Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ab8628bf7f40750…

MALICIOUS

PDF

79.1 KB Created: 2021-02-16 03:40:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5a15f3da2f5d5ac012c7479d30b21519 SHA-1: ba14090f6578e5f4bccfe7044d6b098aa053ced9 SHA-256: 9ab8628bf7f407506d596d00727cbb4b54674ce441e14eafb3ab4c1a126605c1
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/strik?utm_term=traductor+espa%25C3%25B1ol+al+portugues+de+brasil PDF link annotation
    • https://cdn.sqhk.co/woledibiroju/Wjaieij/world_war_z_zombie_wave.pdfIn PDF document text
    • http://topmassage.net/balsamiq_mockup_32_bitrs4ef.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/RjhDhfN/14957583738.pdfIn PDF document text
    • https://cdn.sqhk.co/lebereme/jaSUANJ/zombie_age_3_mod_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402956/normal_600a275daefb0.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/jhgjgii/lofipigidedi.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/jgp9I71/63745939922.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443588/normal_5fe0042a39406.pdfIn PDF document text
    • https://cdn.sqhk.co/ratosakip/ehHhigf/71764884333.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454425/normal_5ff57ef10c9f4.pdfIn PDF document text
    • https://cdn.sqhk.co/bikegola/hiwhbky/14790677535.pdfIn PDF document text
    • https://cdn.sqhk.co/bomumuxa/atPiehd/82742213583.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/x2hiWii/7811638157.pdfIn PDF document text
    • https://cdn.sqhk.co/rosomugimo/Jgivie8/indoor_skydiving_miami_fl.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
    • http://titarejidawe.epizy.com/89792759785.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

Related samples 8

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_off0000d51d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51D 4088 bytes
SHA-256: d1326bca81d1fe6eeda78d4eb52d12efd5559b142c14d65bd15343a2b671d126
font_01_sfnt_off0000e3e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E6 5320 bytes
SHA-256: c4a4f4f1c363476a4a587b28f466c9e46ba41fcf2e253d0d363ce44e36167b26
font_02_sfnt_off0000f5f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F4 12436 bytes
SHA-256: 3260095ea5989d1c0628a280b57b013ec3f2567c3c8df884159fba31c2519b80
font_03_sfnt_off00011e57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E57 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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