Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b21241302db8e9c…

MALICIOUS

PDF

374.8 KB Created: 2021-03-30 12:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2a38151a97363c87bbcbf3e04a0cc688 SHA-1: faa0a08ff6b3c7e84b199df7fe884c357ad5e4d7 SHA-256: 2b21241302db8e9c363fd8fe9f5125643e79e826537c024a6841be2fc3acbd9c
96 Risk Score

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 0.9413

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://maypoin.ru/wix?keyword=insanity+nutrition+guide+francais PDF link annotation
    • https://vamolitewule.weebly.com/uploads/1/3/4/6/134670516/5120195.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464861/normal_60116089931fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489853/normal_5fc62c537af3d.pdfIn PDF document text
    • https://mimevomakiket.weebly.com/uploads/1/3/4/6/134693464/nirapodepomudode.pdfIn PDF document text
    • https://lujipened.weebly.com/uploads/1/3/2/7/132740552/wujuxobegalel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452835/normal_5fe02a2caa1bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368222/normal_604ad6c4ed62d.pdfIn PDF document text
    • http://canonsburglake.com/kidoxaxesaperanutuxakiy95jy.pdfIn PDF document text
    • http://6gusevshop.space/sefewatawepesikujeraxogi2scaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484122/normal_60367e293abe2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420765/normal_601dcc020b33d.pdfIn PDF document text
    • https://fiwugepupuladav.weebly.com/uploads/1/3/4/7/134740110/6727338.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371247/normal_5fc6859ed576b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451033/normal_60609205432f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446382/normal_60240a1ec35ee.pdfIn PDF document text
    • https://jevixivuxed.weebly.com/uploads/1/3/4/6/134622771/fekidifeduket.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/fuwawibu/vekifilejoxonakop.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/the_story_of_oj_instrumental_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/adidas_size_guide_youth.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/sotuwanuriwunusere.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/7036747824.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/brother_mfc_7420_toner_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/california_acknowledgement_notary_form_2018.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57802 5196 bytes
SHA-256: 2b3b73bef197a0cba5f48d0cb75cfb574289dd58c5d46b485c39d36c16cfc322
font_01_sfnt_off000589cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x589CB 13560 bytes
SHA-256: 77c57fb6980ebf3536085cece6972a4c6a6960b1c28864836e18a38f3d8d175c
font_02_sfnt_off0005b684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B684 16084 bytes
SHA-256: a56dd6e3cfa148c92ed5f3142193374b407f6958f728d0c91ff19ef246bd70d4