Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd83bc48cb54d8ad…

MALICIOUS

PDF

45.4 KB Authoring application: Nitro PDF
MD5: 38684edd97829ab9713d9503825c82cd SHA-1: 59c8d3257e77b73133574c1697cb743ad4915eb3 SHA-256: fd83bc48cb54d8ad7dc9c2c16901c88d245b92c0b70b8a7dd263664199dfdd58
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 finding for a link farm and a ClamAV detection for phishing. The document body contains numerous URLs, many of which are hosted on suspicious domains and appear to be part of a link farm designed to redirect users to malicious content. This strongly suggests a phishing or malware distribution campaign.

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://beyondstockllc.com/uploads/1/3/0/3/130324236/xujopubov.pdf
    • http://moabarealanduse.com/uploads/1/3/0/6/130639541/sarad-fesuviri-nerimevoze-zuneberapu.pdf
    • http://fotonagosuslugi-01.icu/uploads/2020/01/29/miguzimerus_nerafusuno_kapulusuvuna.pdf
    • http://mymoneycoach.co.uk/uploads/1/3/0/4/130494743/wesobegusejuzu.pdf
    • http://sagebrushcountryllc.com/uploads/1/3/0/5/130551488/vejitedisukemupava.pdf
    • http://myssample.com/uploads/1/3/0/4/130436140/sobin-fovorukumufu.pdf
    • http://boyde-studios.com/uploads/1/3/0/6/130604036/ravafinikijijuk.pdf
    • https://zozaxoxovu.weebly.com/uploads/1/3/0/5/130588830/metuvu-velelosedexid-dagepiri-wodewegil.pdf
    • http://rachaelhudes.com/uploads/1/3/0/2/130289797/226323.pdf
    • http://oxhxo.net/uploads/1/3/0/5/130539757/c66421.pdf
    • https://nedozaviluxa.weebly.com/uploads/1/3/0/4/130476791/navubibotojesidoz.pdf
    • http://geta.fluger.icu/uploads/2020/01/27/dujelokinax.pdf
    • http://colddiamnd.com/uploads/1/3/0/4/130483679/130483679.html#adverb+clause+of+cause+and+reason

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001371.bin
682d6b095383717ba539537edd5b5baf3e9ee30c6f80ad81e145bd896bed693d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1371 8248 bytes
font_01_sfnt_off00006b44.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B44 16036 bytes

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