Malicious PDF — malware analysis report

Static analysis result for SHA-256 038d03bb6544b51f…

MALICIOUS

PDF

40.7 KB Authoring application: LibreOffice Draw
MD5: 7e23307849e1bf8ca8d899e4b474802d SHA-1: d2560d4f698a146fb2a31467fded72c3d48807ac SHA-256: 038d03bb6544b51f4c35dfa18a0f44c8df01a0f8f0fc5ccd2c5bb6af25c38ecb
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or to distribute further malicious content. The ClamAV detection and ML classifier also strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://raremark.net/uploads/1/3/0/5/130551004/megamulag-tigaridawatub-ruluvatulo-wiwesexorawo.pdf
    • http://beerimbiber.com/uploads/1/3/0/6/130639924/7943756.pdf
    • http://triosreadydentallaboratory.com/uploads/1/3/0/5/130588272/vofesuwi.pdf
    • http://carpetcleaningwinston.com/uploads/1/3/0/7/130775817/b52310f1f134.pdf
    • http://mombligation.net/uploads/1/3/0/4/130489159/7606390.pdf
    • http://classicbirds.com/uploads/1/3/0/5/130550729/jugejoxetorofazeb.pdf
    • http://byshannonmalone.com/uploads/1/3/0/6/130639517/wulibuvumazofata.pdf
    • http://www.mytyze.com/uploads/1/3/0/3/130313057/dupozox.pdf
    • http://desatascossantcugat.com/uploads/1/3/0/7/130776343/5bda748d.pdf
    • http://www.askmimsy.com/uploads/1/3/0/5/130588875/ff746a5b.pdf
    • http://wi-figuy.com/uploads/1/3/0/2/130271095/77187c87.pdf
    • http://verticalfitness100.com/uploads/1/3/0/2/130291539/9498838.pdf
    • http://www.construtoraaguias.net/uploads/1/3/0/5/130544584/1101826.pdf
    • http://www.springs4houstongaragedoors.com/uploads/1/3/0/3/130323143/kagibaxu.pdf
    • http://sophiecharlottephotography.com/uploads/1/3/0/7/130739131/d1df47a.pdf
    • http://psalm128.com/uploads/1/3/0/6/130640159/e62552163.pdf
    • http://annamyers.info/uploads/1/3/0/4/130483216/lumunotigom.pdf
    • http://mrrotdir.com/uploads/1/3/0/3/130313400/868a9.pdf
    • http://peaceofmindkindercare.com/uploads/1/3/0/3/130312980/f769d.pdf
    • http://serbaballet.com/uploads/1/3/0/2/130289585/fojejamugevafo.pdf
    • http://journeytosimplicity.org/uploads/1/3/0/4/130476348/sipadik.pdf
    • http://like2read.blog/uploads/1/3/0/7/130775503/deniv.pdf
    • http://replayacademy.net/uploads/1/3/0/7/130775962/roluvabatajufom.pdf
    • http://mrfriedliclass.com/uploads/1/3/0/2/130271063/suriwawavujusus-xejifilixa-sitor-mabodijuf.pdf
    • http://93ugs.salon225.com/uploads/1/3/0/6/130621583/130621583.html#epidural+blood+patch+recovery+time

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003c68.bin
60b0de1e96a0a7ed56be88010913c49a54eee45f60b9bdac10ceb5eb5215d865
pdf-font-stream PDF embedded font (sfnt) at offset 0x3C68 7760 bytes