Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c41eb2ccc2f0cca…

MALICIOUS

PDF

67.2 KB Created: 2021-04-07 21:21:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 5e44f7980af2ae7705493910054bf60f SHA-1: 23a02ac97d09602ea1b5533515062a2e065bcdc9 SHA-256: 7c41eb2ccc2f0cca7960874a9d2210b0b9b63d305e104aa9417e2ad459a86b62
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to host a phishing page or download further malware. The document body, though heavily obfuscated, appears to reference 'Nixon watches zumiez', suggesting a lure to attract users searching for those terms.

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://lozipotod.ru/aws?utm_term=nixon+watches+zumiez PDF link annotation
    • https://cdn.sqhk.co/rarirawibowo/if14jeb/world_basketball_championship_game_y8.pdfIn PDF document text
    • https://cdn.sqhk.co/fegojujor/fRY36OY/91361748732.pdfIn PDF document text
    • http://mofemaruwek.sportsontheweb.net/statistical_quality_design_and_control_contemporary_concepts_and_methods.pdfIn PDF document text
    • http://fadewujetenuve.mywebcommunity.org/wadapifemuwunare.pdfIn PDF document text
    • http://giwosoto.sportsontheweb.net/50643054963.pdfIn PDF document text
    • https://cdn.sqhk.co/nufesewepi/hj5jbjc/download_warplanes_ww1_sky_aces_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pebekaja/2ifzYk6/biker_mice_from_mars_throttle_and_charley_fanfiction.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/ib6FDAK/10121129022.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fanalejowegop.atwebpages.com/74965547149.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/wusebaweputusatibu.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/90075507809.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/tafetogiwuvizudewob.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/are_ryobi_attachments_interchangeable.pdfIn PDF document text
    • http://sajatuvireguta.atwebpages.com/70450127316.pdfIn PDF document text
    • http://nodikaduf.onlinewebshop.net/26222719506.pdfIn PDF document text
    • http://zejibanunepi.myartsonline.com/how_did_the_amnesty_act_of_1872_influence_reconstruction_brainly.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/indian_army_new_wallpaper.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC5 5092 bytes
SHA-256: 8f4c7523b2c8b1479cbdbdc088b6a3249b61d1856fb79e71ba8088eb07ff9804
font_01_sfnt_off0000de13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE13 10004 bytes
SHA-256: 3ae0d2f923e35201efc2622ede05235c7013e293225fbb09b80d9d905e76710a