Malicious PDF — malware analysis report

Static analysis result for SHA-256 8769f76a48a0720a…

MALICIOUS

PDF

38.0 KB Created: 2020-03-30 04:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7ef83ae55b7310a8eb443fa6bcb2fe96 SHA-1: 36bd8863c24a2ef588aba6389d79e87c10998f4e SHA-256: 8769f76a48a0720a9bcc081445277d207736aeaa7a61735787d5f4aeccf5dfe5
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains references to these external URLs, including http://74-123-77-77.mgwnet.com/uploads/1/3/0/9/130969130/130969130.html#tipos+de+enlaces+ionico+y+covalente. This suggests the primary purpose is to redirect users to potentially malicious content hosted on these external domains.

Heuristics 3

  • 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
  • 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://74-123-77-77.mgwnet.com/uploads/1/3/0/9/130969130/130969130.html#tipos+de+enlaces+ionico+y+covalente
    • http://huhongye.org/uploads/1/3/0/5/130590123/8983368.pdf
    • http://reneedumarr.com/uploads/1/3/0/5/130542996/jibomanirig-lokebadumutup-ludopilij.pdf
    • http://sampriven.com/uploads/1/3/0/5/130589409/8965f96267.pdf
    • http://townpark.info/uploads/1/3/0/2/130289623/xepuwet-wavego-pozepivitoko.pdf
    • http://teleformav.org/uploads/1/3/0/6/130621374/7869444.pdf
    • http://shine2bright.com/uploads/1/3/0/7/130775744/gabemem-buwatavo-zuxirapavesa.pdf
    • http://benheinrichscounseling.com/uploads/1/3/0/6/130620233/sikejinilivu_voten_sifamit.pdf
    • http://gointexan.com/uploads/1/3/0/7/130740000/wunulikanesaweposas.pdf
    • http://coussinavecmoi.com/uploads/1/3/1/3/131398491/taloxeweka.pdf
    • http://ellenkirtner.com/uploads/1/3/0/7/130776629/1967271.pdf
    • http://mysimplehandymanservicespittsburgh.com/uploads/1/3/0/5/130588718/5841756.pdf
    • http://caledoniancall.org/uploads/1/3/0/6/130621218/1986997.pdf
    • http://boldcounsel.net/uploads/1/3/0/9/130968931/8012708.pdf
    • http://experiencevintagehome.com/uploads/1/3/0/6/130639913/wufuviwumup.pdf
    • http://montanahorsesandmules.com/uploads/1/3/0/2/130272577/mideloxazabuvu-duzademuw-kunubuwonokafo-kuzut.pdf
    • http://lemondeunlimited.com/uploads/1/3/0/8/130813694/bupudobuvig-susafuweteda.pdf
    • http://mail.psychodrama-sociometry.com/uploads/1/3/0/7/130775196/xifukenawuwu_godojoke.pdf
    • http://legalsolutionsservices.com/uploads/1/3/0/4/130483146/51fccfbea818d.pdf
    • http://springs4houstongaragedoors.com/uploads/1/3/1/0/131070483/tibekilanilotopikusu.pdf
    • http://mail.tavernandtap.com/uploads/1/3/0/3/130379172/1269488.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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c58.bin
4621ae9be7deb889c1298b4ee7318a544c0a5b57cd8ffd3be2541a90c7e1c8ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C58 7800 bytes

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