Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10e60018bc00923…

MALICIOUS

PDF

45.0 KB Authoring application: Poppler-utils First seen: 2020-09-24
MD5: 7ace90c443f1fe39f5463461bf52a638 SHA-1: f6f8df4a58b65f5974f473b67db0ac80fc1ae5c9 SHA-256: e10e60018bc00923023b36b6723a9a78913bd4cc3d8df4ed7e41bd7cde1da883
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common technique for distributing malicious content or conducting phishing attacks. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the sheer volume of external links suggests a high likelihood of redirection to harmful sites.

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://fakamunon.tierheilbehandlung.com/uploads/2020/01/29/4cc4011.pdf In PDF document text
    • http://mosinztorg.ru/uploads/2020/01/27/d20484f6.pdfIn PDF document text
    • http://tiffanyfoster.ca/uploads/1/3/0/2/130288630/4489405.pdfIn PDF document text
    • http://nerizorid.mygreenpoint.ru/uploads/2020/01/28/9847276.pdfIn PDF document text
    • http://elizabethebrault.com/uploads/1/3/0/4/130435706/9452156.pdfIn PDF document text
    • http://gitugepem.sladenec.ru/uploads/2020/01/29/0abf9.pdfIn PDF document text
    • https://xagarefape.weebly.com/uploads/1/3/0/5/130551064/vanowiwovifale-mufakigomedekil-denopeko.pdfIn PDF document text
    • http://busuxan.seo-spytnik.ru/uploads/2020/01/28/kuxadilituvun-notipelo-norebamijol.pdfIn PDF document text
    • http://ukelila.be/uploads/1/3/0/2/130272254/8a81065ea3e.pdfIn PDF document text
    • http://cnoctem.com/uploads/1/3/0/6/130620482/1951096.pdfIn PDF document text
    • http://mypersonalgifter.com/uploads/1/3/0/6/130639691/putopofuxivij.pdfIn PDF document text
    • http://negativetopositivefilms.com/uploads/1/3/0/5/130539718/tigak-jejimineragut.pdfIn PDF document text
    • http://youarenotaloneart.com/uploads/1/3/0/6/130620609/bipuxex.pdfIn PDF document text
    • http://mrbojandals.com/uploads/1/3/0/6/130621066/3025529.pdfIn PDF document text
    • http://nwcenterautos.org/uploads/1/3/0/5/130544591/gotamebobebefefogut.pdfIn PDF document text
    • http://ninktat.com/uploads/1/3/0/4/130488694/4452145.pdfIn PDF document text
    • http://tandb.net/uploads/1/3/0/6/130620871/runisotapaze_fanetus_bakupuxumuke_wivipomatonob.pdfIn PDF document text
    • http://iweargreatness.com/uploads/1/3/0/6/130620620/130620620.html#blackberry+z10+autoloader+10.+3+3In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: mosinztorg.ru 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1698 8164 bytes
SHA-256: b6e2657a6818ad9924b94862f20d868c4de89bc957039990e3e2abdc734f61ee
font_01_sfnt_off00006979.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6979 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63