Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3d3e61c8f3a48c…

MALICIOUS

PDF

75.1 KB Created: 2021-03-19 19:07:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c4b487641afe26d8c67cda1e88f6c88 SHA-1: a1641540b86b19fc4ff70c25e9cee6532e928c7e SHA-256: 7d3d3e61c8f3a48c774c2597c57277cfe87bbe6defb4d38c28601c491482fbfd
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, 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 site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to deliver a malicious payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://soxebez.ru/123?utm_term=item+cheat+sheet+tft+set+2
    • http://yildirimotobursa.com/wanawisopolexowapivawio8aur.pdf
    • http://particulieres-societegenerale.best/dapegit4at6.pdf
    • http://indital.fun/23741472875wkevn.pdf
    • http://help-bluebadgecenter.com/belavirte5m.pdf
    • https://fofezuse.weebly.com/uploads/1/3/0/7/130739341/6507165.pdf
    • https://cdn-cms.f-static.net/uploads/4530171/normal_6042efb501d63.pdf
    • https://sewobefavewekog.weebly.com/uploads/1/3/4/3/134367647/7fb1cc95eafa9.pdf
    • https://static.s123-cdn-static.com/uploads/4369307/normal_5ff45abfa541c.pdf
    • https://cdn-cms.f-static.net/uploads/4387701/normal_6012e15b0d666.pdf
    • http://savadaqwe.space/95354356515fukde.pdf
    • https://static.s123-cdn-static.com/uploads/4450047/normal_5fff6d35b36e6.pdf
    • https://pukexomupuko.weebly.com/uploads/1/3/1/1/131164185/2317378.pdf
    • https://cdn-cms.f-static.net/uploads/4419827/normal_603bc0a931a5b.pdf
    • http://pubggaming.online/summer_baby_monitor_manual_290301u353.pdf
    • https://cdn-cms.f-static.net/uploads/4453900/normal_602aa6fa38611.pdf
    • https://cdn-cms.f-static.net/uploads/4476418/normal_603923908b000.pdf
    • http://esmoney.site/balancing_equations_practice_worksheet_class_10_cbsecgrss.pdf
    • http://topcreditcheck.info/40631338358ps5r5.pdf
    • http://kyukty68.xyz/basic_electrical_engineering_interview_questionsvgr81.pdf
    • http://tegor.xyz/clash_of_civilizations_foreign_affairs_summaryksayd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fumiposamisur/traces_justification_report_utility_2._2.pdf
    • https://s3.amazonaws.com/nutanigonu/wemurirutukirogatal.pdf
    • https://s3.amazonaws.com/legapatatezisa/46202427670.pdf
    • https://s3.amazonaws.com/fowonaxul/31854728749.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_off0000eaaa.bin
eebbb44b3f30a4346bcb897fca5cc6fdeca3dfde5b576b18dd10c4b07e0ce888
pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAA 5060 bytes
font_01_sfnt_off0000fbbf.bin
78c384ce096ec16984b0cd00b96c8e67401665c434e507566a3bd3efe566c078
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBBF 10164 bytes