Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e9a3201b02a15b3…

MALICIOUS

PDF

109.7 KB Created: 2021-02-08 17:48:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: ce9e875e3dd701f0aceb3ec108bb328d SHA-1: 41845e31deca5687823a0306a9e26d0150006d66 SHA-256: 0e9a3201b02a15b3d5596368f91d5a929426c8a00cabf3734b30fdf8a5c81e3d
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text fragments that suggest a lure related to 'abc news 4 reporters', reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://maypoin.ru/aws?utm_term=abc+news+4+reporters PDF link annotation
    • https://cdn.sqhk.co/vufisolepu/8Xjegfa/nedenero.pdfIn PDF document text
    • https://cdn.sqhk.co/sifalavuxozo/dhhgdja/dead_ahead_zombie_warfare_mod_apk_ios.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451971/normal_5fd7f23e19d7a.pdfIn PDF document text
    • http://salearea.pro/273241180412qjkf.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
    • http://fedorahosted.org/lohitIn PDF document text
    • http://diruxepuf.epizy.com/20040690865.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/juwizesoxivu.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/88292956837.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/62359258605.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/jelataxosaxalorenutulef.pdfIn PDF document text
    • https://s3.amazonaws.com/farokof/super_mecha_champions_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/tlv_acgih_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/wilimos.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AD7 4736 bytes
SHA-256: bd69c46446dc199aa3264b4a96c549a17a6c8dccb4648857478899e9ae470926
font_01_sfnt_off00013af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AF6 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off0001465a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1465A 11180 bytes
SHA-256: e4f02501e18f3e5c234cc1e870e7e050564b2a2b8c93bf2d29018202dcf7c685
font_03_sfnt_off00016ca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16CA7 16132 bytes
SHA-256: 1dc3e4c0df5ca4cee3a891f28fe896d6b16a951626fb4346f09e4ab97736c5fd
font_04_sfnt_off0001819f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1819F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
font_05_sfnt_off00018fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18FA0 6580 bytes
SHA-256: 2e301ee08a23735776ba60449df70c730a9263a47e602d41ee1cbd66fd05af34

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