Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ecd609f0908644…

MALICIOUS

PDF

78.7 KB Created: 2021-03-21 05:12:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 2bf759bfbcb47c1a24a0d7c2119dc8ea SHA-1: 9baea7f911e043a52ee21922a9476cf697ab16db SHA-256: 56ecd609f0908644b117b20a94cda1a0a7bd722c60fc5380014df87656f1d9fd
154 Risk Score

Malware Insights

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

The PDF contains a link to 'dafemum.ru' which is flagged as a malicious redirector, likely serving as a lure for users seeking 'terraria apk download'. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of malicious links suggest an attempt to deliver a payload or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://dafemum.ru/wix?keyword=terraria+apk+download+full+version+2019 In PDF document text
    • http://silvanozito.online/86936348028ree1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418197/normal_602bf9a2d1de7.pdfIn PDF document text
    • http://dress-russia.ru/what_does_psalm_23_verse_3_meanywx1g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413226/normal_5fcb63ed5cc0b.pdfIn PDF document text
    • http://dexaputanit.mygamesonline.org/how_big_is_1_10_scale_rc_car_in_cm.pdfIn PDF document text
    • http://mexicotop.xyz/wavelet_transform_python_githube2122.pdfIn PDF document text
    • http://subejewumo.scienceontheweb.net/20865176621.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/pawaxisutovezilemumisilen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445129/normal_600cc5773e62c.pdfIn PDF document text
    • http://morj.space/21178157761rgrwb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408582/normal_6034ca6b5d51a.pdfIn PDF document text
    • http://getchambre.xyz/xijapazibidexifubuzerobolhq83.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/bitizopovopaso/64370979224.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/onkyo_remote_codes_for_spectrum.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/brochure_about_drugs.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/genukupuxawadeb.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/quadratic_equation_definition_class_10.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/job_applicant_letter_format.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/43757872142.pdfIn PDF document text
    • https://s3.amazonaws.com/dogevazapiwediw/flowers_for_algernon_progress_report_14_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/funniest_kid_test_answers_part_14.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/7549740637.pdfIn PDF document text
    • https://s3.amazonaws.com/popisiburewixuj/xejumifupovumiju.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_off0000e854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE854 5684 bytes
SHA-256: d065fc339958b522855a9bc8efc0b2c0b12098445d644986b7f99b76e6bc7d9e
font_01_sfnt_off0000fbd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD4 15464 bytes
SHA-256: 688838b8ba95613ae04e6186d514c3167566312fa7a4bd2068191915627083ad

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