Malicious PDF — malware analysis report

Static analysis result for SHA-256 a59c8c3a30d7c44b…

MALICIOUS

PDF

74.4 KB Created: 2021-03-27 15:07:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ce8de507017011bb5af617f884506aff SHA-1: ff3c18abb24aa3dbbff5afb415962d5c69b14d40 SHA-256: a59c8c3a30d7c44b8f89a0c2a5b08c71f2a39b5839a59f5c2cf0353d3fa5f13d
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 0.9997

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://resalured.ru/award?keyword=cardinal+sarah+silence+pdf PDF link annotation
    • https://cdn.sqhk.co/vixemujomu/hagehcp/45836186786.pdfIn PDF document text
    • http://fasumidivojasuj.iblogger.org/android_10_release_android_one.pdfIn PDF document text
    • https://cdn.sqhk.co/dolafita/bhe94hj/49217413886.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • https://cdn.sqhk.co/kevovevude/jfgdHsL/dinomafivakujebi.pdfIn PDF document text
    • https://cdn.sqhk.co/tezabulaw/dVZjhcN/zulara.pdfIn PDF document text
    • http://lnstagram-help-businesss.com/70459733771e3exs.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/ggic4hg/gedifukup.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/rorives/blackweb_rgb_gaming_mouse_review.pdfIn PDF document text
    • http://tilozirudikobuk.rf.gd/delolemar.pdfIn PDF document text
    • http://zunedolu.rf.gd/liwulowuwudavovafosib.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/watermark_software_mac_free.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/29921569190.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/zezadaviwokuvulazige.pdfIn PDF document text
    • http://rujifidifad.rf.gd/list_of_architects_in_vadodara.pdfIn PDF document text
    • http://gijufemuvo.rf.gd/18798390383.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/abb_surge_arrester.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/99512939303.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/fortigate_200e_configuration_guide.pdfIn PDF document text
    • http://xexelakufakeze.epizy.com/autodesk_3ds_max_2016_xforce_keygen.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_off0000e5bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5BC 5148 bytes
SHA-256: 8ee97d876ecf31dec43d3f3cda1e2ca5169693f47cfebf096f5f16df6a5e8444
font_01_sfnt_off0000f734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF734 11140 bytes
SHA-256: b1b7ecdc44abe0e1102b67d852277aae03af6b221122ac19731d44bf59ef990a

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