Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e6f0b0ceaaa5ff1…

MALICIOUS

PDF

86.3 KB Created: 2021-02-26 10:22:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 85a2c9e7479eb8673ceb842385c6b3ac SHA-1: 659b0a3a287b7f363929781905efa4f3e4a5ce63 SHA-256: 5e6f0b0ceaaa5ff1a9fc221688b354d03c1366a22a5c72a1d1eebd037c98b43a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body is heavily obfuscated, but the presence of an external URI suggests an attempt to download or redirect the user to a malicious resource.

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://seumenha.ru/wix?keyword=bdo+ninja+pre+awakening+guide PDF link annotation
    • http://meetsoda.club/civil_engineering_material_testing_lab_manualywt0p.pdfIn PDF document text
    • http://yoganchik.space/total_overdose_apk_file_downloadv9or4.pdfIn PDF document text
    • https://topalezomezo.weebly.com/uploads/1/3/4/3/134305389/eca77f.pdfIn PDF document text
    • http://coloradocustomelectric.com/70639623786fd6x7.pdfIn PDF document text
    • http://sosyaltakipcipanelin.com/camp_chef_pellet_grill_recipe_bookkx6bp.pdfIn PDF document text
    • http://differencecheats.net/vuzolimesozamudivoa8tdo.pdfIn PDF document text
    • https://cdn.sqhk.co/doxutijewu/Rjio0hi/dumepole.pdfIn PDF document text
    • https://wobomiti.weebly.com/uploads/1/3/4/5/134501920/jixivibaga-kexosaninut.pdfIn PDF document text
    • https://cdn.sqhk.co/gujuvizaja/fMw3Hib/78429196757.pdfIn PDF document text
    • http://fb-ig-violation.com/minecraft_pe_pixelmon_mod_downloadekqjv.pdfIn PDF document text
    • https://cdn.sqhk.co/vejuwami/ojahjUt/53116872753.pdfIn PDF document text
    • http://bupetud.xyz/32501751429v1u9w.pdfIn PDF document text
    • https://tojewenegekov.weebly.com/uploads/1/3/4/5/134502344/ralisomoso.pdfIn PDF document text
    • https://bedexupef.weebly.com/uploads/1/3/0/7/130775630/6739804c8e9.pdfIn PDF document text
    • http://www.opentle.orgIn 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/julexekubaj/79137670599.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/48783155186.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/plant_and_animal_cell_diagram_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/keloid_silicone_gel_sheets.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0001001b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1001B 9012 bytes
SHA-256: 6705fd363ceae9f01e4d0f116793d592d2dd6e097df2eb06189f9b4a5df28ac7
font_00_sfnt_off0000ef03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF03 5000 bytes
SHA-256: fb3fb60a5a5a16d93338217f0fd23b706d2eb825143c8f375ecb2df900e7d831
font_02_sfnt_off00011912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11912 10636 bytes
SHA-256: 985f63e0c4a53584a510e345db2d7c80c8509f65951881d57168368c478d765a
font_03_sfnt_off00013d2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D2A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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