Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae46a8b7118780e4…

MALICIOUS

PDF

83.3 KB Created: 2021-03-15 01:15:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 3504dad0b92be363c60568cf4971dd7a SHA-1: eaee740599afeebc9ce41c63fcae9e5733e2c1b4 SHA-256: ae46a8b7118780e45676a087c7fb4232384b22d4d6051992bc9ef32f831695ab
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to 'https://golowaki.ru/strik', which is likely a phishing lure. The document body is heavily obfuscated, but the presence of external URIs and the overall detection suggest an attempt to redirect the user to a malicious site, possibly for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://golowaki.ru/strik?utm_term=social+psychology+concepts+in+the+blind+side PDF link annotation
    • https://cdn.sqhk.co/pifizumux/jcDhejd/spacex_crew_dragon_nasa_splashdown_time.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495686/normal_600ed6051e17a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443598/normal_6006603a6fa28.pdfIn PDF document text
    • https://cdn.sqhk.co/tesigasefaxe/k9hiids/regal_cinemas_movies_playing_today.pdfIn PDF document text
    • https://cdn.sqhk.co/busanurutar/jii6hb3/35363105537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415768/normal_603fb9bf1c663.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369927/normal_5fdc860dc75fd.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/hhaxhbn/pathogenicity_islands_in_bacterial_pathogenesis.pdfIn PDF document text
    • https://cdn.sqhk.co/lapefuxolu/VvRWO4Y/3d_crystal_puzzle_cinderella_castle.pdfIn PDF document text
    • https://cdn.sqhk.co/vimerokil/x0qjiRn/instagram_captions_for_selfies_short.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369779/normal_5ff58f3e29859.pdfIn PDF document text
    • https://cdn.sqhk.co/xoberuweri/hjCxgep/vagafalatonemifobapagi.pdfIn PDF document text
    • https://cdn.sqhk.co/gumojitoxowu/hQ62rF3/spinach_artichoke_dip_no_mayo_crock_pot.pdfIn PDF document text
    • https://cdn.sqhk.co/rosisole/hMKLahi/android_web_page_maker_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/livatunozasu/hjajaKA/zogamepixaxakobakuxevo.pdfIn PDF document text
    • https://cdn.sqhk.co/digodidazo/hhN0Wgl/bike_stunt_games_2019_mod_apk.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/dbcd58a3-795a-4841-94c0-76b41e585b94/debagaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b98aed11-ca3a-4a5d-a722-ac1a70b5dd9f/60408658288.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78a742d5-bf86-4534-9c14-57ec3acc9ac9/36468470024.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7905b407-213d-4e89-a3eb-12f5f329c2f6/how_cars_work_podcast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7df0acf3-b11a-4b36-a285-71626cb42438/what_happened_to_the_tripods_in_war_of_the_worlds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6980d44-1b9d-46e9-adcb-dbad582fe435/guwakonijikatupuboxuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24489783-cd15-49ff-99cc-cc350d902675/72790302343.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab2e63e3-7577-44b3-b695-ccb17abe708f/95411437087.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_off0000fae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE3 5372 bytes
SHA-256: 13bde8aa78d3be9206e6ef142f5a42891c058e22165488017ef01e2c530afbff
font_01_sfnt_off00010d08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D08 10580 bytes
SHA-256: 27530beca84cd917ed51af73a0480ea4847aee874d536b2c76eb8924213d2712
font_02_sfnt_off0001313b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1313B 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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