Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e14af947caf12b…

MALICIOUS

PDF

56.4 KB Authoring application: PDFedit
MD5: 88170b2837b32731be34d95599fc3a76 SHA-1: 901b85847ee1f45f9d117c3d131de53d7596990f SHA-256: b0e14af947caf12ba37b66b1f15c0b068ec281f315dfe809d2d24efcdc1260a1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a significant number of embedded URLs, indicating a link farm likely used for SEO manipulation or to redirect users to phishing or malware distribution sites. The heuristic PDF_SEO_LINK_FARM firing confirms the presence of numerous external PDF links, with artsandhovercrafts.com being a dominant host. No scripts were extracted from this sample, and the document body was heavily obfuscated.

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://artsandhovercrafts.com/uploads/1/3/0/6/130639854/00ad71407b.pdf
    • http://thepetiteproseccocompany.com/uploads/1/3/0/5/130551935/mowetosafi.pdf
    • http://soundnotion.tv/uploads/1/3/0/4/130478935/8042479.pdf
    • http://purposeisbaeshop.com/uploads/1/3/0/8/130813372/radapubexikeg-nutaz.pdf
    • http://yopcrealab.org/uploads/1/3/0/4/130476917/vibunosibelikuramije.pdf
    • http://customer-day.azzure-it.com/uploads/1/3/0/4/130483400/9417330.pdf
    • http://scottyvincent.net/uploads/1/3/0/5/130550711/rarefevubivumizavozu.pdf
    • http://juliana-dunn.org/uploads/1/3/0/7/130739956/dd6ae1b7.pdf
    • http://tawnellhobbs.com/uploads/1/3/0/2/130272478/lanalakewaza.pdf
    • http://freerunbasics.com/uploads/1/3/0/4/130435777/zalegedubuw.pdf
    • http://ancestryseekers.com/uploads/1/3/0/6/130621510/vixuzugigik_kekebipolom_moxopapoxatine.pdf
    • http://pocketshows.com/uploads/1/3/0/4/130492963/ac54b70c023d.pdf
    • http://captainsids.com/uploads/1/3/0/4/130479435/2919615.pdf
    • http://drrichardarcher.com/uploads/1/3/0/7/130739582/vopaxe.pdf
    • http://adsl-63-204-18-30.benefitplans.org/uploads/1/3/0/4/130488885/130488885.html#ielts+reading+passage+1+are+you+being+bullied

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001311.bin
d641be493fa24b27cfc8794f46636f679e9a30f6df7fe05514431f70a43bb0c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1311 9152 bytes

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