Malicious PDF — malware analysis report

Static analysis result for SHA-256 802efc5fbe514308…

MALICIOUS

PDF

77.7 KB Created: 2021-03-30 23:32:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6284fad6fb14d3264f5ecf7804d72fd9 SHA-1: 6ae63cc751b9f26ddd5e4b117f438d194343eece SHA-256: 802efc5fbe5143084ffb581b62a24a2bceec5342dee85abd0e41ada463b7ca0c
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though partially corrupted, references a troubleshooting topic, suggesting a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/strik?utm_term=crosley+won%2527t+turn+on
    • https://pelepidavivi.weebly.com/uploads/1/3/1/4/131454492/rifajuvezil.pdf
    • http://vufiwopader.medianewsonline.com/86337746718.pdf
    • http://linunewilut.mywebcommunity.org/wogedezobavij.pdf
    • http://finipupote.mywebcommunity.org/biotecnologia_industrial_volume_4_download.pdf
    • https://mafenipo.weebly.com/uploads/1/3/4/8/134879688/131b6.pdf
    • http://wugumonisukanib.sportsontheweb.net/gizibowevafatozowidafuk.pdf
    • http://bebalezuve.medianewsonline.com/puxuduluxit.pdf
    • http://tujukesabegakom.mygamesonline.org/43874031202.pdf
    • http://zusagukitu.mywebcommunity.org/big_love_fleetwood_mac_tab.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/fd308cbb-9608-491e-b154-8e5050a43911/ruqyah_shariah_mishary_rashid_mp3_download.pdf
    • https://s3.amazonaws.com/xutomoxu/maze_runner_movie_download_in_hindi_300mb.pdf
    • https://s3.amazonaws.com/rojalexipokadaz/fazewonakob.pdf
    • https://uploads.strikinglycdn.com/files/856b98cd-31c0-4d68-96be-91e10b9bf37b/45571378631.pdf
    • https://uploads.strikinglycdn.com/files/235766f3-8db9-475c-8fc1-e90e15034df5/cat_in_the_hat_cast_fish.pdf
    • http://wiloradakuno.onlinewebshop.net/14283685962.pdf
    • https://s3.amazonaws.com/bidurudilidujug/latebuzirag.pdf
    • https://s3.amazonaws.com/lemerisinivum/video_blender_app_for_android.pdf
    • http://raxegujanamefas.atwebpages.com/puwopafuxurakininelo.pdf
    • http://dokudaruriwiv.atwebpages.com/leon_gordis_epidemiologia_descargar.pdf
    • https://uploads.strikinglycdn.com/files/113b3f75-7a52-4289-863d-1d7421502ed4/how_much_coffee_do_i_put_in_a_12_cup_mr_coffee_maker.pdf
    • https://s3.amazonaws.com/wunojipu/uniform_acceleration_worksheet_4_answers.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3bf.bin
1dbfa2b9af3b63c36dfeecd6417e808aee6e8224dcd85272572fad6564ce8709
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BF 4600 bytes
font_01_sfnt_off0001038c.bin
de669d3c237acced1495cbfff8fb82d4815543924edd136a7e6cdc906a5bb929
pdf-font-stream PDF embedded font (sfnt) at offset 0x1038C 10688 bytes