Malicious PDF — malware analysis report

Static analysis result for SHA-256 988befa653ae2ff8…

MALICIOUS

PDF

48.8 KB Authoring application: OpenOffice Draw
MD5: 3c6791f2399731f4fb7def60d5cf5b23 SHA-1: 758b7495c829497ededbe6c0752fdb25d6c0dcb9 SHA-256: 988befa653ae2ff8e7f1d8e7b269b5f39600e5fc799351b13f5fde0fd0dc9dd8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF documents hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute phishing content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample, and the document body was heavily obfuscated.

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 https://nolobosun.weebly.com/uploads/1/3/0/5/130589131/9d7932e3.pdf
    • http://banginhardfireworks.com/uploads/1/3/0/6/130604215/a11e021fd9007.pdf
    • http://s-w-p.org/uploads/1/3/0/5/130588202/tovidigejinegexuxa.pdf
    • https://fududiwumiputer.weebly.com/uploads/1/3/0/6/130604896/4070567.pdf
    • http://newtonanchorbar.co.uk/uploads/1/3/0/6/130639175/174ff0c.pdf
    • http://mybowerstudio.com/uploads/1/3/0/4/130483320/aa0d0.pdf
    • http://simirifuwu.arenatap.com/uploads/2020/01/27/2403651.pdf
    • http://welcomehometoatmore.com/uploads/1/3/0/4/130435732/tirumovemajaxigopuw.pdf
    • http://bixidigivi.game-online.club/uploads/2020/01/27/428a3cb8fcd.pdf
    • http://gago.audiostart43.icu/uploads/2020/01/28/5205332.pdf
    • http://nhgamebutcher.com/uploads/1/3/0/6/130621592/xaguloxeruxif.pdf
    • http://1e-mail.global/uploads/1/3/0/2/130272921/5551347.pdf
    • http://kiw.urogorod.ru/uploads/2020/01/27/fonarur.pdf
    • http://sweettuth.shop/uploads/1/3/0/5/130551192/gojixel-dawamanesed-ridorevibudez-mufujape.pdf
    • http://mobe-eze.com/uploads/1/3/0/2/130270859/xesosasejeget.pdf
    • http://efmlufkintx.org/uploads/1/3/0/4/130436513/3657111.pdf
    • https://ronijuwe.weebly.com/uploads/1/3/0/4/130435578/jamafilavalujo-vufirim-vavapomawar-tirodisiza.pdf
    • http://middlerhoadclothing.com/uploads/1/3/0/3/130323767/68dd2e8.pdf
    • http://dimattiadesigns.com/uploads/1/3/0/3/130323594/jajozugita-talimuli.pdf
    • http://egwrtjetggg.xyz/uploads/2020/01/28/nuxoxovet.pdf
    • https://zubigajubam.weebly.com/uploads/1/3/0/5/130550723/1f1e09fd727.pdf
    • https://wowukoguzenewe.weebly.com/uploads/1/3/0/3/130379447/wepotumabamedol-xerojujen-vunixazo-fosesun.pdf
    • http://jes.funduk.me/uploads/2020/01/28/4162165.pdf
    • http://mkdkarate.com/uploads/1/3/0/4/130489149/sanafopotij.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/6/130620916/130620916.html#arena+of+valor+guide+app
    • https://zubigajubam.weebly.com/uploads/1/3

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000174a.bin
7f889802a6b75d80382432a04f24a5fdc0d6f16935dcb79fab2ca9f3b3c46662
pdf-font-stream PDF embedded font (sfnt) at offset 0x174A 8388 bytes
font_01_sfnt_off000077ec.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x77EC 16036 bytes