Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbaf8b6d99dcbe54…

MALICIOUS

PDF

38.3 KB Authoring application: Adobe PDF Library 9.0
MD5: 36138cc776580da03eccc3747e02cdbd SHA-1: aec18a54eb888eec88e51257a2c0a9729cd482b5 SHA-256: fbaf8b6d99dcbe54fac23e65794085c85cf01dacf160d132df2806969d2f60e1
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the heuristic 'PDF_SEO_LINK_FARM' strongly indicate a phishing or malware distribution campaign. The presence of a visual download button further supports the lure-based attack pattern.

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://quebarato.com.pr/uploads/1/3/0/5/130588213/4159447.pdf
    • http://richmondfutsal.com/uploads/1/3/0/4/130488983/ripovojivavakokaba.pdf
    • http://weedgrowguide.org/uploads/1/3/0/2/130289308/bexakax.pdf
    • http://bewnanskernow.org/uploads/1/3/0/6/130604627/4cbad.pdf
    • http://waygonebook.com/uploads/1/3/0/7/130739061/1614280.pdf
    • http://mypomskies.com/uploads/1/3/0/6/130605069/vudenose.pdf
    • http://uscbl.com/uploads/1/3/0/6/130621075/ximuxefu.pdf
    • http://niagaraadvantage.ca/uploads/1/3/0/6/130605133/415195.pdf
    • http://www.sharonskoklac.com/uploads/1/3/0/5/130546606/3912900.pdf
    • http://poumonteksa.com/uploads/1/3/0/3/130323892/cc8a4692fe7.pdf
    • http://fulltimecasual.com/uploads/1/3/0/7/130739234/sudivikefebavef-mirudarab-kozikamutod.pdf
    • http://402evalerio.com/uploads/1/3/0/6/130604354/powedesitovog_komopogofuvewod_jakexozibo.pdf
    • http://store.advantageauburn.com/uploads/1/3/0/5/130540082/zalopez.pdf
    • http://ebbandflood.org/uploads/1/3/0/4/130476069/zozobede.pdf
    • http://iusedtobetechnical.com/uploads/1/3/0/3/130313208/982436.pdf
    • http://onlineventures101.com/uploads/1/3/0/2/130291485/bigoworesalepal-jikigenigij.pdf
    • http://battnetwork.com/uploads/1/3/0/6/130620325/durijipolasadiv.pdf
    • http://wwydh.net/uploads/1/3/0/2/130289365/289359.pdf
    • http://vivienne-egan.com/uploads/1/3/0/2/130291355/tanunimixele_tiwefatunag_gemukof.pdf
    • http://thecanteenon13.com/uploads/1/3/0/6/130604986/d8ffa56921d1.pdf
    • http://firlesgaming.club/uploads/1/3/0/6/130604072/sitalu-wajoluj-tomegizitev-gigudugafexefa.pdf
    • http://wukun.com/uploads/1/3/0/4/130476069/pimalaxox.pdf
    • http://mathiasscarborough.com/uploads/1/3/0/5/130540097/razevoxewujax_mirin_figenegoreguvif.pdf
    • http://nastybritches.com/uploads/1/3/0/3/130379319/janin_rewitutol_wupinu.pdf
    • http://hotelvic-phase2-ja.devsite-1.com/uploads/1/3/0/2/130270894/130270894.html#adobe+reader+download+for+windows+7+32+bit+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031b6.bin
f50dc1d3c285e5f7dd7ab9c8ea5b4b634cf6002884373a0e48f1fa6e1d53cab9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31B6 8092 bytes

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