Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e2d3dd07f1a4f0e…

MALICIOUS

PDF

38.0 KB Authoring application: Adobe PDF Library 9.0
MD5: 56d4faf76b32ec83efeb8c4fa91f6bc8 SHA-1: 6a52f3216964d295a640996dbb5767e200f281d7 SHA-256: 5e2d3dd07f1a4f0e270ada93b4ca58e916f5d1fc815ea87fd134fea09c05affe
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on various domains, indicating a link farm or SEO poisoning attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution via these external links. No scripts were extracted, but the sheer volume of outbound links is the primary indicator of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://junkbond-losses.com/uploads/1/3/0/8/130814769/88f009d5b07a8b.pdf
    • http://barnhartchiro.com/uploads/1/3/0/2/130270904/wopukujowora.pdf
    • http://mybabybubalah.com/uploads/1/3/0/7/130740175/fenidepizane.pdf
    • http://www.beautyandtheminks.com/uploads/1/3/0/2/130288320/25151501acf0543.pdf
    • http://goonmud.com/uploads/1/3/0/7/130776462/e8d78.pdf
    • http://jenningsinsulation.com/uploads/1/3/0/5/130589366/67a8a4.pdf
    • http://www.marineoneinspect.com/uploads/1/3/0/5/130590336/zovawozefefebe.pdf
    • http://comfish.com.au/uploads/1/3/0/5/130541209/xejiz.pdf
    • http://www.skintechnologies.no/uploads/1/3/0/3/130379430/gidas.pdf
    • http://truedefinitionlab.com/uploads/1/3/0/2/130272610/680643.pdf
    • http://mail.doodledogs.org/uploads/1/3/0/4/130488749/lusotatujalijer-napulawoboku.pdf
    • http://undergreens.com/uploads/1/3/0/3/130379266/runeponomiw.pdf
    • http://www.shopprettyperfect.com/uploads/1/3/0/5/130550940/6284674.pdf
    • http://ryanbinford.com/uploads/1/3/0/5/130539637/liwisamidu_lazutekeruwi_baribususozuk.pdf
    • http://leadershipcv.net/uploads/1/3/0/7/130739974/gosazisej.pdf
    • http://hostmaster.coregenicgroup.co.uk/uploads/1/3/0/6/130639201/zegonalonipuvatikaza.pdf
    • http://haroldhowell.com/uploads/1/3/0/4/130435624/5346601.pdf
    • http://hostmaster.domusverdiana.it/uploads/1/3/0/8/130874021/7ea39262.pdf
    • http://syneride.com/uploads/1/3/0/6/130621490/lawez.pdf
    • http://www.shopitors.com/uploads/1/3/0/6/130640114/2927573.pdf
    • http://lisamccurdy.com/uploads/1/3/0/3/130324170/satakup_jaguxelovejon_ziluvomex.pdf
    • http://mightyjunior.com/uploads/1/3/0/2/130288639/mifaga.pdf
    • http://www.milothaimassage.com/uploads/1/3/0/5/130589228/1058099.pdf
    • http://degalvezclothing.com/uploads/1/3/0/8/130813372/ff6b5.pdf
    • http://www.jenskidkitchen.com/uploads/1/3/0/6/130621569/dinib-vurixadufidun-xitorivoxupoj.pdf
    • http://www.paulyspalsdaycare.com/uploads/1/3/0/7/130740522/130740522.html#pathophysiology+of+cholera+mayo+clinic

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000322c.bin
920fbd0da8bfcda0df594c349200a9e6e21650388782bc7329115d4d3ac18a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x322C 7216 bytes

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