Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7cd7927c7093b2b…

MALICIOUS

PDF

39.5 KB Authoring application: Smallpdf Desktop
MD5: 94cafe7c5e880581dcfb2dfd6dfe640d SHA-1: d861e314a531adbe2ed46f4c70e4ad862198bcf9 SHA-256: a7cd7927c7093b2b2f81736c559deb0a35eee1a39488b7b15dfd630363051510
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a mass external link farm, with 31 links pointing to other PDF files hosted on various domains. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the presence of embedded URLs strongly suggest a phishing or malware distribution campaign. The document body, though heavily corrupted, contains phrases related to medical dosage and ECG rhythms, which may be a lure to disguise the malicious intent.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ponteinc.net/uploads/1/3/0/7/130740073/dabole.pdf
    • http://thehealthyurt.com/uploads/1/3/0/6/130621401/takalajemifego_tajufomezewuwer_wisilifatixime_sodumojad.pdf
    • http://evs-ems.com/uploads/1/3/0/6/130604299/8249227.pdf
    • http://irvingtonhistorical.net/uploads/1/3/0/5/130551210/3b948607655031.pdf
    • http://crushinator.com/uploads/1/3/0/6/130603941/431b88661c.pdf
    • http://caps-kawauchi.net/uploads/1/3/0/6/130620949/nowaridixiri-dutebaxebejif-daviv-gitutu.pdf
    • http://tagdogtraining.com/uploads/1/3/0/6/130621197/1808814.pdf
    • http://sdseco.com/uploads/1/3/0/2/130291724/9b5c84ea.pdf
    • http://texasbackhaul.com/uploads/1/3/0/5/130538997/konip.pdf
    • http://mybowerstudio.com/uploads/1/3/0/6/130621406/5bbdeddbfe4368f.pdf
    • http://www.nobleinspectionservices.com/uploads/1/3/0/4/130476395/762ade8b.pdf
    • http://www.crystalspiritdesigns.com/uploads/1/3/0/3/130313149/9502333.pdf
    • http://nosborne.com/uploads/1/3/0/3/130313590/d76e9b7c.pdf
    • http://lwfreferral.com/uploads/1/3/0/5/130542972/muvumu.pdf
    • http://cookacousticalconsultants.com/uploads/1/3/0/2/130271126/pidove-wesoxir-kiroxu-tuvirame.pdf
    • http://tickled-ink.co.uk/uploads/1/3/0/2/130272370/sazoxu.pdf
    • http://www.gardenservicessuffolk.co.uk/uploads/1/3/0/5/130550664/eee04b7.pdf
    • http://www.jackupwithjack.com/uploads/1/3/0/8/130815482/juwiwipig.pdf
    • http://ninja-casino.net/uploads/1/3/0/5/130539241/jozikododugafo-vudoladimejide-miseluwutugug-sujifudurufod.pdf
    • http://www.susanlarsonstudio.com/uploads/1/3/0/5/130588625/wodotariwawov.pdf
    • http://fnyr1.bpmtc.com/uploads/1/3/0/7/130776023/130776023.html#epinephrine+dosage+acls
    • http://crushinator.com/uploads/1/3/0/6/130603941/431b88661c

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003a78.bin
73ed02228de9a40e10daf2405baaa11197cb384798c1b0d3a693e20b3565e280		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3A78 8132 bytes

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