Malicious PDF — malware analysis report

Static analysis result for SHA-256 afd6b4b57aa0df30…

MALICIOUS

PDF

82.3 KB Created: 2021-03-11 18:27:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47ecac6a0d7ddf723ee6aa4015e420a2 SHA-1: 2928afe155f07f42cb90fc8af2e46d8fc339b2eb SHA-256: afd6b4b57aa0df30558019088556fe1a0d8927fb3d6baa45e5a4a3f079f44c87
96 Risk Score

Malware Insights

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

The file was detected 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 redirect the user to a phishing site. The document body, though heavily obfuscated, contains keywords that suggest a lure related to "Adventist beliefs" to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://maypoin.ru/award?keyword=adventist+beliefs+pdf
    • http://antonioit.fun/lenovo_tab_2_a7-3015iz0.pdf
    • http://jilet1.club/maple_leaf_rag_sheet_music_easympyus.pdf
    • http://bluebadgeform.com/ysaye_sonata_3_sheet_musicvidjo.pdf
    • https://tijaworiluwulu.weebly.com/uploads/1/3/4/3/134363233/wisujoju.pdf
    • https://razomidubijime.weebly.com/uploads/1/3/4/3/134395635/zezijo_mupolafaxevajiw_vavalasevufuv.pdf
    • http://watizizilumu.22web.org/generate_debug_apk_react_native.pdf
    • https://vapevaka.weebly.com/uploads/1/3/1/4/131407737/weladuxebo.pdf
    • https://sozatoma.weebly.com/uploads/1/3/4/4/134484551/suxawugutigesu.pdf
    • https://moramiwise.weebly.com/uploads/1/3/4/7/134736235/2159376.pdf
    • http://damvglaz6.xyz/simple_house_rent_agreement_format_in_wordeankt.pdf
    • http://bluebadgeform.com/why_child_led_play_is_importantizq0w.pdf
    • https://levarimabogi.weebly.com/uploads/1/3/5/3/135328943/pazavizipe.pdf
    • https://zikagedatudupoz.weebly.com/uploads/1/3/4/2/134266226/rudedu-dinin.pdf
    • http://kobasobapina.22web.org/gufopokegobada.pdf
    • https://nudomituge.weebly.com/uploads/1/3/4/6/134677479/jodaboligowenas_niwaniwu_gisobawezelela_ruvave.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/af55d0dc-6fb6-4656-8612-f80ea1fbb8dc/what_is_enron_the_smartest_guys_in_the_room_about.pdf
    • https://uploads.strikinglycdn.com/files/47d6440d-99e2-49f2-a305-8079ce668ca7/nasarorotaworokefowiguwu.pdf
    • http://towupew.epizy.com/mufulikufamewobuvax.pdf
    • http://lasuwutiganije.rf.gd/baal_veer_ka_natak_free.pdf
    • https://uploads.strikinglycdn.com/files/f56f6195-bb46-4bd3-95e1-d50f65b20492/how_to_record_on_dish_hopper_duo.pdf
    • http://wasalesex.epizy.com/konudupemun.pdf
    • https://uploads.strikinglycdn.com/files/f73b348d-8043-4e66-b842-86c0c364589a/kozoravaferowumoke.pdf
    • https://uploads.strikinglycdn.com/files/941977de-4fea-4f43-b023-eb0e7cebe551/3890703848.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_off000103fd.bin
e565f00505dd3764a5d6a9de871b4be72b7f1e8f0bbd924930471a2d82205e61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103FD 4916 bytes
font_01_sfnt_off000114d2.bin
a6d1648e2ee333acb98bb57cd4918be9f58940d95d01fcaa9175bd91251aa782		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114D2 11816 bytes

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