Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee0dd7597d9ba2d…

MALICIOUS

PDF

52.1 KB Authoring application: PDFBox
MD5: b78d82f40ae39f696783698ee594f0d5 SHA-1: f304b2fa892f76ce8dacb1daba8889388c1ce46c SHA-256: 3ee0dd7597d9ba2db1273dcb9ba285a541e63394a44cd89829434ed80d1cabd3
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm containing 19 external PDF links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs suggest a distribution mechanism for further malicious content, likely phishing or malware delivery.

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://lemorabel.220602shopsss08.fun/uploads/2020/01/28/mukurujerumize.pdf
    • http://rwpdivephotography.com/uploads/1/3/0/4/130489275/b045444e467.pdf
    • http://lisalenarz.com/uploads/1/3/0/6/130604595/20ca9e5ce3.pdf
    • http://rennessans.com/uploads/2020/01/27/rovagoximitejog.pdf
    • http://westlacondos.com/uploads/1/3/0/3/130313766/c5a435.pdf
    • http://updanceacademy.com/uploads/1/3/0/5/130551086/4044c26c3f76.pdf
    • http://nep.perabet76.net/uploads/2020/01/27/zedigojepel-tabofu-nubipuka.pdf
    • http://bebet.instaprizer.pw/uploads/2020/01/28/cd59aa1d63788a.pdf
    • http://zuni.audiostart58.icu/uploads/2020/01/28/kopeziridi_tijemexu.pdf
    • http://securityprojects.be/uploads/1/3/0/6/130620971/90810b.pdf
    • http://xugi.winfilm.ru/uploads/2020/01/27/fopibudosegilodak.pdf
    • http://star-nrg.com/uploads/1/3/0/6/130621161/jozebitipudiru.pdf
    • http://tuva.nik-vol.site/uploads/2020/01/28/puravokasip.pdf
    • http://ruwusit.yusufkalayci.com/uploads/2020/01/28/raxaxipamomi.pdf
    • http://murdermarblegame.com/uploads/1/3/0/3/130379596/vubed-rijawo.pdf
    • http://sago.oprosniksell.xyz/uploads/2020/01/28/260b3b52.pdf
    • http://bokepojox.feirverk-spb.ru/uploads/2020/01/28/9c9010e1.pdf
    • http://xokaga.vitevendu.net/uploads/2020/01/28/zapimupo_xodovamifiras_xudaj_javavo.pdf
    • http://xujanebik.nebesskie.com/uploads/2020/01/28/74b3f2a133d9.pdf
    • http://oombaga.net/uploads/1/3/0/6/130605335/130605335.html#sams+teach+yourself+node.js+in+24+ho

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015b8.bin
80bcb57930df5d045e0b83469d0304f835b883d2e7ad9428d8a93f1597394948		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15B8 8340 bytes
font_01_sfnt_off000083d5.bin
448c4d4550ed59c7e8e80b6d66b986666620351883d23913e38401b861762e5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83D5 16368 bytes

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