Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9ae9f172c588159…

MALICIOUS

PDF

73.4 KB Created: 2021-02-19 03:45:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 15a23862dbdb211aa8cec8c5005f3a87 SHA-1: fe5486beb148ad3768946da05f38899b46251dfa SHA-256: f9ae9f172c5881595fcd021de65f1c3d0740ef55ae6f6949c34ae1f43ed02318
156 Risk Score

Malware Insights

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

This PDF document contains numerous external links, many of which are obfuscated or lead to potentially malicious sites, indicating a link farm or phishing attempt. The presence of a critical heuristic firing for PDF_SEO_LINK_FARM and ClamAV detection as Pdf.Phishing.Trojan suggests a malicious intent to redirect users to harmful content, likely for credential harvesting or malware distribution. No scripts were extracted, but the document's structure and URL patterns are indicative of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=infamous+second+son+pc+download PDF link annotation
    • https://norusukesalija.weebly.com/uploads/1/3/4/3/134356509/3e734351b2.pdfIn PDF document text
    • https://cdn.sqhk.co/soxoxefumuv/dmjjNhd/loreker.pdfIn PDF document text
    • http://centerverifybadge.com/vadibakoxudugivuxogawmpi.pdfIn PDF document text
    • https://cdn.sqhk.co/xizemeginu/lifhdND/emergency_driver_jobs_city_hero_ems_game_schedule.pdfIn PDF document text
    • https://cdn.sqhk.co/najiligopej/biijdKX/cat_jumping_on_car_meme.pdfIn PDF document text
    • https://cdn.sqhk.co/rugugojeba/ghWYQoY/die_together_song.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/GZNphbg/29266395233.pdfIn PDF document text
    • http://rineset.xyz/quran_in_english_application_download7fawa.pdfIn PDF document text
    • https://cdn.sqhk.co/vawadawuleja/fjguujj/legends_football_league_coach_salary.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/ihg6ghS/64210604458.pdfIn PDF document text
    • https://cdn.sqhk.co/kejopala/5E4eCFH/nojerajefitetafuxekinani.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/4UA2wPN/dry_ice_blaster_rental_seattle.pdfIn PDF document text
    • http://lnstagramsupportinfo.com/5033245205575ra1.pdfIn PDF document text
    • http://richmaya.site/what_are_the_characteristics_of_each_zodiac_sign9d0h7.pdfIn PDF document text
    • https://cdn.sqhk.co/zovitamojim/gihvvgf/transno_outlines_notes_mind_map.pdfIn PDF document text
    • https://cdn.sqhk.co/pobijejok/heVibc4/vaviziludajixipekuxisotom.pdfIn PDF document text
    • https://cdn.sqhk.co/vumuwuxa/jrmyjj3/26805011935.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://s3.amazonaws.com/pafiganovavi/busotofo.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/cnn_philippines_anchors_and_reporters.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_off0000d5ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5EE 4988 bytes
SHA-256: 976c1ac41e92dac216029748bdd6b33a7a39251eee524237e6872a1720e7e352
font_01_sfnt_off0000e6d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D9 10296 bytes
SHA-256: 4525985f299ae6b63bc00c75878899ebef4a47135d598f5755ef34ef17fab8f5
font_02_sfnt_off000109f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109F4 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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