Malicious PDF — malware analysis report

Static analysis result for SHA-256 84a1ded179b01fed…

MALICIOUS

PDF

72.6 KB Authoring application: SWFTools First seen: 2020-09-24
MD5: 28b25ad85f30161968e1ba67be0463bc SHA-1: dcc74ec7b591f5c27e5bfc02dbb92903a8cce2c9 SHA-256: 84a1ded179b01fed2203d808170cd1999e7bdabc63377e87333d07631143ca58
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a link farm, directing users to various domains. This behavior, combined with ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0, strongly suggests a phishing or malware distribution campaign. No scripts were extracted, but the structure indicates a deliberate attempt to redirect users to potentially malicious content hosted on external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://simplygreenhomeservices.com/uploads/1/3/0/6/130604273/faxug.pdf In PDF document text
    • http://stalktwit.com/uploads/1/3/0/7/130775619/finivaxusavigid.pdfIn macro / runtime command snippet
    • http://davinator.com/uploads/1/3/0/3/130313088/poxefovitif_rabenosifufov_radazokovamaju_kerasexevubogi.pdfIn PDF document text
    • http://highartphoto.net/uploads/1/3/0/6/130603929/6812135.pdfIn PDF document text
    • http://beauqueenboutique.com/uploads/1/3/0/6/130639377/1f6154af4.pdfIn PDF document text
    • http://wearmonster.com/uploads/1/3/0/4/130483309/14f37e.pdfIn PDF document text
    • http://pathtoyoga.com/uploads/1/3/0/7/130740363/jopuzuvuguxep-beziw-suzasulos.pdfIn PDF document text
    • http://mta-sts.ssquarterhorses.com/uploads/1/3/0/4/130435922/jonezuvamovu_fawiwosataxeg.pdfIn PDF document text
    • http://beconfidentstudio.com/uploads/1/3/0/5/130550903/6878253.pdfIn PDF document text
    • http://shoes.boutique/uploads/1/3/0/4/130476013/rubuvakupozipobopame.pdfIn PDF document text
    • http://ndsportschannel.net/uploads/1/3/0/6/130620371/zazox.pdfIn PDF document text
    • http://mypartycastle.com/uploads/1/3/0/6/130621161/2768335.pdfIn PDF document text
    • http://74-123-73-230.mgwnet.com/uploads/1/3/0/3/130379051/3f99e631f0a4.pdfIn PDF document text
    • http://www.bluemop.org/uploads/1/3/0/5/130590678/gilarobuga_lamufopot.pdfIn PDF document text
    • http://74-123-76-212.mgwnet.com/uploads/1/3/0/5/130543386/130543386.html#australia+zoo+steve+irwin+songIn PDF document text
    • http://simplygreenhomeservices.coIn macro / runtime command snippet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3159 8620 bytes
SHA-256: 036d04082d5948a06845d10934999a6ff01367bb9169919a03edbae9a11ea3ea