Malicious PDF — malware analysis report

Static analysis result for SHA-256 c276282dca933074…

MALICIOUS

PDF

73.6 KB Created: 2021-03-14 11:05:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 805a24d52a888d351e2a92f2737c4f08 SHA-1: b2ea621188b04eb91a6fcbdc75073ae7076d0a7d SHA-256: c276282dca9330749d9af6b7d54ead2f224a0894fd6ee035aa80619ecfcef83f
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://xezojetit.ru/award?keyword=addition+and+subtraction+without+regrouping+pdf PDF link annotation
    • http://milanbeachs.space/how_do_i_set_my_verizon_remote_to_control_volumekcvq2.pdfIn PDF document text
    • http://itclick.info/in_the_end_the_choice_is_all_yours_lyricsnln9h.pdfIn PDF document text
    • http://bt-management.website/sigesomexekeziruruwewbyyrh.pdfIn PDF document text
    • http://my-favshop.online/gufimuleqtscf.pdfIn PDF document text
    • https://cdn.sqhk.co/bogovureg/rTiaVKY/31183708311.pdfIn PDF document text
    • https://cdn.sqhk.co/tibakekavero/gggjcLj/67343865510.pdfIn PDF document text
    • https://cdn.sqhk.co/xufaribo/viiv3tU/88516734659.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/jLAVUsH/puzzle_defense_match_3_battle_game.pdfIn PDF document text
    • http://vonezejavej.22web.org/53412432717.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/bulozor/albert_speer_his_battle_with_truth.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aca2e286-37b6-44cb-adea-a215bebdbe4e/jowilumeredagi.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/gifilulivimurovu.pdfIn PDF document text
    • http://tunivepusage.epizy.com/esc_guidelines_for_pulmonary_embolism.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/manual_ge_6_device_universal_remote_codes.pdfIn PDF document text
    • https://13a7c488-548c-4b48-b567-d2b0b9a3e1de.filesusr.com/ugd/85d67f_af2b15f7bdb9495495a1bb84949f7f75.pdf?index=trueIn PDF document text
    • http://pozijirume.rf.gd/revenue_management_in_hotel_industry.pdfIn PDF document text
    • https://a6053a4b-6066-498d-92a8-7748b68531bc.filesusr.com/ugd/5f0d2f_726ca138bc574891894a098d7546ab43.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xajowu/puwajamukazotinevisarobe.pdfIn PDF document text
    • https://56db2a4d-09ce-4ff6-a558-abb1d6727cd4.filesusr.com/ugd/003b86_d99382058e1b4fe8b560492e6a321f39.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/bi_weekly_status_report_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46003bab-b7f3-4def-9fec-42b4ae4db387/megefaka.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_off0000e1fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FA 5604 bytes
SHA-256: 3ffa30d44dcc2fc07417b173eee668e4e5e07da0172bb596dc048049697fd09b
font_01_sfnt_off0000f515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF515 10440 bytes
SHA-256: 3c8ef0d73171634d9c2ed27825b822e903ad25fd20b7cfaa9cadaeb8d74f4653

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