Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03abe8445ef628d…

MALICIOUS

PDF

75.9 KB Created: 2021-04-05 06:06:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 44f8fe44b4f7e60d1716bb1544048913 SHA-1: 4320a4674fd90d69eaacae21866791a506c799b7 SHA-256: e03abe8445ef628dbcafe8f9ba53bad13a74c416b08bbeaf48887ca818fff07e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure for a printer driver download. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, potentially for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/strik?utm_term=fedex+zebra+zp+505+epl+driver PDF link annotation
    • http://vekeludin.iblogger.org/vugonufesuse.pdfIn PDF document text
    • http://novuzigekisev.iblogger.org/rovokatimerofidazimami.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://uploads.strikinglycdn.com/files/18a100fe-d51e-4eac-a132-a9b1e58b8430/how_to_crack_microsoft_project.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/pojoviwumegagezomokedakuv.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/bichagadu_naa_songs_com.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e798ef72-c514-4014-9de3-f8391931d95f/speakeasy_ramen_springfield_oh_45505.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/sony_ht-ct370_remote_code.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/how_do_i_program_a_rca_universal_remote_to_my_vizio_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/what_is_the_outdoor_code_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/10_maths_half_yearly_answer_key_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/37713416460.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4d88ef2-06f6-43c6-a27c-3c1ecb243010/68227329565.pdfIn PDF document text
    • http://zatajuvezutulo.rf.gd/mamofe.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/vujesimem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6b96ed8-322c-416c-8b0b-6d361da87ce7/sonalosukazofasidami.pdfIn PDF document text
    • http://gigajavegofuzok.rf.gd/tedamobe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49d60a0e-0420-4c3a-8e3d-cd92fde23a32/88696869502.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05192c1e-50a7-4ed7-af09-b29157d721d8/geronimo_stilton_book_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dead489-7087-452f-8c5d-504015e8c4b6/letra_y_musica_del_toque_de_bandera.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/jasazadogugevapusiwane.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12dcdf6c-5408-4a39-a4b6-d72661d02cda/does_the_infant_optics_dxr_8_record.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF27 4808 bytes
SHA-256: abe64948189c33c7181d6d5001d2017dd47ef4684cb3e78099cdd87c59db8278
font_01_sfnt_off0000ef8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8F 10760 bytes
SHA-256: 8c683cd72dcff1b2cb12e6940dab2337b86396b680469c20113e46a7ec9a30f9
font_02_sfnt_off0001146f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1146F 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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