Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4d874a3dc20f10…

MALICIOUS

PDF

111.3 KB Created: 2021-04-03 09:16:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 1071e5aed1fe4730aac2a6b269d6d8cb SHA-1: 26ac5513d8eb4f3beec8372d79c6657754d13359 SHA-256: 7d4d874a3dc20f1091490949b4c278a061e35b5f350a5d7035f3178fe471119c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or malware. The document body, though partially corrupted, suggests a lure related to appliance repair, a common tactic for phishing or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fokemale.ru/strik?utm_term=ge+refrigerator+ice+maker+not+working+after+power+outage PDF link annotation
    • https://cdn.sqhk.co/metexemoraga/jKRhbQB/human_stacking_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/ragejeli/h0ggsjE/bijif.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/cjcuDL6/ice_hockey_goalie_camps_2019_michigan.pdfIn PDF document text
    • https://cdn.sqhk.co/lusoxepero/hCoF2QD/age_of_empire_android_free.pdfIn PDF document text
    • https://cdn.sqhk.co/lalivaga/jMhffH1/carx_drift_racing_2_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/zokuwagopole/3QhDdfG/dj_song_mix_gana_video.pdfIn PDF document text
    • https://cdn.sqhk.co/jojevirelo/JmY4Bjh/65859254923.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/e5jgibM/name_the_celebrity_safe_house.pdfIn PDF document text
    • https://cdn.sqhk.co/wawabosamugo/jbjgYT1/70913874462.pdfIn PDF document text
    • https://cdn.sqhk.co/dawafawux/g8AjjVF/the_legacy_apartments_san_antonio.pdfIn PDF document text
    • https://cdn.sqhk.co/nefakovuwot/hjjgjkE/40104852757.pdfIn PDF document text
    • https://cdn.sqhk.co/bofilewidil/87D92if/23558350124.pdfIn PDF document text
    • https://cdn.sqhk.co/noneniwetav/ihcihgj/gudosemu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/d4809bb3-b9ff-4a01-88c0-e29d07c7af48/how_to_train_your_dragon_2_song_if_you_will_marry_me.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/ribezojajidukate.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/timeline_template_powerpoint_2007_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/wapdam_ethiopian_music_video.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/76469104812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6057bb52-1f3b-4f23-b397-6db1d7830b77/lexus_rx_350_prices_in_nigeria.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/xisudajoviwekimib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b620312b-1931-4099-abb0-1ae2c3c9aa38/distance-time_graphs_9k_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/89076633999.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/hoover_linx_cordless_stick_vacuum_battery_life.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/deep_breathing_exercises_anxiety.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc2705c4-5292-4e68-8caa-c7e7fc6a076c/19505200785.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16967 5196 bytes
SHA-256: f76dfc7a17f8f6fd140dd5906aa5e8e1a369da3657807591ba98cbba9d386b23
font_01_sfnt_off00017b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B1B 11204 bytes
SHA-256: b7e88948df0d62f926591f6660a3c463b02339145552a4bb17a964323c0bec3e
font_02_sfnt_off0001a11d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A11D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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