Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffee97136828ef96…

MALICIOUS

PDF

51.9 KB Authoring application: Poppler-utils
MD5: 3f10bce1f7299f1a974c8c9b062fdbba SHA-1: c9d8e870d41a6d76241cc7d94fb76b5b29a7bfd6 SHA-256: ffee97136828ef96ce26bce297c82c5a5f2f28257ce635f37d1b3416fd9dea6d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, with the primary suspicious URL being http://vugewi.hobbyelectronika.ru/uploads/2020/01/29/90dfe3e7159.pdf. This suggests the document is designed to redirect users to potentially malicious content or to manipulate search engine results.

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://vugewi.hobbyelectronika.ru/uploads/2020/01/29/90dfe3e7159.pdf
    • https://refuzetone.weebly.com/uploads/1/3/0/5/130551526/zuwalik.pdf
    • http://pevawiz.francescoscialo.it/uploads/2020/01/27/tariz.pdf
    • http://saze.ideastoyou.ru/uploads/2020/01/28/d5ea6a.pdf
    • https://fikitafisinixor.weebly.com/uploads/1/3/0/3/130313428/wijovilutinetigeb.pdf
    • http://sog.orlovskyvf.ru/uploads/2020/01/28/gidek_botibizowu_piripa_nuvurodalenu.pdf
    • http://togilop.janderu.xyz/uploads/2020/01/28/4045199.pdf
    • http://migewer.nikitpvv74market.ru/uploads/2020/01/27/38d3db165eb0f5f.pdf
    • http://geo-leo.com/uploads/2020/01/29/paretebazo.pdf
    • http://mif.fin-payments.top/uploads/2020/01/28/gexazesonijakofopane.pdf
    • https://guduwozaxo.weebly.com/uploads/1/3/0/2/130289503/1bf5b2.pdf
    • http://najiyagalimova.com/uploads/2020/01/28/sibezadi.pdf
    • http://aakyoga.com/uploads/1/3/0/3/130323355/130323355.html#go+sms+themes+hello+kitty

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013b2.bin
d30ccb79e0c47d6c05f68c73cd3d348c05f19c5bddb03c9999c7e1c1477fbe93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B2 10060 bytes
font_01_sfnt_off00005eff.bin
c25c3647211768dd66fa296726654636a5e57e0bc486cb9a55fc15df340fad93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFF 7736 bytes
font_02_sfnt_off0000773c.bin
e54cdbbe791eeabadd7ef9737d58f286b56fc85bda8fd0264e98583cdd16322d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x773C 17140 bytes
font_03_sfnt_off00008ec5.bin
06d9f7026364774e9c50a5f31f76ae9480516368871c2bf6c60869ab5e9f4e67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC5 2992 bytes

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