Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda0e181f8db31f9…

MALICIOUS

PDF

83.5 KB Created: 2021-02-21 03:03:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f8da269f578145360cb2a0c68aaf6fbc SHA-1: ef28a76d51efaafe87277e1faf4e1594c1048a95 SHA-256: fda0e181f8db31f96fa8d92f26df31fc078a7b14961ba2a1a227aa8d0f879ef4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains an embedded URL that points to a suspicious domain, likely intended to host a phishing or malware payload. The document body, though heavily obfuscated, appears to be a lure related to a video game, suggesting a targeted phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/123?utm_term=how+to+unlock+last+wish+raid+destiny+2 PDF link annotation
    • http://kezosod.iblogger.org/acta_de_constitucion_de_un_proyecto_formato.pdfIn PDF document text
    • http://xewuxufulizifu.22web.org/xusonemazololufuki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406466/normal_5ff031c648224.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423430/normal_5fd919849bf0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417314/normal_602ff30ac86c2.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/zidosozawok/zawurex.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/activar_almacenamiento_externo_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/july_calendar_2018_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/adam_s_apple_wayne_shorter.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/7744568138.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/kiwi_syslog_server_upgrade_guide.pdfIn PDF document text
    • http://vejawogi.rf.gd/zawijilojudunivedabixos.pdfIn PDF document text
    • http://guwitus.epizy.com/mizodu.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/powerpoint_timeline_template.pdfIn PDF document text
    • http://xuvotawelotito.epizy.com/fowiliwula.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/bihar_gana_ing.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/26266519627.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB0 5260 bytes
SHA-256: 2c31ccbb7f5a63059c5a276366ddea90aa0364293126435976751f9378f6beb8
font_01_sfnt_off00010f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F9A 10184 bytes
SHA-256: 9020ea1f06b98dbdcafcd14f2449791e2e26325cb3692b7fab0561360f653c84
font_02_sfnt_off0001326e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1326E 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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