Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4b6ec3718baff18…

MALICIOUS

PDF

57.5 KB Authoring application: Mobipocket Creator
MD5: 09606feceacd4933005a73ef83945019 SHA-1: aa7f7831fb9e14f6882df7173f93a7b33a311086 SHA-256: e4b6ec3718baff1869fd4e2d8278af27af1ec776c82a327d059499ac61d10805
128 Risk Score

Malware Insights

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

The PDF contains a link farm with 31 external PDF links, indicating a phishing or malware distribution attempt. ClamAV also detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded document body text is heavily corrupted and does not provide further context on the lure. No scripts were extracted from this sample.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://typingduel.com/uploads/1/3/0/8/130813269/gunujupuxifelisi.pdf
    • http://lisa-lindsey.com/uploads/1/3/0/3/130323465/5908373.pdf
    • http://mycloudtoken.net/uploads/1/3/0/7/130776865/tonakekidetu.pdf
    • http://justlodesigns.com/uploads/1/3/0/2/130271081/ginodaxu.pdf
    • http://talesfromcatmountain.com/uploads/1/3/0/8/130873861/25135c.pdf
    • http://www.skinnatiouslbb.com/uploads/1/3/0/6/130605393/5524420.pdf
    • http://fakeangels.space/uploads/1/3/0/4/130435697/lifasumedopuju.pdf
    • http://minimalnaprawda.net/uploads/1/3/0/7/130739324/4162078.pdf
    • http://poetrybattlescommunity.com/uploads/1/3/0/2/130272250/6294453.pdf
    • http://johnwshaffstall.com/uploads/1/3/0/4/130488163/vudofab.pdf
    • http://mishyou.com/uploads/1/3/0/7/130775011/lusoxugubenuza.pdf
    • http://thelifeunveiled.com/uploads/1/3/0/6/130605194/6967509.pdf
    • http://stevedotterservicedrain.com/uploads/1/3/0/6/130604599/gerapugowusulad-xabisurevofe-zibuxa-jevugateziz.pdf
    • http://rubylencicki.com/uploads/1/3/0/5/130545097/nexujefaretuxol.pdf
    • http://solidrocklouisville.com/uploads/1/3/0/7/130775923/venumesarawazumazub.pdf
    • http://www.lakewoodinvestments.ca/uploads/1/3/0/8/130874238/7670724.pdf
    • http://pronaffiliates.com/uploads/1/3/0/2/130273812/basiwunaparob_nozokevikaxoza.pdf
    • http://74-123-78-185.mgwnet.com/uploads/1/3/0/4/130483903/130483903.html#gujarati+samachar+epaper+mumbai

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000445d.bin
a4c6af52f62b0e1bc0e3e766fdff73d638f106463117882a1538636540be1b7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x445D 24716 bytes
font_01_sfnt_off000083d6.bin
0ff4078b57514cd1e0dfff2edbd8ded8d4bcba0e021eb45b2ed9530821071cd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83D6 8476 bytes

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