Malicious PDF — malware analysis report

Static analysis result for SHA-256 a879a6d1e31e12cc…

MALICIOUS

PDF

103.1 KB Created: 2021-02-15 20:26:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: fc2374aeb930123bf233064d01f51784 SHA-1: 6fbbad9b4c6fa566eade3e740e3baad11ded75a9 SHA-256: a879a6d1e31e12cc484215ab98b92938db12f9dcd880544ad71643418e1fb08f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and ClamAV detected it as a phishing trojan. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the presence of external URLs and the nature of the detection suggest the PDF is designed to redirect users to malicious content, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://leonvi.ru/wb?keyword=igloo%20self%20cleaning%20countertop%20ice%20maker PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4419628/normal_6001e02b1bd6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389127/normal_5fc760e381e8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455375/normal_601a3d0cd74b0.pdfIn PDF document text
    • http://suxiselukex.66ghz.com/wefamiwosa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485695/normal_5ffe595012039.pdfIn PDF document text
    • http://givepamodugag.22web.org/kaththi_bad_eyes_villain_theme.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402936/normal_5ffcb5c94d862.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467564/normal_601af267843fa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://moxirekix.epizy.com/henrico_county_police_crash_report.pdfIn PDF document text
    • https://s3.amazonaws.com/dexodekelaseki/apa_format_article_citation.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/chamatkari_indrajal_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/davulunuzanaluwuditalofes.pdfIn PDF document text
    • http://gebogozomusedom.rf.gd/judas_maccabaeus_sheet_music.pdfIn PDF document text
    • http://fugirar.epizy.com/call_ringtones_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/gateman_z10_installation_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/nafajaxuz.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/zusodoketavu.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/87319558953.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/vavifa.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
    • 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_off000134d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134D1 2900 bytes
SHA-256: a28fcc4ba65d8171a55e8b87d646ac5d1dd213f66ab2b0026fd39e5ca5d32d1a
font_01_sfnt_off00013f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F13 5336 bytes
SHA-256: 40b4244fbee94fd6b39d8630b107e28746d0cf62f47919f5613cab439796c2f9
font_02_sfnt_off0001513a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1513A 11992 bytes
SHA-256: c308b877639c121f89144da8f9909e3b337926369c39fde74a2a1cf34f77ebe2
font_03_sfnt_off000179f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x179F1 16036 bytes
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940

Open this report in the interactive analyzer, or submit your own file for analysis.