121b0e866969623476014239 SHA-1: 212adc313b9bc69b8eb467af3cd90db4b7a0602b SHA-256: 90583d79a4c9ddb6883ca853d8a0866b6fddb4ba5dafc6363411190e89ccc430
134 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document utilizes a link farm strategy with numerous disposable hosts, including weebly.com and sqhk.co, to distribute what appears to be a movie download lure. The embedded URLs, such as 'https://maypoin.ru/wix?keyword=fantastic+mr+fox+full+movie+in+hindi+free+download', are designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=fantastic+mr+fox+full+movie+in+hindi+free+download PDF link annotation
    • https://vuteduwezo.weebly.com/uploads/1/3/4/3/134336695/3890638.pdfIn PDF document text
    • https://cdn.sqhk.co/tebefaravuz/hczhchb/city_racing_3d_game_download.pdfIn PDF document text
    • https://wukemurorafol.weebly.com/uploads/1/3/4/3/134338373/fb925403ee.pdfIn PDF document text
    • https://wijuluberaselak.weebly.com/uploads/1/3/4/0/134016921/dobuvabita.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/actron_cp9135_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/malofavu/ijheDCv/kibexubijisipulezif.pdfIn PDF document text
    • https://cdn.sqhk.co/pidefatop/RX8nhj5/parefuwikogonujedo.pdfIn PDF document text
    • https://xelegiri.weebly.com/uploads/1/3/4/4/134435730/gitukufuwuxot_gulofebali_fugojeki_weludunipidal.pdfIn PDF document text
    • https://medotufise.weebly.com/uploads/1/3/4/5/134512565/zaxerinelofika.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410016/normal_60329790293fa.pdfIn PDF document text
    • https://pulapafux.weebly.com/uploads/1/3/0/8/130874232/woxugijufonu.pdfIn PDF document text
    • https://wokopapun.weebly.com/uploads/1/3/5/3/135388848/doduverudunaj_vepexatel_pasoxi_xagedufirit.pdfIn PDF document text
    • https://cdn.sqhk.co/geroterunetu/FhjgDhd/ctu_counter_terrorism_unit_requisitos.pdfIn PDF document text
    • http://bulepozobagepud.mygamesonline.org/cambridge_audio_dacmagic_plus_manual.pdfIn PDF document text
    • https://fixaporaxaju.weebly.com/uploads/1/3/1/4/131413905/2fe0ecc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425917/normal_600e0dc2d6a1b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wugujub.onlinewebshop.net/tigujibamepo.pdfIn PDF document text
    • http://fuvogixerad.epizy.com/62157228151.pdfIn PDF document text
    • http://kofakaduwa.rf.gd/48717290466.pdfIn PDF document text
    • http://wobadumiravolu.atwebpages.com/55456047567.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_off0000f3c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C4 5436 bytes
SHA-256: 4d18ff5f6c96c5fe9d1f5a6103af984e9247cecda1a4a44f1393e9fc173205db
font_01_sfnt_off0001062b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1062B 11192 bytes
SHA-256: e5b9f720da28bbf83d9db15a2693729db7c5f3104467b6f996e797fead62310a

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