Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a3adaa431a0618…

MALICIOUS

PDF

43.0 KB Authoring application: Scribus
MD5: f9712702f6f50ed7088bb2826733bf55 SHA-1: d76dfb7830efcc9606444796dddd09e1a1605739 SHA-256: f6a3adaa431a0618754ced27e858b3ec1dccc9f49ef28452674db043d94bf635
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The embedded document body and extracted URLs reveal a large number of links pointing to external PDF files, strongly suggesting a phishing or malware distribution campaign. The primary intent appears to be redirecting users to potentially malicious content hosted on various domains.

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://foj.vipiski-besplatno47.icu/uploads/2020/01/28/bupipiru.pdf
    • http://xebogi.sargar.ru/uploads/2020/01/27/3313219.pdf
    • http://xijuxa.howdomakeit.com/uploads/2020/01/27/8033424.pdf
    • http://negovanar.paypal-support-limitted.com/uploads/2020/01/28/6834d4467124a4.pdf
    • https://wofudiko.weebly.com/uploads/1/3/0/4/130491063/fegijedapodiwawa.pdf
    • http://mabipu.jop-schorbach.com/uploads/2020/01/28/9449766.pdf
    • http://gamehive.pro/uploads/2020/01/28/pomonij.pdf
    • https://rafudowoxujol.weebly.com/uploads/1/3/0/2/130287318/dadagonedirux_gipavifogofone_bopasog.pdf
    • http://nefimupis.faring8.net/uploads/2020/01/28/wibab_motebuginuziw.pdf
    • https://melerixezube.weebly.com/uploads/1/3/0/4/130435596/ropaf_wumepofak.pdf
    • http://siv.ichildroom.ru/uploads/2020/01/28/lixaramik.pdf
    • http://ohotavkarelii.ru/uploads/2020/01/28/9900074.pdf
    • https://nedafikapisop.weebly.com/uploads/1/3/0/2/130291415/835540.pdf
    • http://zivejevolo.tathydro.ru/uploads/2020/01/28/5098759.pdf
    • http://xejodegike.veksvetodiodov.ru/uploads/2020/01/28/wanapovuvenis-jivuzonatadoxi.pdf
    • http://mukhitdinov.org/uploads/2020/01/28/9922432.pdf
    • https://xemejixiju.weebly.com/uploads/1/3/0/4/130490643/6f6aa46dc93.pdf
    • https://lolijuxinu.weebly.com/uploads/1/3/0/4/130489172/9134783.pdf
    • https://pexakebub.weebly.com/uploads/1/3/0/4/130483799/4815952.pdf
    • http://lenelew.trip21.ru/uploads/2020/01/28/3fdbb34a5cc75.pdf
    • https://xapizawawejux.weebly.com/uploads/1/3/0/5/130590233/130590233.html#pressure+points+for+headaches+and+nausea

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001585.bin
8570237307a024352afc4ab3234ee06f56acffb6de3fba07b950639f04c08846		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1585 7728 bytes
font_01_sfnt_off00006005.bin
5d7ebd720715cd86529581f1d40cc643f68465477bd430d4be5ff736bc95f798		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6005 16268 bytes

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