Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aa0fe21d3dd4696…

MALICIOUS

PDF

78.5 KB Authoring application: pstoedit
MD5: 86a18fe8371d8ba5338fcaccbaed29ef SHA-1: a5f15940ea2f3aa23c233906d11c280fcc768875 SHA-256: 3aa0fe21d3dd4696816404af840e5fcef98c4d25fdde1cd6d1b3447f0937eab5
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique commonly used for phishing or distributing further malware. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to domains like spookfest.net. The ClamAV detection further supports its malicious nature. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the specific lure.

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://spookfest.net/uploads/1/3/0/5/130543979/e337cc.pdf
    • http://friendsoftoussaint.org/uploads/1/3/0/5/130588467/a8a8516657b3.pdf
    • http://flowpvp.com/uploads/1/3/0/6/130620478/susibunalebirogefat.pdf
    • http://dentalsleepservice.com/uploads/1/3/0/6/130604923/xasedetefet.pdf
    • http://pooglr.net/uploads/1/3/0/3/130312957/gojojagefizuku.pdf
    • http://gameandsoft.store/uploads/1/3/0/6/130604675/e34ffc81cc.pdf
    • http://hostmaster.monighettisa.ch/uploads/1/3/0/6/130620574/c95e9ac2c05847.pdf
    • http://threadsofthewayfarer.com/uploads/1/3/0/3/130379522/pekatup.pdf
    • http://www.hopehounds.org/uploads/1/3/0/2/130272406/pizuzojudoxusuw.pdf
    • http://clearancepole.info/uploads/1/3/0/6/130605104/vabagosimofukuz-sazugonapigaw.pdf
    • http://amandlastenberg.com/uploads/1/3/0/5/130551472/sopetiru-juvuwizumebin.pdf
    • http://newtcabin.com/uploads/1/3/0/5/130551788/vazalalaropin.pdf
    • http://www.pa-trafficlaw.com/uploads/1/3/0/7/130775497/6066986.pdf
    • http://all-bright-cleaning.com/uploads/1/3/0/7/130776672/zixixudaxamigus_jexibepul_duluralaf_vagenovep.pdf
    • http://scarlettbutlercreations.com/uploads/1/3/0/8/130814308/vewobu.pdf
    • http://mobilemassagenc.com/uploads/1/3/0/5/130543353/zuxagu_gegusijase_sinelizipidoraw.pdf
    • http://pineapplecoffeeandtea.com/uploads/1/3/0/5/130539940/3383990.pdf
    • http://extentrics.com/uploads/1/3/0/5/130589310/pazumobuseloj.pdf
    • http://74-123-75-90.mgwnet.com/uploads/1/3/0/8/130813829/130813829.html#verbal+bullying+research+title

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000043f2.bin
fe6ffde3434bf2f7a67eacfa6ae6d82ff5b6a35f1c411d47ae28b6f5cdc1c09d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43F2 8996 bytes

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