Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ceb00115dc27d3…

MALICIOUS

PDF

38.6 KB Authoring application: Mobipocket Creator
MD5: 244e3798af28636d6f436cc9c12889d1 SHA-1: 870ae464fba1ac7fdb9bab3d91416be46cc349ee SHA-256: e2ceb00115dc27d394548538f79ac69e323ab41357ebd06456f937382627d7ed
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents, indicative of a link farm or redirection scheme. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies the mass external PDF link strategy, with 'tujopad.sendfrs.com' being the dominant host for these links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://tujopad.sendfrs.com/uploads/2020/01/27/xuwiwisilafa.pdf
    • http://lusafilut.vipiski-besplatno43.icu/uploads/2020/01/27/4200229.pdf
    • http://millerschoolmaster.com/uploads/1/3/0/2/130274241/lapobepovatiwup_jenobizekab_puzasajijoribef.pdf
    • http://dalu.travelsam.ru/uploads/2020/01/28/fubim-ladut-boxefawupa.pdf
    • http://marleneinteriors.com/uploads/1/3/0/5/130590588/68ad41caf.pdf
    • https://gisuketasepo.weebly.com/uploads/1/3/0/3/130323738/0ea36d07.pdf
    • https://fekujugodobeful.weebly.com/uploads/1/3/0/6/130604919/9261346.pdf
    • http://smpcreditrepair.org/uploads/1/3/0/5/130551267/c93abfe.pdf
    • http://rollnrock.com/uploads/1/3/0/4/130435962/61cabc6ae.pdf
    • http://larug.catiacristais.com/uploads/2020/01/29/selaviliderutas-bumedupupuni-lidawanat.pdf
    • http://triinjuhanson.com/uploads/1/3/0/6/130604962/tudeburamojoju.pdf
    • http://marketingforsalessuccess.com/uploads/1/3/0/5/130550983/gubaloxesirubew_vasabivi.pdf
    • http://sweetestdreams.org/uploads/1/3/0/6/130620428/130620428.html#possessive+pronoun+exercises+online

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000151f.bin
3f93e8d6ee5850845af08cda6de8c82fc756540ac7f145351b10dd8382d23c87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x151F 7792 bytes
font_01_sfnt_off00004fbd.bin
40a403f8312ff9c93041e514e965a4d57d797ba541f1da729710ef172887bfc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FBD 16060 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.