Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c877f537834f805…

MALICIOUS

PDF

83.1 KB Created: 2020-12-27 18:02:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: e26c95e95342fa2befb79693ec2feda6 SHA-1: 9ddce05b897b4b011d322eeef3388a456d9358f4 SHA-256: 0c877f537834f805ae01e39e3dff968698765dd6122a13cbf0937bbcb68df095
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://trafffi.ru/strik?utm_term=neuroshima+hex+android+online+multiplayer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410722/normal_5fa30b2924871.pdfIn PDF document text
    • https://cdn.sqhk.co/linerutinew/RM7b7DV/difference_between_barbershop_and_hair_salon.pdfIn PDF document text
    • https://cdn.sqhk.co/kurinunuwor/ehaY9jc/ski_jacket_womens_sports_direct.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/aa01f116-18ef-4203-af4d-12ef8f892833/robitussin_help_with_conception.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab7aa9bd-1dc4-428f-8db8-1664fed2a19a/dragon_belly_holster_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdc48b64-8991-4a3b-bde6-fbe468334ac8/libro_desarrollo_organizacional.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0549e0c0-cfcc-4cab-8162-e184c64d7e96/pittsburgh_jewish_population.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8d8d9ed-953f-42b5-9331-dd0d71bcc347/4bt_cummins_for_sale_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/731d5240-d5e1-4fe1-8a70-a9bdd3d1c532/xotegezu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dddf8560-0bf9-4986-913e-45592d2de255/malod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/449bd0e2-3fd8-44c1-97a0-b723cc2e7abe/82423460243.pdfIn PDF document text
    • https://s3.amazonaws.com/giwurode/78500111954.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67c9459d-1b2a-4cf9-b2b8-fddb020a9065/31417357722.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f14f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14F 5220 bytes
SHA-256: ff13bda2e325657deddb24353fca256fca16a08e6d26284e574e21032baa6eb3
font_01_sfnt_off000102f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F0 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00010b7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B7E 10984 bytes
SHA-256: 46114790efe3f273061c0f78e9b1219322969877aa6000e552b38c59fccd34c5
font_03_sfnt_off0001308f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1308F 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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