Malicious PDF — malware analysis report

Static analysis result for SHA-256 68603631410d5d40…

MALICIOUS

PDF

76.4 KB Created: 2021-05-19 23:19:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 26d99f54cee093f7fc4278d6f138c993 SHA-1: c266df959653efd4fdb60741e330f6e876f92c18 SHA-256: 68603631410d5d40f8e10ae39d9b5895339a05e09cee6f642b328135fcc1db2a
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'zajinet.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Genie intellicode remote reset'. No scripts were extracted, but the presence of an external URI strongly suggests the document is designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://zajinet.ru/strik?utm_term=genie+intellicode+remote+reset
    • https://static.s123-cdn-static.com/uploads/4415527/normal_5ff0251e3a715.pdf
    • https://cdn-cms.f-static.net/uploads/4388432/normal_6031639fc7143.pdf
    • https://static.s123-cdn-static.com/uploads/4393916/normal_5ff14c1e43038.pdf
    • https://cdn-cms.f-static.net/uploads/4477877/normal_603636ca66dce.pdf
    • https://cdn-cms.f-static.net/uploads/4369640/normal_601cca54c5368.pdf
    • https://cdn-cms.f-static.net/uploads/4387408/normal_603dc770e101d.pdf
    • https://cdn-cms.f-static.net/uploads/4485946/normal_603f49c84037d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/welanisowari/23071282231.pdf
    • https://s3.amazonaws.com/zabejuvijolu/brawl_stars_mod_apk_lwarb.pdf
    • https://s3.amazonaws.com/gazijewevan/ms_word_graphic_organizer_template.pdf
    • https://s3.amazonaws.com/setigafat/hairspray_script_1988.pdf
    • https://s3.amazonaws.com/pojikovewijeja/how_to_make_money_while_stay_at_home_mom.pdf
    • https://s3.amazonaws.com/norozovijalu/10946872474.pdf
    • https://s3.amazonaws.com/dazovosugev/little_red_riding_hood_characters_images.pdf
    • https://s3.amazonaws.com/makumapikeze/judepojepinetozu.pdf
    • https://s3.amazonaws.com/pazatuv/66645673341.pdf
    • https://s3.amazonaws.com/wapabefizosumi/disebatufalirugizekidedol.pdf
    • https://s3.amazonaws.com/kisimujuk/xuluxi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee38.bin
91cf9349084dbbc025f27c5df371b9cdbe59c2129d805d9c01e97ee3ea5d3150
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE38 4908 bytes
font_01_sfnt_off0000fed4.bin
a3d867bdf8c94b50b23937cbcdd16e02013e39af1d484f45fd59efc9b61f69f2
pdf-font-stream PDF embedded font (sfnt) at offset 0xFED4 10580 bytes