Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c97764561f6a4c4…

MALICIOUS

PDF

41.9 KB Authoring application: ImageMagick
MD5: 9129f08296261652bd3c91b7157ab6ad SHA-1: feb17cd0d4c71ad2facae0776382c552b3b49c1a SHA-256: 6c97764561f6a4c4e7a3de7ec4bf5f5b971e088245c7b346d345b0482ef40fb6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm, which is a common technique for phishing or distributing further malware. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, and the document body content is largely garbled, making it difficult to ascertain the exact lure.

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://tetrand.com/uploads/1/3/0/5/130539139/dubuziruwurezor-dasixubadu.pdf
    • http://tovevatil.s-us.ru/uploads/2020/01/27/db83a53b9d37b1.pdf
    • http://naturesintent.co/uploads/1/3/0/3/130312953/vapapaked-ziluri-budusagudoxit-gewalifelelo.pdf
    • http://designedbyinspiration.net/uploads/1/3/0/6/130621180/4582338.pdf
    • http://rusaki.bonita-casa.ru/uploads/2020/01/27/gevipojitajawum.pdf
    • http://adriantobin.com/uploads/1/3/0/4/130435650/bufewuxadafumovone.pdf
    • http://muslimyouthstl.weebly.com/uploads/1/3/0/6/130620578/wubepovapewezi.pdf
    • http://houstonaorticsymposium.org/uploads/1/3/0/3/130313024/d0599b19cea5be.pdf
    • http://nealcm.com/uploads/1/3/0/5/130551704/xotefonigebek-boxigeko-liluf-sozit.pdf
    • http://360kirk.com/uploads/1/3/0/6/130620889/5033245.pdf
    • http://inaradias.com/uploads/1/3/0/4/130488994/pixez_vixuxonukoval_nepok_lukoroz.pdf
    • http://mcvisions.com/uploads/1/3/0/4/130488699/9856336.pdf
    • http://4100expressave.com/uploads/1/3/0/4/130483866/bivalutekik.pdf
    • http://moonshinemanorweddings.com/uploads/1/3/0/4/130436244/e09e0b773.pdf
    • http://noretasdecorinc.weebly.com/uploads/1/3/0/2/130289554/8bffd7a2e.pdf
    • http://nufuzonemi.rapmo.ru/uploads/2020/01/27/7879657.pdf
    • http://tryhardkitchen.com/uploads/1/3/0/5/130589411/wijigud.pdf
    • http://kytsfixes.com/uploads/1/3/0/6/130603793/wefile.pdf
    • http://turningheadsdesign.com/uploads/1/3/0/6/130620649/8b1aee8052813e.pdf
    • http://cyclebavaria.com/uploads/1/3/0/3/130313228/130313228.html#alcohol+dependence+with+withdrawal+seizures+icd+10
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015bf.bin
f246e9cb5983919288af36d48dc76bc96d7eb05e439bc0e34cb90a84a07f64a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15BF 7852 bytes
font_01_sfnt_off00006822.bin
1b3f82cd74c5b6671cc0c0d4a6c7877b74bb57ca469b2a61ef541918e41af838		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6822 2652 bytes

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