Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cc0a1da2a81ed72…

MALICIOUS

PDF

79.4 KB Created: 2021-04-03 15:16:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: c678c0ed0788c31be943be9d01cf1fdb SHA-1: 3abec593a6e9091b6072e757f7b3340af90b3ad1 SHA-256: 1cc0a1da2a81ed72e3b642f85f23b6c08e86e682c8456fa2272fdb0c51c325d4
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. Although no scripts were extracted, the presence of external URIs and the ML/ClamAV detections strongly suggest malicious intent, likely to redirect the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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://nipisod.ru/wix?keyword=savage+worlds+creating+races PDF link annotation
    • https://cdn.sqhk.co/mekaxosur/byiakKO/twitter_download_for_pc.pdfIn PDF document text
    • http://afracheat1.xyz/68327109498brgjk.pdfIn PDF document text
    • https://cdn.sqhk.co/vutowogipu/aEidxii/simcity_buildit_cheat_codes_ipad.pdfIn PDF document text
    • https://cdn.sqhk.co/jizapamilizo/tgjii0O/online_shopping_application_in_us_citizenship.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450338/normal_6011daf74542a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455207/normal_6008495b6dadc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428335/normal_606835d9e4327.pdfIn PDF document text
    • http://ionatr.space/kenmore_elite_dishwasher_wont_power_on01bow.pdfIn PDF document text
    • http://bloodcraft.online/beautiful_life_crush_piano_sheet_musicv52d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451044/normal_6059a3cdbb0ae.pdfIn PDF document text
    • http://storedubai.shop/collins_proline_21_vs_garmin_g3000tk732.pdfIn PDF document text
    • https://cdn.sqhk.co/lopijikuvi/jgrwijs/retro_space_war_galaxy_attack_alien_shooter_games.pdfIn PDF document text
    • https://cdn.sqhk.co/fanabezom/Z9hYhf7/putipawidozuwatodit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383913/normal_5fda15ad894d4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/abox_a4_android_7._1_tv_box.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/free_stonehenge_audio_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/aplikasi_bri_mobile_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/revudipax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c033c2f-1de2-455d-838a-cc9497ce3499/muxijapenovo.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/xaxamexuzuvevelenomoga.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/95455580367.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5f75e21-b3a6-4f33-a61f-1f970d2a7382/zagg_keyboard_ipad_air_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/bekupajoxadepizunezugop.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/free_android_emulators_for_pc_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/fazefuvawedukaj.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/fogeluxofakegopeverer.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E2 5360 bytes
SHA-256: 8a62bd3c299cb23e312ea062f4511971a145c36a896d0978cf6a938a885d3fa2
font_01_sfnt_off00010a41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A41 11112 bytes
SHA-256: e622ad4d73a0ac019156301c451146d0f926589e3093edcfaf658ac80585c03e

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