Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e68d57fc630cc65…

MALICIOUS

PDF

75.3 KB Created: 2021-03-16 20:31:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cb4488c5bafe43b4a1157bf61568a7d SHA-1: 169c250f3afb2ae1879e27377f2379bd92048542 SHA-256: 1e68d57fc630cc659e0f2765e1884a3661ca20ca2d93aaf36692e9e6a2fe8c6e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, identified by ClamAV and ML classifiers as malicious. The URL is presented in a way that attempts to disguise its malicious intent, likely as part of a phishing or credential harvesting scheme. No scripts were extracted, but the presence of the malicious URL and high confidence scores from detection engines strongly indicate a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=pat+benatar+i+need+a+lover
    • https://cdn.sqhk.co/wakewafo/2GifSmv/84138025174.pdf
    • https://cdn.sqhk.co/nakunadubux/cjhsfIu/merge_town_online_unblocked.pdf
    • https://static.s123-cdn-static.com/uploads/4367912/normal_5fe025cc0e211.pdf
    • https://cdn.sqhk.co/pumopivosoba/ifoMgeA/75926770493.pdf
    • https://cdn.sqhk.co/kigoxeni/gghavlh/assassin_corp_mod_apk_free_download.pdf
    • https://cdn-cms.f-static.net/uploads/4455183/normal_601fc3720fa0f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kukazowox/do_you_need_a_degree_to_teach_english_in_spain.pdf
    • https://uploads.strikinglycdn.com/files/cf0910df-b6f6-4064-9265-530a77071775/modine_hot_dawg_vent_kit.pdf
    • https://uploads.strikinglycdn.com/files/3fabe3ba-8533-4225-a6bb-d22ebe723e0f/pioneer_mvh-x370bt_reset.pdf
    • http://waboxizolomove.rf.gd/macys_sale_today_sheets.pdf
    • https://uploads.strikinglycdn.com/files/6ae65a83-8dc4-4107-8e95-6ce3275b0929/kimivuxejorutovokubajofa.pdf
    • https://s3.amazonaws.com/zeworibuzoza/bcnf_in_dbms.pdf
    • http://talujef.rf.gd/math_answers_7th_grade.pdf
    • https://uploads.strikinglycdn.com/files/ae354c24-fa26-487d-87e8-de04926240b7/gre_verbal_practice_tests_free_online.pdf
    • https://s3.amazonaws.com/nevovumowa/aurora_school_edmonton_uniform.pdf
    • https://uploads.strikinglycdn.com/files/ee4a2b5a-f444-48a9-9912-b913d5f919a4/sukhmani_sahib_path_in_english_book.pdf
    • https://uploads.strikinglycdn.com/files/a0a3f1e9-c47d-4854-8ac5-aee2787e48ae/list_of_irregular_preterite_verbs_in_spanish.pdf
    • https://s3.amazonaws.com/bomifabipi/zogupojip.pdf
    • https://uploads.strikinglycdn.com/files/db30d482-1e50-43f4-96bc-89b1da80cf8c/how_to_turn_on_wps_on_pldt_router.pdf
    • https://s3.amazonaws.com/wiremeresegikon/distributive_law_multiplication_worksheets.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_off0000ea18.bin
c47fb94466776b045034ed803ccd1fd681fe929719cff9542bf083ccb9bf7122
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA18 4844 bytes
font_01_sfnt_off0000fa9b.bin
5b9590934298b10696d97cf11845cbc8546cf0f0bc00b8481c309dde60e5880e
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9B 11204 bytes