Malicious PDF — malware analysis report

Static analysis result for SHA-256 a044de1e44ce501d…

MALICIOUS

PDF

94.4 KB Created: 2021-04-08 01:36:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 64a1c6ceb3388b548538fdae0598c66c SHA-1: 57d3ef962b2ecd3517ac08bec88f0c35e181a0d5 SHA-256: a044de1e44ce501d5311f1dffe64a7a4cbbf91c5b9d381c3a35c4a7b56b9a62c
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 0.9998

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://golowaki.ru/wix?keyword=drager+apollo+anesthesia+machine+user+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407087/normal_60082a4656828.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450870/normal_6067582f818b1.pdfIn PDF document text
    • http://coins24h.com/breville_800esxl_bottomless_portafilteroivpo.pdfIn PDF document text
    • https://kojovade.weebly.com/uploads/1/3/4/6/134681743/zovopajunedo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454289/normal_6043dc4f0397d.pdfIn PDF document text
    • http://avtoshtorki.shop/tc_helicon_voicelive_play_gtx_manuale_italianoa8oo7.pdfIn PDF document text
    • https://lefesime.weebly.com/uploads/1/3/4/8/134882546/6228469.pdfIn PDF document text
    • http://onlyforyou.space/gaxupakonew2mr2y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379485/normal_5ff5995e1bce8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476569/normal_6035b2712be60.pdfIn PDF document text
    • http://milansit.space/45599473398nste7.pdfIn PDF document text
    • https://lizakefamejoxen.weebly.com/uploads/1/3/1/3/131384135/3587036.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/getizar/jeep_grand_cherokee_service_reset_2014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7b3ba83-d7f5-4b83-bec9-a52d390841e6/lumiritemuve.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/jewakenewisitosujijoroxuk.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/mla_format_online_citation_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16dc5b33-33f7-4c79-bf40-2d6e928be261/bipepevekotuminiw.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/chemistry_worksheet_oxidation-_reduction_reactions_1_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/pentatonix_cheerleader_lyrics.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_off000131f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131F3 5344 bytes
SHA-256: 70316431d17b5eb504d22cfcd7e0287816a745324769e8a365d42b445b80225a
font_01_sfnt_off00014400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14400 11604 bytes
SHA-256: c148360e79cc26efd3ac034c82e25ed7169843b787387a9956030171c4fe55e3

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