Malicious PDF — malware analysis report

Static analysis result for SHA-256 e46304c87baf5b25…

MALICIOUS

PDF

77.7 KB Created: 2021-02-09 22:04:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 00871ab978d631a7fff3faf2299128f3 SHA-1: 01576cf358ea277063edb137a66dbb90e586b4a4 SHA-256: e46304c87baf5b25c3bba39d2b4abfb4995479da4002b22bbe651c2418a3d48a
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'maypoin.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to free movie downloads, a common tactic for phishing and malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wb?keyword=south%20movie%20free%20%20filmywap PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443329/normal_5fd6e40d85c30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419642/normal_5fca30e9c4733.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480880/normal_5fddb6413d73e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368750/normal_60186cf367269.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464874/normal_5fd158d943573.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/hUMgiZE/18156025713.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426953/normal_5fcdfe11d11a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454546/normal_5fdc5dcdc6398.pdfIn PDF document text
    • https://cdn.sqhk.co/govazofaj/gcRNgMP/monster_truck_wallpaper_4k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465249/normal_60069d6bef894.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406208/normal_5ff1f963583b8.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/vzWbMge/red_coach_mobile_homes_for_sale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447107/normal_6011e4f9326ee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/blotting_paper_face_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/36569944858.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/fox_sports_1_directv_channel_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/dozag.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/kewazavefajurakubofa.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/wugixubarufavazovakalagi.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/android_studio_javascript_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/ready_alessia_cara_song.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.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e28b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28B 5320 bytes
SHA-256: a90b20abbd609ad574ab05fc1d96eb53d406c8c121c85a2c346b08d92b8ce093
font_01_sfnt_off0000f48b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48B 6068 bytes
SHA-256: d2d10b6b0c668cf26faa9347c7054f8580c7eefa5cb7aecda2a4fba74bd025f0
font_02_sfnt_off0001043c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1043C 10692 bytes
SHA-256: 16ac12794c07e6b899c287e19ac5b0f1cf5704c27f737a8579dc02917967305d

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