Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb67bf727c07af49…

MALICIOUS

PDF

82.3 KB Created: 2021-02-14 13:34:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a4ff4a9f9b03fa20d254601be2ad1912 SHA-1: 65f14ba86e869a44c2f8447563309fade8b79465 SHA-256: bb67bf727c07af49c966439c4705c5439c941701e93564a64775fbd5381bd1db
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 0.9994

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://seumenha.ru/123?utm_term=pronounce+homework+in+japanese PDF link annotation
    • https://fitatopiwize.weebly.com/uploads/1/3/0/7/130739398/tasiwibofidu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481154/normal_5fe2c2ef6969a.pdfIn PDF document text
    • https://wojaxesisitofem.weebly.com/uploads/1/3/4/7/134717171/c0f5d506.pdfIn PDF document text
    • https://xowivana.weebly.com/uploads/1/3/0/8/130813667/nidulojususub_vasezidixujep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453532/normal_601df9662f423.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475572/normal_5ff274cb69338.pdfIn PDF document text
    • https://lagukowimewalis.weebly.com/uploads/1/3/5/3/135335318/kawomadakerene.pdfIn PDF document text
    • https://cdn.sqhk.co/baxijaxazixi/YhbiKCj/41503801446.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426832/normal_600fe69d104ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411922/normal_6004c46d282c1.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://s3.amazonaws.com/jaxesabi/contemplated_change_notice_vs_change_order.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/nfl_week_14_2018_injury_report.pdfIn PDF document text
    • http://vofopinalog.epizy.com/lenokekokunoroxuzawel.pdfIn PDF document text
    • http://jufofokisib.epizy.com/97694122651.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/dolatefufa.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/zurow.pdfIn PDF document text
    • http://jikelofov.rf.gd/xanuzekijuxego.pdfIn PDF document text
    • http://betelenederope.epizy.com/63474169459.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
    • 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
    • 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA44 6804 bytes
SHA-256: c70aa309110641346dd7c3c256471716fbe1bfa73f3b85eeebb489db2ef7af7c
font_01_sfnt_off0000cb4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB4C 6736 bytes
SHA-256: e4e2ca341434e09cb6d60a01c511e47ade006084ddd85481b78fea8f431e2dba
font_02_sfnt_off0000e273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE273 5176 bytes
SHA-256: 924aa6deea93678bc3811d9d819c05bfc1e57fc5efc65cc470d0a998319d9920
font_03_sfnt_off0000f3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D7 9980 bytes
SHA-256: 9486d28db73302d9dd1123202ea67104cec1762d3dcf7cce3c80b2122ce7909d
font_04_sfnt_off00011618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11618 16492 bytes
SHA-256: f8fa0b238ec2b54f3f273be207d6bf72ef2cc9cba725d38c55971e460eb35c58
font_05_sfnt_off00012c90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C90 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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