Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab04e5589f9a373…

MALICIOUS

PDF

479.2 KB Created: 2021-04-03 00:28:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 50cc0cb69aef13c1ac6ddb26c9a9a887 SHA-1: c0a9b97630f4eee58e69c6b0e87a0165a89f4dd9 SHA-256: dab04e5589f9a37339954482cd68900f4cc3a3be39e656ce27fdf62ab6ceb166
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document impersonates Apple, a known brand, to trick users into clicking a malicious link. It also employs urgency and callback lures to increase the likelihood of user interaction. The embedded URL and the link associated with the brand impersonation heuristic point to a phishing attempt designed to lead users to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9225

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://bazubipevudupu.weebly.com/uploads/1/3/4/8/134876407/d4a0df.pdf.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://jumiwimov.ru/wix?keyword=aptoide+apk+download+old+version+for+pc PDF link annotation
    • https://cdn.sqhk.co/fukonovum/hbPIiig/free_country_ringtones_for_android_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/nozedimasav/jchghid/pawulebuzotujiku.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457563/normal_5ff8d94275339.pdfIn PDF document text
    • http://itactical.xyz/kanmani_baby_songs_in_tamil4es6e.pdfIn PDF document text
    • https://cdn.sqhk.co/pomiziluda/l50efjd/30983722476.pdfIn PDF document text
    • https://cdn.sqhk.co/navozaxezini/Zcji8ia/35189922273.pdfIn PDF document text
    • https://bazubipevudupu.weebly.com/uploads/1/3/4/8/134876407/d4a0df.pdfIn PDF document text
    • http://esclub.pro/85994085453fyo7c.pdfIn PDF document text
    • http://artdebug.site/peculiar_institution_apushf7hw5.pdfIn PDF document text
    • https://cdn.sqhk.co/bexefoboxevi/jegd8id/82454986569.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwipabobatu/iehgvhd/tuzinu.pdfIn PDF document text
    • http://lianhua.life/perumubp67rt.pdfIn PDF document text
    • https://cdn.sqhk.co/jozojijejip/Vieie2L/6313779245.pdfIn PDF document text
    • http://idealica-ufficiale.site/aplastic_anemia_treatment_guidelinescc6kn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413978/normal_603e6a6e8196b.pdfIn PDF document text
    • https://mamifonor.weebly.com/uploads/1/3/1/1/131163935/70a3961.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006c9c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9C2 19620 bytes
SHA-256: 6fbed7aad2b00c1e5b92f0e1453d1b8a729e63e941955eecf8073784e1bdc69b
font_01_sfnt_off000707bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707BC 5352 bytes
SHA-256: 061ee9dcafa1246e5503a22bb4b1e4c62c269ca41050bb853bdde7f25996188d
font_02_sfnt_off00071a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A21 20808 bytes
SHA-256: 84d29972f0a95959085cffbaca530ff35a9c3c3442fda7c44f63c2db45aff203
font_03_sfnt_off000756e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x756E5 16116 bytes
SHA-256: 30ea8021b97d3592e974e18fab54783806b23929815cca0db42a0841356ef983

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