Malicious PDF — malware analysis report

Static analysis result for SHA-256 6339244ca3a0ab3d…

MALICIOUS

PDF

36.4 KB Authoring application: Scribus
MD5: 764d3b77ce2b4cc0417fc5bfffaab600 SHA-1: 23c85139ce614f8916acd949172e680103f918b8 SHA-256: 6339244ca3a0ab3d6b03796bc75a9c8b163517f1d8efd59997cf2f65d03023e6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious payloads. ClamAV and ML classifiers also flagged this file as malicious, specifically identifying it as a phishing or traffic-generating PDF. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially harmful content.

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://crispcleaningservice.com/uploads/1/3/0/6/130605430/9683993.pdf
    • http://worldcultureguide.org/uploads/1/3/0/7/130738902/lafomurotev.pdf
    • http://beyond-yesterday.net/uploads/1/3/0/7/130739916/ropejizurut-komekigajubanon.pdf
    • http://fabdriving.com/uploads/1/3/0/6/130603744/bebari-sezun-jasipu.pdf
    • http://launchachurch.org/uploads/1/3/0/5/130551144/2960412.pdf
    • http://kellyebuchanan.com/uploads/1/3/0/6/130639284/2149167.pdf
    • http://cesun2018.org/uploads/1/3/0/6/130605120/6f9042679.pdf
    • http://recessdigital.com/uploads/1/3/0/2/130288514/f849e5010116.pdf
    • http://www.madisonandleigh.com/uploads/1/3/0/7/130739234/173470.pdf
    • http://tribemotif.com/uploads/1/3/0/2/130291373/rixirajeponid_labigagepi_kibifodolam.pdf
    • http://murphyscybercafe.net/uploads/1/3/0/2/130270792/2066724.pdf
    • http://segajanesis.com/uploads/1/3/0/5/130588956/fuzasafujoviwinax.pdf
    • http://thetwindolphin.studio/uploads/1/3/0/7/130740442/6a86dc67.pdf
    • http://www.pet-flyers.com/uploads/1/3/0/4/130483592/9531350.pdf
    • http://www.gdes.co.nz/uploads/1/3/0/6/130621197/werevibo-lozetaligezafej-ronexa.pdf
    • http://gearbench.info/uploads/1/3/0/3/130380084/jugirejudixipe_vulij_mepasovawod_fagilamiv.pdf
    • http://consultoriaconsciente.com/uploads/1/3/0/4/130476432/jijogalisujufoti.pdf
    • http://dirtyfloorboards.com/uploads/1/3/0/7/130739094/9672871.pdf
    • http://mnguidedgoosehunting.com/uploads/1/3/0/6/130620871/ranulip_mozugelojelupor.pdf
    • http://5watts.us/uploads/1/3/0/6/130620882/zarutos_nibad_fusinew.pdf
    • http://mysaphi.com/uploads/1/3/0/2/130272909/130272909.html#define+agency+problem+and+agency+cost

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003138.bin
31220a3985fa05dc1a04c042e3e09204253edd44bc374eba3bf128637da8881d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3138 6956 bytes

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