Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce63d49f4707ad00…

MALICIOUS

PDF

46.2 KB Created: 2020-03-21 19:08:07 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0dac859eb5244ac69ef30c241f372946 SHA-1: edd3fa619e0909c08831258767876f5acef4710d SHA-256: ce63d49f4707ad00d7a8cac4a9172a8d878142843ee5c6c5eb2c67072fa70213
94 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ML classifier also strongly indicated maliciousness. The document body text, though partially garbled, includes the title 'Palabras que tengan prefijo y sufijo a la vez' which appears alongside the URLs, suggesting a deceptive or manipulative purpose for the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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 http://ereksitahanlama.com/uploads/1/3/0/5/130545249/130545249.html#palabras+que+tengan+prefijo+y+sufijo+a+la+vez
    • http://hoodarc.com/uploads/1/3/1/0/131071145/xenat.pdf
    • http://insightmedicine.net/uploads/1/3/0/6/130639785/zapaduxavo.pdf
    • http://www.perfeccionatupiel.com/uploads/1/3/0/5/130552055/367548.pdf
    • http://alcbiologycells.com/uploads/1/3/0/8/130814238/c14b15f.pdf
    • http://aitoronto.org/uploads/1/3/0/7/130775200/fetiwaji_gonowozipum_wojupumalef.pdf
    • http://ncmaf.com/uploads/1/3/0/7/130775958/1b33c93.pdf
    • http://dcchosa.com/uploads/1/3/0/3/130313368/kubebesoniwof.pdf
    • http://houseofsteezy.net/uploads/1/3/0/2/130289430/34ab8d32f3c5602.pdf
    • http://literaryanimalrescue.com/uploads/1/3/0/9/130969283/rudawejo-fapila-notoporonebe.pdf
    • http://threehappytails.com/uploads/1/3/0/4/130490808/5490506.pdf
    • http://v2cursosprofissionalizantes.com/uploads/1/3/0/2/130270945/maboke.pdf
    • http://actsimplified.com/uploads/1/3/0/8/130874426/b2457258.pdf
    • http://nysmaplepartridge.com/uploads/1/3/0/6/130605146/nanujuvituwa-zisife.pdf
    • http://www.manukatools.com/uploads/1/3/0/5/130543980/ribegofetoxa.pdf
    • http://thebirdiebox.com/uploads/1/3/0/3/130324005/wamejapon-jomaxoz-bosovuw.pdf
    • http://ttves.com/uploads/1/3/0/5/130539235/3385664.pdf
    • http://hrciedge.hrcom.com/uploads/1/3/0/2/130272435/4ac2939ea.pdf
    • http://allaboutbeautybydeniseypau.com/uploads/1/3/0/6/130604744/difevasabirotif_majuvopes_gilonewo.pdf
    • http://rockthecatspa.us/uploads/1/3/0/5/130539678/85490.pdf
    • http://ferrislcmowing.com/uploads/1/3/0/8/130813784/vufibaliviramel.pdf
    • http://www.maison-argein.info/uploads/1/3/0/8/130814245/weros-rofivax.pdf
    • http://idents.net/uploads/1/3/0/7/130740571/8499831.pdf
    • http://mail.wedoboatinsurance.com/uploads/1/3/0/4/130476611/vagaxefodawatanijo.pdf
    • http://mta-sts.mx.palmacdance.com/uploads/1/3/0/4/130490668/sizenipofolame.pdf
    • http://mta-sts.mx.palmacdance.com/uploads/1/3/0/4/130
    • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000890d.bin
cc0f482ede8f3fed9f249bab6c9771df63157a45f3792ab014d2fa74502778c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x890D 8876 bytes

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