Malicious PDF — malware analysis report

Static analysis result for SHA-256 58a913d61a21e449…

MALICIOUS

PDF

213.4 KB Created: 2021-03-24 05:47:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d775aa75a58b167f073ca499e2713672 SHA-1: dfe44bd6e1e26b58ebb91763fc0b416d3bffea90 SHA-256: 58a913d61a21e4495eaaaad0d4dc7fe391533bd6774677838371c570bbd20c85
144 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is a phishing and advance-fee scam lure, using urgency language to prompt user action. It embeds an external URI pointing to a suspicious domain, likely intended to deliver a malicious payload or lead to a phishing site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to trick the user into downloading further malware or divulging sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://lozipotod.ru/wix?keyword=master+chief+frakers+study+material
    • http://goladelexugezi.sportsontheweb.net/37421939411.pdf
    • http://zhk-rekord.info/kuliwujilofevaginibomib4dp65.pdf
    • http://henrysavbr.site/17396440200c52do.pdf
    • https://pukogapuwobar.weebly.com/uploads/1/3/4/3/134307851/soxaruvanefate.pdf
    • http://milanomoda.site/guess_the_emoji_movie_level_348bsir.pdf
    • http://pubguckazan.com/exhaled_gas_that_is_a_waste_product_of_cellular_metabolismbhdce.pdf
    • http://rowowesofazov.medianewsonline.com/kujeso.pdf
    • https://kigukudisan.weebly.com/uploads/1/3/5/3/135321724/nudolajelud-pajekogazane-bolasifew-gerakovob.pdf
    • https://static.s123-cdn-static.com/uploads/4376856/normal_5fcf7541007e6.pdf
    • http://boomerangoo.site/48149528866hh5ja.pdf
    • https://pejegenipejixe.weebly.com/uploads/1/3/4/8/134848799/c2a858b95d270.pdf
    • https://talovilivakalod.weebly.com/uploads/1/3/5/3/135326419/bac2d490d4a.pdf
    • https://cdn-cms.f-static.net/uploads/4365607/normal_6014a0523fa65.pdf
    • https://cdn-cms.f-static.net/uploads/4402504/normal_6045153ad1788.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/6cec12d0-2dc0-4063-b578-d8ac0e90a1d4/2002_lexus_es300_battery_walmart.pdf
    • https://s3.amazonaws.com/wejuvono/child_nutrition_label_for_tyson_chicken_nuggets.pdf
    • https://uploads.strikinglycdn.com/files/ae62de26-f12a-4ac5-b892-93b8c1313af0/ejercicios_ingles_basico_para_nios.pdf
    • https://uploads.strikinglycdn.com/files/70dc0972-f8da-4f51-a72a-0f8dd1cb352c/server_training_manual_fine_dining.pdf
    • https://uploads.strikinglycdn.com/files/f93db9a3-09e9-48c4-9115-d20ca38de429/kufonitiwug.pdf
    • https://s3.amazonaws.com/rurovikejigibu/how_is_general_average_calculated.pdf
    • https://s3.amazonaws.com/zexozavo/mtd_36_mower_deck_belt_diagram.pdf
    • https://s3.amazonaws.com/vuterijoze/day_trading_and_swing_trading_the_currency_market_3rd_edition.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003005a.bin
496fc878923043a05785984a13bc90ec2ffab9e34d76cb8ddeab355b1f58e8d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3005A 5100 bytes
font_01_sfnt_off000311b5.bin
bb5f08f584bf623774929dd3890ef42a1e3bc9e621a8b89278a788a89e300c0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x311B5 11428 bytes
font_02_sfnt_off00033881.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33881 4324 bytes

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