Malicious PDF — malware analysis report

Static analysis result for SHA-256 b97f8085ba5a8620…

MALICIOUS

PDF

81.7 KB Created: 2021-03-19 05:22:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e8d297052154a0d4eae0e395cfea1eef SHA-1: e981091e8e15091580c0fc6fb668a15a258cef74 SHA-256: b97f8085ba5a862090bf36111b592073acf8d43bd7fcf62198c666c60b538de0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a search result. This is a common phishing tactic to trick users into visiting malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=sadlier+connect+unit+1+synonyms+answers
    • https://cdn.sqhk.co/fofodafexadu/irCjeWH/teddy_bridgewater_vikings.pdf
    • https://cdn.sqhk.co/gabadifofibo/gcigedN/baruwujuriwagovudotupetix.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6d0f3422-c1a1-4f64-b2f8-4c473e507718/jogizokazufijusukixinejug.pdf
    • https://uploads.strikinglycdn.com/files/fefe355c-16e3-4f01-a41c-6b0e25439286/15855918602.pdf
    • https://uploads.strikinglycdn.com/files/dc9ca139-18de-43c6-9500-5864e6cf4ee3/nikon_coolpix_l310_battery_charger.pdf
    • https://s3.amazonaws.com/gozilum/cotton_ginning_pressing_project_report.pdf
    • https://uploads.strikinglycdn.com/files/23cc3a20-236b-477b-a688-30ef0d689ab9/what_foods_can_you_eat_on_the_21_day_sugar_detox.pdf
    • https://uploads.strikinglycdn.com/files/b694a9a8-41aa-42d4-abd2-0cd8ccea8f8a/34247492305.pdf
    • https://uploads.strikinglycdn.com/files/3ae4c652-a6af-4c67-ae9e-260e7cbb3871/apples_and_oranges_explorations_in_on_and_with_comparison.pdf
    • https://s3.amazonaws.com/bupijila/new_york_state_trooper_police_reports.pdf
    • https://uploads.strikinglycdn.com/files/38a92050-c628-4f5a-b6a7-4632bf07a9b6/everstar_portable_air_conditioner_mpm1-10cr-bb6.pdf
    • https://s3.amazonaws.com/busutafitufe/anticonformiste_mots_flchs.pdf
    • https://uploads.strikinglycdn.com/files/8159dd2c-ed6a-405c-81ef-c3ce07346c75/4094548175.pdf
    • https://s3.amazonaws.com/mevuzokekenojab/tufuvi.pdf
    • https://uploads.strikinglycdn.com/files/c60b8e71-34eb-44b6-ae3a-81f739c0ec31/30437833324.pdf
    • https://s3.amazonaws.com/kugelilizibuwum/fasowojitefaxa.pdf
    • https://uploads.strikinglycdn.com/files/1ae69f83-9c07-4f27-839d-e74080910d46/wildgame_innovations_camera_walmart.pdf
    • https://uploads.strikinglycdn.com/files/7e4b6979-dad2-4cd9-9b46-3612cce29532/how_to_pair_a_vizio_subwoofer.pdf
    • https://uploads.strikinglycdn.com/files/f8d177f0-5f84-4099-bbd7-1bbcaae1f249/62202281186.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f94d.bin
f91146fbf9c44c397a4086813c7678f9505bd6b798989ce40be0a8226d59434d
pdf-font-stream PDF embedded font (sfnt) at offset 0xF94D 5436 bytes
font_01_sfnt_off00010bc0.bin
e2f5d3ef3d159c4618a897938a4514967e3e9e15e90b00f9078329914e8d563d
pdf-font-stream PDF embedded font (sfnt) at offset 0x10BC0 1812 bytes
font_02_sfnt_off0001149d.bin
d80d6325812860d752531170b73e0e30bf4923d10795ad554f50765b8fa09908
pdf-font-stream PDF embedded font (sfnt) at offset 0x1149D 10604 bytes