Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22769f88dff61d7…

MALICIOUS

PDF

41.9 KB Authoring application: SWFTools First seen: 2020-09-24
MD5: 13ba71d970370327278b480cbae13de2 SHA-1: 28fab1718a4ff985a58ed79e522362b7c6fd8609 SHA-256: c22769f88dff61d735f2e5791ef9d94c6ccd6cafb6a331ee866269199273ccb0
192 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains a large number of embedded URLs pointing to other PDF files, indicative of a link farm or a distribution mechanism for malicious content. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may contain instructions for executing commands, potentially leveraging tools like PowerShell to download and execute further payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://www.campwinema.org/uploads/1/3/0/3/130323469/8687628.pdf In PDF document text
    • http://myorthomd.net/uploads/1/3/0/8/130813648/f5b31b6d63ed3.pdfIn PDF document text
    • http://cmdriveways.co.uk/uploads/1/3/0/2/130271097/90b0040e20f.pdfIn PDF document text
    • http://moonlitdreamspublications.com/uploads/1/3/0/6/130604286/532431f.pdfIn macro / runtime command snippet
    • http://jaysaaddison.com/uploads/1/3/0/7/130739080/4734894.pdfIn macro / runtime command snippet
    • http://katiesopocidrake.com/uploads/1/3/0/6/130621597/gufep.pdfIn PDF document text
    • http://stayhererentals.com/uploads/1/3/0/6/130620708/jigitokazoleki.pdfIn PDF document text
    • http://lifewanker.com/uploads/1/3/0/5/130551597/4027799.pdfIn PDF document text
    • http://munding-medientraining.com/uploads/1/3/0/4/130435589/3175338.pdfIn PDF document text
    • http://gigforgood.org/uploads/1/3/0/7/130776841/2556717.pdfIn PDF document text
    • http://www.dublinartclass.com/uploads/1/3/0/6/130605421/gagelew.pdfIn PDF document text
    • http://minitechmachinery.com/uploads/1/3/0/6/130620949/tafatim-levogixutal.pdfIn PDF document text
    • http://mx.clearlake8ball.net/uploads/1/3/0/2/130289226/3389781.pdfIn PDF document text
    • http://www.andresenechaldc.com/uploads/1/3/0/7/130775150/mujazepul-tijanibifobe-sixiwibi-jenumopum.pdfIn PDF document text
    • http://storylineministries.net/uploads/1/3/0/4/130489350/23ea4953c.pdfIn PDF document text
    • http://mta-sts.mail.learningwellschool.com/uploads/1/3/0/6/130639342/pukupukile-puledatitoj-josafemova-xajawidet.pdfIn PDF document text
    • http://mmakhaolak.com/uploads/1/3/0/4/130476083/paririkumizag-kipirer.pdfIn PDF document text
    • http://wefighttowinviolations.com/uploads/1/3/0/8/130873916/mupokev.pdfIn PDF document text
    • http://www.hushloungeonair.com/uploads/1/3/0/2/130289189/130289189.html#accounting+for+management+mcq+pdf+calicut+universityIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4656 7952 bytes
SHA-256: 9c48f126aa10db6f1e771f2488613fa15ce26626ddc1592cc724ad65d3ac0a5f