Malicious PDF — malware analysis report

Static analysis result for SHA-256 18eac5b057dc8910…

MALICIOUS

PDF

36.4 KB Authoring application: Pdftk
MD5: da7c89f51094c5657f57be3c0bb5337d SHA-1: e98094b09bf192e5afd6ea1ae3eb666bc3e0465f SHA-256: 18eac5b057dc89108983834d5237eff29d006addc15a5678b92fed1660a4de7a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm or a mechanism to distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

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://artofmoses.com/uploads/1/3/0/5/130589452/6a9498f3.pdf
    • http://defragrancehouse.com/uploads/1/3/0/8/130814234/wusovufene_xurij_talipijifapisuw.pdf
    • http://ozhiking.com/uploads/1/3/0/6/130639867/forimad.pdf
    • http://dahnyogasuccess.com/uploads/1/3/0/5/130589040/xuxaxugow_kezuk_nawisuxorup_sepigipe.pdf
    • http://drivebergeron.com/uploads/1/3/0/5/130588551/5990f9687.pdf
    • http://thevivaciouslivingcompany.com/uploads/1/3/0/2/130271023/bakemorak-pubiniwekutavub-nepune-nuxugugab.pdf
    • http://nickyarthur.com.au/uploads/1/3/0/5/130538986/d315a.pdf
    • http://mpholistichealth.com/uploads/1/3/0/7/130739463/04f07a63.pdf
    • http://authorlkcollins.com/uploads/1/3/0/4/130435972/vuvipo.pdf
    • http://steambrush.store/uploads/1/3/0/7/130738921/getol.pdf
    • http://groupfirm.com/uploads/1/3/0/6/130605078/08093762395.pdf
    • http://bballguru.com/uploads/1/3/0/4/130489467/78992069c6e.pdf
    • http://laydenhomes.com/uploads/1/3/0/6/130621757/kusosopuzizoru_mufup_zeximeto_jitukabivibofu.pdf
    • http://digitalmortgageloan.co/uploads/1/3/0/2/130270956/310778.pdf
    • http://briankhorsand.com/uploads/1/3/0/4/130477952/jijalu-tebofekiponaso-wulamazawuju.pdf
    • http://getleadstoday.net/uploads/1/3/0/5/130588345/1d6c00.pdf
    • http://adsl-63-204-18-30.benefitplans.org/uploads/1/3/0/5/130541064/130541064.html#pengertian+activity+based+costing+adalah

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003433.bin
7f029258b13cd6059504dcc2fb993bc16d51034d78d63f757f0cb466f78774ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3433 7336 bytes

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