Malicious PDF — malware analysis report

Static analysis result for SHA-256 efb33aa37f500775…

MALICIOUS

PDF

45.9 KB Authoring application: Scribus
MD5: 572e39792a3cea227a99b6322e226107 SHA-1: d4da998a84a58f16f0942098fc315c16567de474 SHA-256: efb33aa37f500775f44cdda91a9752cd9ac3e8c96ee9b96ad3c0234185f1ff32
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further suggests a phishing or traffic-driving intent. The document body is heavily obfuscated and contains a mix of seemingly random text and URLs, reinforcing the idea that the primary purpose is to redirect users to external content rather than convey legitimate information.

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://duponegato.weebly.com/uploads/1/3/0/5/130540795/zunomeno-nikeda-zemedu.pdf
    • http://kenugeluza.kulinar-hobbi.ru/uploads/2020/01/28/816a79d6bc4.pdf
    • http://renuxituf.cargo-floor.ru/uploads/2020/01/28/lamanavono.pdf
    • http://afrocubanforum.org/uploads/1/3/0/4/130488547/venuxufujatup_netevinij_milirex.pdf
    • https://vinupolumazex.weebly.com/uploads/1/3/0/5/130539517/8818338.pdf
    • http://steppinupyonkers.org/uploads/1/3/0/6/130604618/kafekugojotoxiwik.pdf
    • http://butode.hemisphere-gnss.ru/uploads/2020/01/28/fe5c61a1.pdf
    • http://restaurantloansequipmentapps.com/uploads/1/3/0/2/130287285/rekaxes_bepusasirixowod.pdf
    • http://msluxuryhouses.com/uploads/1/3/0/6/130621061/timiwasalufevobaw.pdf
    • http://lightenlifewellness.com/uploads/1/3/0/3/130323161/morened.pdf
    • http://das.urlmac.com/uploads/2020/01/27/funazudedele_gowoxejugojezo.pdf
    • http://gesproit.com/uploads/1/3/0/2/130273850/5798348.pdf
    • http://keriakvirginhair.com/uploads/1/3/0/2/130289227/3718888.pdf
    • http://zowijusu.internet-buhgalteriya.ru/uploads/2020/01/27/9590310.pdf
    • http://theproactiveparentingcoach.com/uploads/1/3/0/3/130313390/jisuwodalonilid.pdf
    • http://setirowixu.mansbestfriendmemorial.com/uploads/2020/01/27/nugafukinojo_jogupozu.pdf
    • http://wishfulvintage.com/uploads/1/3/0/3/130323437/6896975.pdf
    • http://mypowdercoat.com/uploads/1/3/0/3/130323630/de4cf07216a2.pdf
    • http://kidrealtor.com/uploads/1/3/0/5/130544898/7630043.pdf
    • http://lisamarnold.com/uploads/1/3/0/4/130435611/8562828.pdf
    • https://wanigunibome.weebly.com/uploads/1/3/0/5/130588799/68647632.pdf
    • http://dawux.prazskykrysarik.ru/uploads/2020/01/28/kagiwuku-velapepuzomup-reridoxoreda.pdf
    • http://allamericandogexpo.com/uploads/1/3/0/5/130588668/130588668.html#weather+report+in+aligarh+tomorrow

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001879.bin
408f3e79c0b634e0f02be2641b011ba0c3359c1fc4bfbb3a0e7628b4f68824d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x1879 8124 bytes
font_01_sfnt_off000059d2.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x59D2 2652 bytes
font_02_sfnt_off00006382.bin
efc660db6c90261ac7c6912a4f5bc1a760042287b93976352b39f2b23e82639c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6382 18716 bytes