Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ff1f4e9957873b…

MALICIOUS

PDF

39.7 KB Authoring application: Scribus
MD5: 85b34e74ad343cc76c0e0614cbf6ad72 SHA-1: 658498466f24679e605a47d8a73bd9757079c9a7 SHA-256: 95ff1f4e9957873b42c824afe4411ac40a5b31665ffefada491423b659f30269
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO spam or to distribute malicious payloads. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The document body contains garbled text, suggesting it is not intended for direct user consumption but rather as a vehicle for the embedded links.

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://chongai520.com/uploads/1/3/0/5/130589308/pozuvuzonoga_radijebox_batiwuxi_vedigiwu.pdf
    • http://delgadahoy.com/uploads/1/3/0/8/130874252/1310278.pdf
    • http://rochesternybiochem.com/uploads/1/3/0/5/130539227/958de7f47e.pdf
    • http://reach-app.com/uploads/1/3/0/7/130740262/c183f54e.pdf
    • http://chitowngala.com/uploads/1/3/0/5/130539227/1c04672e1b.pdf
    • http://economicstitan.com/uploads/1/3/0/6/130604744/7cc3f737c537ff1.pdf
    • http://nacta2018conference.com/uploads/1/3/0/3/130312925/mapomit.pdf
    • http://antebellumrp2k19.com/uploads/1/3/0/4/130478975/denaliniga_naduminov_noxuxesolidor.pdf
    • http://electmusic.net/uploads/1/3/0/5/130588735/jasew.pdf
    • http://talesfromsixthgrade.com/uploads/1/3/0/3/130313376/9558993.pdf
    • http://advancedbuildingcenter.co/uploads/1/3/0/7/130739814/nawapa.pdf
    • http://food.work/uploads/1/3/0/6/130605135/1617210.pdf
    • http://curamifatiga.com/uploads/1/3/0/8/130814286/6069717.pdf
    • http://firlesgaming.club/uploads/1/3/0/5/130541661/6114a2fcff77dff.pdf
    • http://mychinesewatch.com/uploads/1/3/0/5/130539432/130539432.html#accrual+accounting+definition+quizlet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003fc6.bin
022a61ed93d90a2a28cd56406b57ec5318576946ad61ad730fcb869b1c5c64d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3FC6 8512 bytes

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