Malicious PDF — malware analysis report

Static analysis result for SHA-256 b97ac03cad900022…

MALICIOUS

PDF

85.3 KB Created: 2021-03-23 06:52:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: b0f93a353936cdd3df6a38715e864599 SHA-1: f04e65598cb0353997d48166a6b5b55d7b60336c SHA-256: b97ac03cad9000227fba4968207ed06d48b3361fb12fc04735bc19af75ffd6f7
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a heuristic indicating an external URI. The embedded URL `https://midufefew.ru/123?utm_term=cptpp+vietnam+report` is the primary indicator of malicious intent, likely serving as a phishing lure or a download source for further payloads. The document body, though heavily obfuscated, suggests a report context, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://midufefew.ru/123?utm_term=cptpp+vietnam+report PDF link annotation
    • http://xodawasolu.iblogger.org/tbd_full_form_in_asia_cup.pdfIn PDF document text
    • https://tamejozapana.weebly.com/uploads/1/3/2/8/132814544/savilivumajara.pdfIn PDF document text
    • https://fakazurirogedim.weebly.com/uploads/1/3/4/7/134743668/10c816d94be.pdfIn PDF document text
    • https://manatelagaren.weebly.com/uploads/1/3/1/4/131437493/7318491.pdfIn PDF document text
    • https://vopilejuwe.weebly.com/uploads/1/3/1/4/131407469/6770336.pdfIn PDF document text
    • https://kurinasuvofete.weebly.com/uploads/1/3/5/3/135334761/nopuwebuxukexevuw.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/zetubakuz/steering_committee_decision_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87e76060-f0af-4178-8a2f-f2502bd897f2/megowimupigubaref.pdfIn PDF document text
    • https://b2691e05-be35-46d2-a26d-08c503de0475.filesusr.com/ugd/b15c0b_d95fe9cf11c846c1ada304efa3265329.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zulezov/worldwide_cost_of_living_index_2020_in_hindi.pdfIn PDF document text
    • http://witosef.rf.gd/biological_control_of_insect_pest.pdfIn PDF document text
    • http://nixelotiseze.epizy.com/gekowuderisijupevokini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f194458-03de-4336-98de-3863bf492f98/5383660597.pdfIn PDF document text
    • http://sabozovitebem.rf.gd/t_shirt_design_template.pdfIn PDF document text
    • http://japusorusepex.rf.gd/bombas_hidraulicas_de_paletas_parker.pdfIn PDF document text
    • http://zapulozamatuwe.epizy.com/how_to_use_a_keurig_mr_coffee.pdfIn PDF document text
    • https://5d3a3edc-1384-4eb0-a354-174dd54c13aa.filesusr.com/ugd/7f5dc5_16fae351a86f4928bed890e9f03dd0dc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/introduction_to_probability_and_statistics_for_engineers_and_scientists_4th_edition_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76b63f4f-47aa-4d0e-a2cb-60bede5dbdff/puxojajodegefam.pdfIn PDF document text
    • https://063758de-fb2f-4258-809e-b727485bfd5a.filesusr.com/ugd/89cda4_1ede363faf3c48aa89a5e94085af7bdb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/ko_ko_korina_original_song.pdfIn PDF document text
    • http://fasokefukolu.epizy.com/83001173701.pdfIn PDF document text
    • http://kemuvatixas.epizy.com/lamborghini_song_instrumental_ringtone_pagalworld.pdfIn PDF document text
    • http://wowadepadon.rf.gd/31556430650.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/92347571191.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_off00010e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E3F 4720 bytes
SHA-256: 84238c20d88bd834ed3cf7059cebd1df7f4873f7a34485e315ed6088f03b8034
font_01_sfnt_off00011e37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E37 11644 bytes
SHA-256: cb0c8f75510d3dc72690cc4ac5115881098c4654e109fa452fa1084f6edbec2c

Open this report in the interactive analyzer, or submit your own file for analysis.