Malicious PDF — malware analysis report

Static analysis result for SHA-256 47836354879656f1…

MALICIOUS

PDF

51.5 KB Created: 2020-10-28 22:18:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67fd4b17ed43a451d305ff2ebaa8ef3e SHA-1: 77d7ca288190a8c751f101a24e3bc6b73d8b6148 SHA-256: 47836354879656f144614200aee604dfa7510cf2cbb8358b03a45ffc0c07ebd7
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised as a movie streaming offer. The PDF also hosts a large number of external links, suggesting a link farm for SEO manipulation or traffic redirection. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.ru/123?keyword=ice+age+4+watch+online+in+hindi
    • https://cdn-cms.f-static.net/uploads/4411702/normal_5f9816a71aec7.pdf
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/zisobujudud.pdf
    • https://mijigudi.weebly.com/uploads/1/3/4/3/134352865/busafowun.pdf
    • https://zoxamadafipezo.weebly.com/uploads/1/3/1/1/131164297/de97d857.pdf
    • https://dojudiwoju.weebly.com/uploads/1/3/1/4/131406456/goredomonolitef_voruxugi.pdf
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/e9ff54.pdf
    • https://juporolo.weebly.com/uploads/1/3/1/3/131380745/6389b1889f52e.pdf
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/foxoxujiroluzi.pdf
    • https://cdn-cms.f-static.net/uploads/4383445/normal_5f8dce229426e.pdf
    • https://tuvozejuwubox.weebly.com/uploads/1/3/4/3/134323710/sogexaremaju-jitof-tisepiwoto.pdf
    • https://cdn-cms.f-static.net/uploads/4377662/normal_5f8b35b580e94.pdf
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/3046187.pdf
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vudodapazepipux_kijemomebegax_velagokotukif.pdf
    • https://ganizosu.weebly.com/uploads/1/3/4/4/134434359/a5dffc99f6462.pdf
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/5229935.pdf
    • https://murikupa.weebly.com/uploads/1/3/4/4/134481598/motatasokik-lowise-loxexurodajob.pdf
    • https://cdn-cms.f-static.net/uploads/4373509/normal_5f95e518588c6.pdf
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f8d8eeb8963e.pdf
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/mukava.pdf
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/dobujosekud-vunifezu-tajoxudenit-supot.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pazifetanegapu/anemia_perniciosa_2018.pdf
    • https://s3.amazonaws.com/bevekizadoxuj/cursive_handwriting_practice_sheets.pdf
    • https://s3.amazonaws.com/jiguwuzobozobaz/vogivewofubebeke.pdf
    • https://s3.amazonaws.com/waxapoz/33691978069.pdf
    • https://s3.amazonaws.com/mewezekilafef/structure_of_the_constitution.pdf
    • https://s3.amazonaws.com/tesasubawalozan/vocal_training_files.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074a4.bin
99bf727d159a0d9aa42eb944bfe93bf6d6ef97c5d2a10b137580a9c173187b54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A4 5044 bytes
font_01_sfnt_off000085e0.bin
2685c0d94a415e243ea30d7aac1f4ce228cd05fe5a4dc43bfb423d935822604e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85E0 10812 bytes
font_02_sfnt_off0000ab00.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB00 16204 bytes

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