Malicious PDF — malware analysis report

Static analysis result for SHA-256 d045afd31440b878…

MALICIOUS

PDF

70.4 KB Authoring application: LibreOffice
MD5: 63992a2c93655abc1c7ebc64b724cb75 SHA-1: 53be4fa7a4f8e04dcaaa7070b79009c51b6df579 SHA-256: d045afd31440b878e2fc8233f3d2f4a15b9547465150aab83cdc67d5d24eb196
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 links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This technique is commonly used to distribute malicious content or redirect users to phishing sites. The ClamAV detection further supports the malicious nature of the file. The document body contains garbled text and some URLs, but no clear narrative. The primary attack pattern involves leveraging the embedded links for malicious redirection.

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://scripttoscreenplay.com/uploads/1/3/0/7/130740537/zoxedopelugep.pdf
    • http://soaringfish.com/uploads/1/3/0/2/130287514/64e3f7d35a99.pdf
    • http://travelrtw.com/uploads/1/3/0/6/130621447/suvekura.pdf
    • http://ohioccwtraining.net/uploads/1/3/0/6/130639030/sasagavim-kopesosufeb-zedujegub-fizurekazujaxaf.pdf
    • http://foreverhereforyou.com/uploads/1/3/0/6/130604370/fcc726029.pdf
    • http://zhuangguo94.com/uploads/1/3/0/6/130620791/zenowedokabol-lipatinoxisula-kuwogaf.pdf
    • http://rideandtrain.com/uploads/1/3/0/4/130436236/e38131526c391.pdf
    • http://pittybullystaffyaddicts.com/uploads/1/3/0/5/130588960/vilujovatote.pdf
    • http://aipis-edu.org/uploads/1/3/0/5/130588511/e3d17e4e2fc3.pdf
    • http://lagitanabluntsco.com/uploads/1/3/0/6/130639746/koketumob.pdf
    • http://julfcave.net/uploads/1/3/0/3/130313010/befebix.pdf
    • http://oxnard-photography.com/uploads/1/3/0/2/130273752/df611ea22d.pdf
    • http://ovrkll.net/uploads/1/3/0/5/130542780/67c9020.pdf
    • http://notariasociati.com/uploads/1/3/0/4/130483416/36979e1df31.pdf
    • http://activlang.com/uploads/1/3/0/4/130478210/6643931.pdf
    • http://metzteaching.net/uploads/1/3/0/4/130476272/5223711.pdf
    • http://nationalethicsproject.net/uploads/1/3/0/7/130776027/xuxagasifiwi.pdf
    • http://nmr-stockholm.com/uploads/1/3/0/4/130483587/xujigixag_rarik_vemuv.pdf
    • http://web5.pleasingfood.com/uploads/1/3/0/5/130545885/130545885.html#acrylamide+is+a+neurotoxin

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015da.bin
3a1cf099ecd078ad2859a31980b9e6a42d34a10a54c3ca573463d1eca6217965		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15DA 9572 bytes
font_01_sfnt_off0000ce7e.bin
c770011c50217488db5959bba4e61ed648812afdb95fa3a605d8c0da010ab783		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7E 16116 bytes

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