Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7ed88141763c79…

MALICIOUS

PDF

77.3 KB Created: 2020-11-16 19:18:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8d0e7b610d2ddaf79223f8ccef461cc1 SHA-1: d2ab73f83ac2d33d58704b226e0a7a5d541bef51 SHA-256: eb7ed88141763c798480078878ee6ce7583384a90bd82a6b330741105dce833b
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://traffnew.ru/123?utm_term=which+of+the+following+is+an+example+of+dysfunctional+behavior PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446168/normal_5fa94f6b876a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379221/normal_5faac359ceb39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383340/normal_5f9d89f436ae4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387420/normal_5fa37c58dcb4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422371/normal_5fa99200b6b9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451363/normal_5fa5e53801935.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481695/normal_5fa7cbabca5a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378167/normal_5f90bca8d1e86.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f94f7075796e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/17f84af4-384a-4968-98e8-6a1c9b98ee44/lowetasokusozovuzefeku.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/princess_margaret_lottery_winners_may_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85188f2c-7bb1-431b-8cb9-570b3d45640e/seasons_and_months_of_the_year_in_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/rakonezum/real_life_examples_of_unit_elastic_demand.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/senior_staff_accountant_job_description.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d15e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD15E 5924 bytes
SHA-256: b7ff802734b35875c7af15bdf291a9165d53ebcd2217fc8495eed4d432b79c06
font_01_sfnt_off0000e571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE571 10756 bytes
SHA-256: a6a7a28886d7709524c9798d9edfdff66a4038c2ec89921aee081ed9a4bc1c61
font_02_sfnt_off00010a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A58 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
font_03_sfnt_off0001181b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1181B 6084 bytes
SHA-256: 0bbd385887db5074fbd87256d70f98a882c9353f1362fd6c1377f0ce146e0394

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