Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee5511850c33cb1…

MALICIOUS

PDF

280.9 KB Created: 2021-04-21 11:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8995b8ce6fd29a33a7cc36c7b64b866f SHA-1: b6f7e2609a1801f561931ab2ed2f5b2df0b155e3 SHA-256: aee5511850c33cb169cea47e2c57f16565ba6c4db509790a09dfdb7b3cca99b6
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'Dragon ball total manga sales', which is likely a pretext to disguise the malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9698

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/strik?utm_term=dragon+ball+total+manga+sales PDF link annotation
    • http://dokukuke.mypressonline.com/apsrtc_physically_handicapped_bus_pass_application.pdfIn PDF document text
    • http://mujododaziwato.scienceontheweb.net/10843094731.pdfIn PDF document text
    • http://getporte.xyz/who_makes_onn_brand8oohv.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • https://cdn.sqhk.co/buzosefif/6jfieK0/cast_of_vikings_season_6_episode_10.pdfIn PDF document text
    • https://cdn.sqhk.co/nexasolonit/RCrUhbm/mukujozuzumabipiw.pdfIn PDF document text
    • http://doridusa.medianewsonline.com/45163910899.pdfIn PDF document text
    • http://trynon.xyz/what_does_a_geotechnical_engineer_do_in_mining6vb99.pdfIn PDF document text
    • http://daxamel.mywebcommunity.org/goodbye_air_supply_piano_sheet.pdfIn PDF document text
    • http://myfirstsite.xyz/44533540463kch54.pdfIn PDF document text
    • http://english-10.site/driving_zone_germany_apk_para_hilesi6rb3b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://romepasuv.myartsonline.com/zologak.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/zilun.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/23642394710.pdfIn PDF document text
    • http://xugekevilop.rf.gd/6008266764.pdfIn PDF document text
    • http://nevafofuvabovid.atwebpages.com/pamutejugufopij.pdfIn PDF document text
    • http://firiviwitike.epizy.com/pizzeria_da_marco_delivery.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/is_mechanical_pencil_lead_dangerous.pdfIn PDF document text
    • http://bagugexasorip.myartsonline.com/kilelimizanaze.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/championship_manager_3_android.pdfIn PDF document text
    • http://zimadiwiv.rf.gd/advertising_promotion_and_new_media.pdfIn PDF document text
    • http://tuzibepunu.rf.gd/game_android_mod_apk_data_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/auditoria_externa_definicion.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0001b1c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B1C4 200668 bytes
SHA-256: becf9d24ea0def9d890cc2e62191dba94031eac1ebc01aa3a0270857b5a88f71
font_00_sfnt_off0001a179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A179 6588 bytes
SHA-256: c6acebe3750ab55c09714fa1b34f6c70ddae3ce202e1a088ffcbc34adab53285
font_02_sfnt_off0003ffd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FFD4 5144 bytes
SHA-256: 61c6538071ebb9efac7ce8cbc4567820f057f35e9a3ce1ef42df0bceb1469f14
font_03_sfnt_off00041140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41140 14976 bytes
SHA-256: 25a63b3329534bf1c77f9d64473d41aabb9d4e2127cd5af9ec8ae051e0a9a2b3
font_04_sfnt_off00043f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43F12 16120 bytes
SHA-256: e8b7bf697cba0d2aa07c43e4275b090eaed1d7cc8cf522c287e0773ddebf5313

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