Malicious PDF — malware analysis report

Static analysis result for SHA-256 437aa12fa60f678d…

MALICIOUS

PDF

84.7 KB Created: 2021-03-25 14:50:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e17f78e05ff9d678839b149dd9290481 SHA-1: c0e0e4f99fe2cbfd59f00391e7ffbc1d0a7fe67e SHA-256: 437aa12fa60f678d9bf442e936c58347916a448a8934547946ca132e80ea8ba4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://dafemum.ru/wix?keyword=ffxiv+eureka+pyros+quest+guide PDF link annotation
    • http://lifeit.pro/wivupopanukajolumog1zs82.pdfIn PDF document text
    • http://kindraretterath.com/givovetomq8xfp.pdfIn PDF document text
    • http://volosaty100.xyz/53526424539pyc1h.pdfIn PDF document text
    • http://graatorama.space/the_new_urban_sociology_5th_editionj0j75.pdfIn PDF document text
    • http://jakartapro.xyz/what_kind_of_gas_does_a_chevy_impala_takeug60b.pdfIn PDF document text
    • http://klokisik.space/nimepunenevugawxrdax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0053366d-b048-478d-a3d9-38b54e92a8f6/94008249520.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/what_inspired_mary_shelleys_frankenstein.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d87310f-d8a8-4570-9aa4-711c830d76c5/schaums_outlines_statistics.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/ielts_listening_test_2_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/daphnia_magna_genome_size.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/dracula_bram_stoker.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/siwulezalokem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b05eb03d-5ef8-42d8-8279-0ae63ef46170/how_to_use_alphatrak_2_on_cat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/149eb2b9-dd21-421c-a240-8e0040dbcb83/46245000856.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/vubaxunogato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf4d00f1-29c4-4889-9ec5-7cfe46e10d26/mitsubishi_plc_wiring_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/dopawonimir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e290436f-822d-43d3-b34a-0fba0fc27be9/58305636691.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37452ae1-d726-48bc-af4e-488e1d278b3d/wibazerinup.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/jajizi.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/cooper_lighting_apel.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_off00010f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F01 5552 bytes
SHA-256: 75914b1b41e1261798892ca454e576ec896c9b046ab12059479f70615d42dc6d
font_01_sfnt_off00012208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12208 10464 bytes
SHA-256: af9445e3d6f150e309e5d03c4340d06af67094f3ca744d8efd6950c8707b0e3c

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