Malicious PDF — malware analysis report

Static analysis result for SHA-256 00de764b04fe1673…

MALICIOUS

PDF

82.1 KB Created: 2021-03-17 04:54:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67ce763fe84348e7a737d003f049065f SHA-1: 2a76313174a8073faf5a97e2e42ba453a5aecd14 SHA-256: 00de764b04fe1673794377652fa99304d139d3c00a033ca2b93d004b93e9755f
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of external links, many of which are hosted on dynamic DNS services or link farms, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, appears to be a lure related to 'outstanding warrants'. No scripts were extracted, but the presence of numerous external links indicates a high likelihood of redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/wix?keyword=comal+county+outstanding+warrants
    • https://cdn.sqhk.co/tunuviju/f32u7B1/ducks_basketball_schedule_women_s.pdf
    • https://sipovabamekejo.weebly.com/uploads/1/3/5/3/135391609/mewalivir.pdf
    • https://cdn.sqhk.co/tinulafi/djgjhgj/lasomefu.pdf
    • https://jebapawobukil.weebly.com/uploads/1/3/4/5/134521284/dugawup.pdf
    • https://cdn.sqhk.co/fafojipedul/2jajchb/chevrolet_camaro_bumblebee_transformers_1.pdf
    • http://vopibuxipem.22web.org/39814097980.pdf
    • https://cdn.sqhk.co/bujerinalo/8JMjfts/vavimetuzav.pdf
    • https://cdn.sqhk.co/baruduwege/gghhhLg/soccer_kingston_upon.pdf
    • https://tedisizizifem.weebly.com/uploads/1/3/4/2/134235801/nofetidisixaruvefu.pdf
    • https://zikivunebek.weebly.com/uploads/1/3/5/9/135964247/1151834.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wozoxub/46308325021.pdf
    • https://s3.amazonaws.com/kosamupim/ticket_template.pdf
    • https://s3.amazonaws.com/xumakomowi/empty_calendar_template_august_2019.pdf
    • http://xusoromi.epizy.com/gta_vice_city_game_password.pdf
    • http://golokelu.rf.gd/poladotiwipufupevew.pdf
    • https://s3.amazonaws.com/tazibabebamep/how_to_pair_2_jbl_flip_speakers.pdf
    • http://ketanuviz.epizy.com/90121709771.pdf
    • https://uploads.strikinglycdn.com/files/eae0b494-6be4-4dbd-9a67-ac81410251ef/where_can_i_stream_twilight_for_free.pdf
    • https://s3.amazonaws.com/vovabagubajegeb/19276659242.pdf
    • https://s3.amazonaws.com/tokafanawa/biohazard_vector_free.pdf
    • https://s3.amazonaws.com/vuzotisenixava/iflash_bios_update_utility.pdf
    • https://uploads.strikinglycdn.com/files/1d9d64ca-b143-4b53-a723-307aa3cf0325/dell_poweredge_2900_system_board.pdf
    • http://wepaxilex.epizy.com/wizojakapevogireregogojo.pdf
    • https://s3.amazonaws.com/taguxif/nutritional_information_three_bean_salad.pdf
    • https://uploads.strikinglycdn.com/files/4eb5120e-176c-4e46-b5bb-03077b603ba2/jetifurokedinalogibir.pdf
    • https://s3.amazonaws.com/farefasejikap/97036622464.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_off000100d7.bin
289820fa429913b681253f72b8aaf6cf44e45be96f7df6f7c8bac8e59c9b3828		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100D7 5356 bytes
font_01_sfnt_off00011304.bin
aa26a6589b083f67b67b96c8fa2eba133873574949b99065531931d078eca9be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11304 11080 bytes

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