Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8a195af18af74c5…

MALICIOUS

PDF

84.3 KB Created: 2021-03-03 21:17:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 341b74749da047e1ef88b8f32a3d4e51 SHA-1: 9f6d40f2f509bb71d895fa175210125ce181a547 SHA-256: f8a195af18af74c54b455b87f0ec6f8f1c45e8ca14285fabcb536bfaf4a91327
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains an embedded URL that directs users to a website, likely for phishing purposes. No scripts were extracted, but the presence of external URIs and the overall detection suggest an attempt to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://xajibur.ru/wix?keyword=soul+eater+eruka+x+free+fanfiction
    • http://brandframeb.com/foxosudegifituretomertp4r.pdf
    • https://wezisewego.weebly.com/uploads/1/3/5/3/135342704/jijem_mufuxega_rixusove.pdf
    • http://mikrotikwizard.com/most_beautiful_wallpapers_for_mobile_phones943my.pdf
    • https://tirilume.weebly.com/uploads/1/3/4/8/134886795/duwozovoboda-vudogerewuf-pinobagoxon.pdf
    • https://gokaxavel.weebly.com/uploads/1/3/5/3/135316782/farikode.pdf
    • http://healthytrands.com/rca_entertainment_series_tv_manualibus7.pdf
    • http://cheatyou.site/remove_hidden_characters_in_oracle59y44.pdf
    • http://fumigatoff.online/kebovupujedigelq7p0r.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://zabirozoxut.epizy.com/why_did_the_age_of_absolutism_start.pdf
    • https://s3.amazonaws.com/midipes/70259501887.pdf
    • http://joluluseliwawi.rf.gd/61853452783.pdf
    • https://s3.amazonaws.com/xulikamul/texibulebonowana.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee4f.bin
75ad775516f2494eb7915d3f24256718af3dec05b28648b24f8088c409a2a83f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4F 5368 bytes
font_01_sfnt_off0001014a.bin
f04d46c30961602711f61915387d17edc1b4b1c4413cb6b00b9186bb54ecc8a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1014A 4816 bytes
font_02_sfnt_off000111bb.bin
3b995531db7939009d93f5a651d2467ee04f65aa02b2448f91775bfd7d6e2bd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111BB 10604 bytes
font_03_sfnt_off00013595.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13595 4324 bytes

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