Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7deec5b58f6617b…

MALICIOUS

PDF

77.0 KB Created: 2021-03-06 06:36:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 36698b04a2670441fd39998b4ec71def SHA-1: 6e34d7664a28b95bd65ccb200951e4a12b05c1a0 SHA-256: c7deec5b58f6617b91e7b9644b702e79c9976455246651d55122b9844fad9a9c
136 Risk Score

Malware Insights

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

The PDF contains an embedded URL and heuristic firings indicating it is a phishing lure, specifically mentioning password recovery. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the nature of the PDF and the embedded URI point towards a phishing attack designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://ponafet.ru/wix?keyword=recover+google+password+without+phone+number PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4493549/normal_60373bc20b0f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366336/normal_603e2440082e9.pdfIn PDF document text
    • https://cdn.sqhk.co/bafesugoguwi/nNhiNje/stickman_five_nights_survival_2.pdfIn PDF document text
    • https://cdn.sqhk.co/sabepakofo/j9if0Ry/blackpink_how_you_like_that_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/zodunoxurob/esgc53n/resident_evil_3_mods.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491934/normal_60091c5c84301.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/ivhiiWT/papugixawapasawov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501963/normal_5fe25b296d732.pdfIn PDF document text
    • https://cdn.sqhk.co/nivurerazusa/xc2higi/mimiji.pdfIn PDF document text
    • https://cdn.sqhk.co/delobepaziw/0hijiXZ/neighborhood_watch_logo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494139/normal_60400b74a3e3c.pdfIn PDF document text
    • https://cdn.sqhk.co/nivatasob/ryEGgfb/bard_necromancer_build_5e.pdfIn PDF document text
    • https://cdn.sqhk.co/mifopanikil/jdzbhaF/detective_pikachu_movie_trailer_2019.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/fonazuzixagizir/dalasifejiv.pdfIn PDF document text
    • http://minudumira.rf.gd/baldur_s_gate_map_guide.pdfIn PDF document text
    • http://safodur.epizy.com/2563580448.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/budoduge.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/prostate_cancer_contouring_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/how_to_tone_up_your_legs_at_home.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/toronto_fun_guide_swimming_summer_2018.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_off0000e29f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29F 5668 bytes
SHA-256: 8f0c48c7704a450c5d0a47ac6fbbaa16b74e4d6151b6c1c297526ae422b97206
font_01_sfnt_off0000f5c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C3 10112 bytes
SHA-256: 974e32028bb84b1cf07d1c0f15685b2703b8935905b6f686bcbd9d5c92f98d18
font_02_sfnt_off00011873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11873 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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