Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f5fedb99c5bea55…

MALICIOUS

PDF

281.1 KB Created: 2021-03-11 05:22:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bb1f0d701bdf58795c1ac70a194f5bcf SHA-1: c56a1fdd1dc23c1c5d47cb5a22b58d272677f967 SHA-256: 6f5fedb99c5bea555c5769f5ee9dd6535179e5c1802493458da18b5094636993
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a seed-phrase/secret-recovery lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

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
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://xezojetit.ru/123?utm_term=web+template+html+resume PDF link annotation
    • http://gemofesane.medianewsonline.com/borland_c_builder_6_developer_s_guide.pdfIn PDF document text
    • http://nipijapogila.sportsontheweb.net/gold_gym_treadmill_lube.pdfIn PDF document text
    • http://wudebakafepi.mypressonline.com/xokofebijotavusemokunales.pdfIn PDF document text
    • http://zujadise.scienceontheweb.net/ap_statistics_textbook.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/higehVq/guitar_hero_drums_work_with_rock_band.pdfIn PDF document text
    • https://cdn.sqhk.co/savimatuv/jijjhja/jusekeludonoburije.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/what_is_a_composite_score_wisc.pdfIn PDF document text
    • https://cdn.sqhk.co/juvowisire/DgiJgej/kikuxisipijapalesezab.pdfIn PDF document text
    • https://cdn.sqhk.co/nivurerazusa/pieid6k/nitejibojulukoku.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/rokuwapesu/important_question_answer_of_the_house_call.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/tawugipaziwomerazexunuzal.pdfIn PDF document text
    • https://29159626-56e2-4eb2-a8c1-eb081f451e44.filesusr.com/ugd/a58502_7ff1c970a97f4e5388236b3b9eced090.pdf?index=trueIn PDF document text
    • https://2a403a33-5f6e-4534-96f9-742aa7325afc.filesusr.com/ugd/d2da83_c72b84b47c334a7eb58cd34677b28040.pdf?index=trueIn PDF document text
    • https://ef9935f7-a918-44a1-999f-f1d50a45e4a7.filesusr.com/ugd/b463f2_86facd1b12e14cdaab76101a1a001d6e.pdf?index=trueIn PDF document text
    • https://70fbc5f3-53e4-4072-9ff7-a5862d19847b.filesusr.com/ugd/bb3bf9_c68b8aed909f4e8db1015f20dd81d72b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/donarepemi/does_eating_no_bread_help_you_lose_weight.pdfIn PDF document text
    • https://011f98f8-b45f-4578-a2fd-466b530f7845.filesusr.com/ugd/74e905_8ba1b2b6208e4a6d8d96ff656aa85a61.pdf?index=trueIn PDF document text
    • http://pidodexogejax.myartsonline.com/us_army_flag_patch_upside_down.pdfIn PDF document text
    • https://fac30f9c-1bc3-4ff6-ac40-7ced1d2a170b.filesusr.com/ugd/3b7182_6c13402fe02547d698539643cf89019d.pdf?index=trueIn PDF document text
    • https://113c517c-d7b0-4b36-99d7-6722bcb7ef36.filesusr.com/ugd/8e66a5_4edd96f7585640d99af1b08ff35f32cb.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40AA5 4832 bytes
SHA-256: 853a6b70a7a965ee4f9e67df890eac88538809db15203e98a3fbf0f50a74af66
font_01_sfnt_off00041b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41B11 13604 bytes
SHA-256: 1092a822fb4590ee7680d291aa27a60615361ce3803ddb169cec2ea443d477b1
font_02_sfnt_off000446e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x446E1 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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