Malicious PDF — malware analysis report

Static analysis result for SHA-256 37c3df3d6fedcd30…

MALICIOUS

PDF

38.1 KB Authoring application: SWFTools
MD5: 90275c209a88d1524778edeed45cfe6b SHA-1: 7dd5842ef451af2f0004e7a7315aefe875723402 SHA-256: 37c3df3d6fedcd30e30adff26f64ae69c44cf147ee489ae913e948ee7bbc35a8
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 files hosted on various domains. This behavior is indicative of a link farm or SEO manipulation tactic, potentially used to distribute malware or phishing content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://opvakantie.org/uploads/1/3/0/2/130272474/gizedimi.pdf
    • http://lemontreepaperie.net/uploads/1/3/0/6/130620927/1705197.pdf
    • http://samuraiprinciple.org/uploads/1/3/0/8/130813851/mivubokoxonib.pdf
    • http://michaelroberto.net/uploads/1/3/0/4/130490488/lixuvadikagax_tuzupepiti_ketufirit_valuluko.pdf
    • http://rennrenn.net/uploads/1/3/0/7/130740414/1d71c3cd7.pdf
    • http://losangeles-soul.com/uploads/1/3/0/2/130272381/398f7.pdf
    • http://0fflce365.live/uploads/1/3/0/7/130739017/5360644.pdf
    • http://dingdongwadawingwong.com/uploads/1/3/0/6/130621303/3929791.pdf
    • http://zhenrentiyanyouxi.br3h.com/uploads/1/3/0/4/130435667/borig_mifukologudag.pdf
    • http://organicolosangeles.com/uploads/1/3/0/7/130739280/dagiverux.pdf
    • http://watersportsrep.com/uploads/1/3/0/5/130588939/nukegajukavag_gogokisizufot_pimazakeji_fimasoxekalulap.pdf
    • http://nowhitmoreorless.com/uploads/1/3/0/4/130488282/3168815.pdf
    • http://zepprecisionmachines.com/uploads/1/3/0/5/130539179/9274205.pdf
    • http://aialumassage.com/uploads/1/3/0/5/130552034/ferunixe-bijiv-figavub.pdf
    • http://braintiger.info/uploads/1/3/0/5/130590244/danixi.pdf
    • http://peacesupportfund.org/uploads/1/3/0/5/130590521/c3b174.pdf
    • http://algeriaschool.com/uploads/1/3/0/5/130588195/6256499.pdf
    • http://www.actionflow.co/uploads/1/3/0/7/130740251/2722932.pdf
    • http://accidentalsocialworker.com/uploads/1/3/0/5/130545185/kuxonupa_zikajerokuxe_xowador_kodop.pdf
    • http://www.thepermacultureinn.com/uploads/1/3/0/3/130313670/130313670.html#multiple+non+enlarged+mesenteric+lymph+nodes
    • http://zhenrentiyanyouxi.br3h.com/uploads/1/3/0/4/130435667/borig_mifukol

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000362c.bin
56e9e6b2da448a448bd48135e8b3c291ed89b02a15658224e0d8f36afeadea56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x362C 7944 bytes

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