Malicious PDF — malware analysis report

Static analysis result for SHA-256 e006675bab51e2e5…

MALICIOUS

PDF

80.4 KB Created: 2021-03-18 04:32:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8ff2afbd0057b9763514b88e118fe46 SHA-1: 93740e3691813b56e73577ea1f9856a8908feeb9 SHA-256: e006675bab51e2e5744d08d1e3ed8b255f8d79a5bcc6715b0688cc9901789006
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO link farms and phishing. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's content is designed to trick users into believing they are owed money or a prize, requiring them to click a link to claim it. The presence of embedded URLs and the ML classification further support its malicious nature, likely leading to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/wix?keyword=controls+for+nba+2k15+ps4+my+career+offline+glitch
    • http://lulopoboxefon.scienceontheweb.net/what_are_the_natural_sources_of_atmospheric_carbon_dioxide.pdf
    • https://cdn-cms.f-static.net/uploads/4401517/normal_5fe62cf7ba353.pdf
    • http://lopitimew.mygamesonline.org/dejozaxu.pdf
    • https://kiluzamomumu.weebly.com/uploads/1/3/5/3/135344913/mulekufivigupa-tatirag.pdf
    • https://static.s123-cdn-static.com/uploads/4421969/normal_60057487efbd5.pdf
    • https://naduvita.weebly.com/uploads/1/3/5/9/135973463/sopolu-bipekivawe-kapekebaluniw.pdf
    • https://cdn-cms.f-static.net/uploads/4495040/normal_601f999aacb88.pdf
    • https://cdn-cms.f-static.net/uploads/4380674/normal_602ad0fb24ccc.pdf
    • https://cdn-cms.f-static.net/uploads/4374986/normal_601e358ec4d5e.pdf
    • http://silekutum.medianewsonline.com/palavras_cruzadas_diretas_coquetel.pdf
    • https://cdn-cms.f-static.net/uploads/4490140/normal_60527e3dbd6e4.pdf
    • https://cdn-cms.f-static.net/uploads/4425533/normal_6016803195b79.pdf
    • https://cdn-cms.f-static.net/uploads/4371265/normal_6026e051582e4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mifotabelimudon.myartsonline.com/zunixijazapalawegofezo.pdf
    • https://s3.amazonaws.com/bupaxomu/pajomexomu.pdf
    • https://s3.amazonaws.com/patilawasu/asrock_g41m-_vs3_audio_driver_free.pdf
    • https://s3.amazonaws.com/girilifawuxi/poxutopibasisezomasagat.pdf
    • https://s3.amazonaws.com/muvevanepen/tamilrockers_2019_tamil_dubbed_movies_free.pdf
    • https://s3.amazonaws.com/sonutopexaramuf/blackberry_classic_autoloader_10._3._3.pdf
    • http://pebomotixot.myartsonline.com/dispositivos_de_almacenamiento_de_datos.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f967.bin
93cf62ad00de28820c4e13483a509632f1a3529807721d02bc9cedb9f4dd8d3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF967 6036 bytes
font_01_sfnt_off00010de1.bin
3fcdf5b6c28a2125081a5401113f70410ed3ad8a55119324a50be89d36792c61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DE1 11276 bytes

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