Malicious PDF — malware analysis report

Static analysis result for SHA-256 5834d9495d536d02…

MALICIOUS

PDF

68.5 KB Authoring application: Serif PagePlus First seen: 2020-09-24
MD5: a3065f9ee02714bbd8567ac214bc5f94 SHA-1: 430cdbd0162d18f97684718a26bfdaac637fadcf SHA-256: 5834d9495d536d0288b851f5f080cc95411e75e313c68a21df647eda9f535aea
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection scheme. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic-driving intent. No scripts were extracted from this sample, limiting the analysis of direct malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • 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://juntamugre.org/uploads/1/3/0/5/130547486/gapidozof-xeziberebif.pdf In PDF document text
    • http://naomiquinnphotography.com/uploads/1/3/0/6/130621608/basexekeseja-lovugaxuwiju-pevonegeziralow-bitizuw.pdfIn PDF document text
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/6/130620730/1572865.pdfIn PDF document text
    • http://gabbiadelcazzo.com/uploads/1/3/0/7/130775630/xifazusovan-kadezirega-jadopemokeladom.pdfIn PDF document text
    • http://mail.home-space.co.uk/uploads/1/3/0/5/130590235/rosigadakojokupez.pdfIn PDF document text
    • http://alexpepstein.com/uploads/1/3/0/3/130379232/1c9a0a7.pdfIn PDF document text
    • http://dreamdamselart.com/uploads/1/3/0/7/130739067/4818e3dd8.pdfIn PDF document text
    • http://tutorloft.com/uploads/1/3/0/7/130776250/napuke.pdfIn PDF document text
    • http://ninetomatoesmandalas.com/uploads/1/3/0/8/130874601/faziv-vefev-vuretitakewu-gunavuve.pdfIn PDF document text
    • http://www.themanyadventuresofus.com/uploads/1/3/0/3/130323601/bemukajedituka.pdfIn PDF document text
    • http://stankarwoski.com/uploads/1/3/0/5/130551805/gesoxe_mixetazomiw.pdfIn PDF document text
    • http://stonelakecounseling.com/uploads/1/3/0/5/130539842/0d825.pdfIn PDF document text
    • http://www.mikescheydgolf.com/uploads/1/3/0/5/130589413/xigiw-vowififu-lepajara-zupobudesuxojez.pdfIn PDF document text
    • http://sidewalklegal.com/uploads/1/3/0/6/130620874/9748185.pdfIn PDF document text
    • http://dominikakonsoloslugu.net/uploads/1/3/0/4/130488732/634c25e31e4.pdfIn PDF document text
    • http://adsl-65-43-110-214.carmichaelnl.com/uploads/1/3/0/4/130489467/130489467.html#tuberculosis+intestinal+sintomas+y+signosIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000158a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158A 9768 bytes
SHA-256: cda511ba1932296c95415b1c2d18fae1631e93cfb6a1fb1d0559f9b69fe4d0e9
font_01_sfnt_off0000c744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC744 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63