Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceeea9a7af806e6d…

MALICIOUS

PDF

90.2 KB Created: 2021-04-05 05:50:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5efa6c999a9b0ceb85dfed0474a6e157 SHA-1: 28052b355098fd76a2a9b927f6a58cab548dc049 SHA-256: ceeea9a7af806e6d04037355dfa798d8e6f405eb7e8221d5e50087afea3df624
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URL that points to a potential second-stage payload. The presence of a 'download' button heuristic further suggests a phishing or social engineering attempt to trick the user into downloading malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/wix?keyword=strucid+script+2020+july
    • http://gaydating.world/xprofile_free_alternativekcobs.pdf
    • http://italy-small.space/nuwemewusu2lhw3.pdf
    • http://inmyshtangen.xyz/wisugosegixenufitifeni6mzjq.pdf
    • http://perakaganiw.iblogger.org/bsf_ki_full_form_kya_hoti_hai.pdf
    • https://cdn-cms.f-static.net/uploads/4462341/normal_6042cb76cd9f3.pdf
    • https://static.s123-cdn-static.com/uploads/4374980/normal_5ff5b7ecf318c.pdf
    • http://ronerikasov.22web.org/avatar_the_promise_part_2.pdf
    • http://nuxefigemotak.22web.org/top_5_bollywood_music_website.pdf
    • http://russianstravel.ru/what_is_the_plot_of_the_story_charlesbj36j.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://luxizetugo.epizy.com/61792259437.pdf
    • https://s3.amazonaws.com/zabejuvijolu/kefupotomigesibo.pdf
    • http://wojobawezelo.rf.gd/30809999994.pdf
    • https://uploads.strikinglycdn.com/files/00493741-cc4e-40c9-a3b0-f078abf906a2/panasonic_dmc-zs40_firmware_update.pdf
    • https://s3.amazonaws.com/tedowafomaru/datopironuxes.pdf
    • https://uploads.strikinglycdn.com/files/f6252ec8-540c-4c4d-bc69-38c8e8f8a9b4/food_preservation_in_medieval_times.pdf
    • https://s3.amazonaws.com/vuzotisenixava/tableau_product_key_generator.pdf
    • http://gajiwudozu.epizy.com/syeeda_s_song_flute_sheet_music.pdf
    • http://zotinebid.epizy.com/61045403355.pdf
    • https://uploads.strikinglycdn.com/files/88ea4525-1e44-47e3-a902-8a4d6c56e43c/bejokovipir.pdf
    • https://uploads.strikinglycdn.com/files/3e76cf68-0538-40d7-869e-f2c55d6f07b1/the_art_of_manipulation_audiobook.pdf
    • http://putiremupupunis.epizy.com/gubulinedikegodig.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f798.bin
048fb1891f432488516cd811e7b04d68e7d39e548ca3495625137f8fb0c23ff4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF798 6744 bytes
font_01_sfnt_off0001087d.bin
7be226dd1e620620e4aa342e7cd651835b19d5b52db8165857ecf5404b48382f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1087D 5412 bytes
font_02_sfnt_off00011b07.bin
86723d63b4009aa93486454729b73d8f7316c2bb14c91c3650e20517940b2074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B07 12036 bytes
font_03_sfnt_off00014454.bin
eb49df985c863db098e5748d60751e0bdf461ae071a7d58dcfe3683d2a7c527c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14454 16616 bytes

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