Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e95540df1b13215…

MALICIOUS

PDF

51.2 KB Authoring application: Adobe PDF Library 9.0
MD5: c476866b3f0cebd870f9231cb46adcc1 SHA-1: cee36d0e351193077de8ff25c8cbcdcd2e97a941 SHA-256: 6e95540df1b132156850aa93078ccf934863eccd573f0615f4ccfc1d13a78705
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV and ML classifiers also flagged this file as malicious, specifically identifying it as a phishing or robot-related threat. The embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://www.tendoushi.net/uploads/1/3/0/7/130776125/wudifofepolu-kuvub-fufojep-jabaxanubebafi.pdf
    • http://snipesconglomerate.com/uploads/1/3/0/5/130588267/7602609.pdf
    • http://certifiedcreolebbq.com/uploads/1/3/0/2/130289722/jasewitalilidirovixa.pdf
    • http://levipark.co.nz/uploads/1/3/0/6/130605120/sixokitobesaroga.pdf
    • http://tijaragroup.com/uploads/1/3/0/6/130604688/gematojo_zukimejuno_napetizora_rufemarapago.pdf
    • http://www.hushloungeonair.com/uploads/1/3/0/6/130621369/wegomelanowodunebo.pdf
    • http://creedompublishing.com/uploads/1/3/0/5/130546153/xadukoto_vidositugewa.pdf
    • http://sportscomplexlv.com/uploads/1/3/0/7/130739158/2285461.pdf
    • http://jessicadavis.net/uploads/1/3/0/7/130774981/8459801.pdf
    • http://northernlightspace.com/uploads/1/3/0/2/130289415/vegulalurigat-zenabavifim-zamefemixev-gomobetepip.pdf
    • http://bestforexrebates.com/uploads/1/3/0/6/130604327/rarajenan-wipunog-wovamajosuwesig-puzobalumudito.pdf
    • http://systematicsweepers.com/uploads/1/3/0/6/130639949/fiditenumedavaraxiki.pdf
    • http://sensoainternational.org/uploads/1/3/0/5/130550997/9bb444585b1.pdf
    • http://modernretailcollective.store/uploads/1/3/0/3/130379316/ca0198d94f6.pdf
    • http://musclehamsterfitness.com/uploads/1/3/0/2/130273738/kivivatagasusuro.pdf
    • http://taylorsdatingcarehome.com/uploads/1/3/0/5/130589309/lojopodukugifu.pdf
    • http://prestigeholdingllc.com/uploads/1/3/0/4/130488228/7b3e8796586b336.pdf
    • http://alltankservices.com/uploads/1/3/0/7/130739351/217d234.pdf
    • http://stegygroupinc.com/uploads/1/3/0/6/130639335/6693961.pdf
    • http://prenupcounsel.net/uploads/1/3/0/4/130435561/9221ee75.pdf
    • http://mockingbird.coffee/uploads/1/3/0/6/130620297/2704875.pdf
    • http://onkoyoga.com/uploads/1/3/0/8/130874580/130874580.html#cartesian+to+polar+coordinates+c++
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004010.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x4010 16036 bytes
font_01_sfnt_off0000544b.bin
6444857d212d59486fd2460beb5c880fa69f0bd6d5b47f81c4ff3eb2e0ed9607
pdf-font-stream PDF embedded font (sfnt) at offset 0x544B 3432 bytes
font_02_sfnt_off0000637a.bin
f3d814527bc65c4e3ae51c5e1c7d86e9224a2f154b64ddfe2f991814f7c81223
pdf-font-stream PDF embedded font (sfnt) at offset 0x637A 9396 bytes