Malicious PDF — malware analysis report

Static analysis result for SHA-256 93b26c9abf57cc2d…

MALICIOUS

PDF

90.5 KB Created: 2021-06-13 00:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 5048f97093abcfdc5f54fee26b5eb00a SHA-1: d7e8e3444414b69291d44a0c359df5d003297394 SHA-256: 93b26c9abf57cc2d24599b837e0eb80313b3730afc998503cf34c5466bdaee0d
96 Risk Score

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 0.9989

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://infrive.ru/pbw?utm_term=beginning+android+4+application+development PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489033/normal_60bc3a80375ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494146/normal_605844e01f5a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490274/normal_6023b539b314e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377391/normal_60550c17284da.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4420029/normal_60b051ee03f1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388160/normal_600146fc2d467.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459166/normal_60240f55b4e5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380082/normal_5fef37d349fd1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376103/normal_60c1ea07721b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419623/normal_5fe73fa2c5dc8.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4425256/normal_60b2ecc739131.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418000/normal_5fdfc251b8945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468836/normal_60c4f756d3636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446772/normal_6012ff1f3182c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393506/normal_606104eb277ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487623/normal_6052e93f2f4f8.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4487191/normal_60b2031edb193.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425933/normal_603d3b3d87770.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471691/normal_605dac58f03d3.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/0b6fc598-40e2-44e8-821d-a939a8803b63/garmin_drivesmart_55_user_guide.pdfIn PDF document text
    • http://ziludezubeju.pbworks.com/f/spacecraft_dynamics_and_control.pdfIn PDF document text
    • http://vowujepojez.pbworks.com/w/file/fetch/144933084/mod_skin_in_ml_apk.pdfIn PDF document text
    • http://reravupavad.pbworks.com/f/raid_shadow_legends_lightsworn_build.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9af1397a-2093-4ec7-a643-73c3a9adedeb/90087223249.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60c5f4d6-f908-4e7d-8917-e6e087551112/3821935349.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_off0001133a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1133A 5200 bytes
SHA-256: 8cb6e83ae12321bd1acad15ce61bc64d17db23856bc2a5f8dbb1be58bcfcb08c
font_01_sfnt_off000124df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124DF 12132 bytes
SHA-256: 02257cff1f6f9f7dfc4be0a9ed9415fc044371a7bf55178c2d2e9c8f4bcd5830
font_02_sfnt_off00014e30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E30 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176