Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0c1ddd8288546cf…

MALICIOUS

PDF

37.9 KB Authoring application: Soda PDF First seen: 2020-09-24
MD5: 4aaf7bfa3d4311b5a4c07214411fc3a8 SHA-1: 51bef8f0fe9098730817130079cb7fda28865c6f SHA-256: a0c1ddd8288546cfbccf11215289b10723a29f66ccf8d681e82cbb29c690a48e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file contains a large number of embedded URLs pointing to external PDF documents. The heuristic 'PDF_SEO_LINK_FARM' indicates this is a mass external PDF link farm. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further suggests a malicious intent, likely related to phishing or traffic redirection. The document body contains a mix of seemingly unrelated text and the list of URLs, reinforcing the link farm behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://vuzevawila.buyfiesta.ru/uploads/2020/01/27/8716a56ec2.pdf In PDF document text
    • https://simowadim.weebly.com/uploads/1/3/0/5/130546076/lurazeneturi.pdfIn PDF document text
    • http://97litefm.com/uploads/1/3/0/5/130546977/e77bc97375b.pdfIn PDF document text
    • https://rejuteweze.weebly.com/uploads/1/3/0/2/130289763/2596669.pdfIn PDF document text
    • https://wepenaroki.weebly.com/uploads/1/3/0/3/130379824/terugetedukag_ludex.pdfIn PDF document text
    • http://tiroxofo.apsmoney.com/uploads/2020/01/27/durut.pdfIn PDF document text
    • http://zujarawija.ecpn.su/uploads/2020/01/28/8163890.pdfIn PDF document text
    • http://conspiritofilm.com/uploads/1/3/0/5/130539034/kamibomevoroniku.pdfIn PDF document text
    • http://permmenx.xyz/uploads/2020/01/28/sikezajusodunepidi.pdfIn PDF document text
    • http://exquizicboutique19.org/uploads/1/3/0/4/130476024/jeverubanoleliva.pdfIn PDF document text
    • http://fabe.kesh-dev.com/uploads/2020/01/27/578351c93a8bea.pdfIn PDF document text
    • http://startrekhotel.com/uploads/2020/01/27/1b11c4.pdfIn PDF document text
    • http://xeve.koshkanusya.com/uploads/2020/01/28/5b4618d.pdfIn PDF document text
    • http://billiondollarduck.com/uploads/1/3/0/6/130621102/sopamikefamu.pdfIn PDF document text
    • http://reallinvestments.com/uploads/1/3/0/2/130270931/gisiwi_zikijofasagub.pdfIn PDF document text
    • http://kristenfong.info/uploads/1/3/0/6/130604405/8aa0079f5b669e0.pdfIn PDF document text
    • http://thesustainables.biz/uploads/1/3/0/4/130476720/2f2933.pdfIn PDF document text
    • http://hotsipa.com/uploads/1/3/0/5/130550992/mubowijexutapa.pdfIn PDF document text
    • http://dancinggoatsanctuary.com/uploads/1/3/0/6/130621048/130621048.html#and+then+there+were+none+study+guide+answer+keyIn PDF document text
🗂 Part of campaign: koshkanusya.com 3 samples

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1523 8200 bytes
SHA-256: d8a89c56e1dcf19497facfe0a5754c331cae3b01f900ec8917eee0911f048d94

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