Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d00a1bf88bd46cb…

MALICIOUS

PDF

75.6 KB Created: 2021-01-08 18:35:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 166c9c3a41c783e3f34290e3274c2b34 SHA-1: 787db59c1a242e98c9bc132d89990532f1cbcf21 SHA-256: 9d00a1bf88bd46cbe034f2a1d4676e332214da3ffd2b9e756a18ec691efdcf8f
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The primary URL 'https://traffnew.ru/aws?utm_term=3ds+games+free++for+citra' indicates a lure related to free 3DS games. ClamAV detection and ML classification confirm its malicious nature, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8267

Heuristics 5

  • 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.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://traffnew.ru/aws?utm_term=3ds+games+free++for+citra
    • https://vivuguduwidu.weebly.com/uploads/1/3/2/6/132681484/c37912.pdf
    • https://mapulanedubo.weebly.com/uploads/1/3/0/9/130969056/2319871.pdf
    • https://narofuputukate.weebly.com/uploads/1/3/4/5/134585455/lugibu-tijodoziw-vurer-jefalufasis.pdf
    • https://fowajenen.weebly.com/uploads/1/3/5/3/135329448/dixawutelewuj.pdf
    • https://raxiruzaxulam.weebly.com/uploads/1/3/0/7/130738564/4063321.pdf
    • https://rubajamepufukav.weebly.com/uploads/1/3/4/4/134432722/5620600.pdf
    • https://gisidamuxifa.weebly.com/uploads/1/3/0/7/130775495/f6c33319daee.pdf
    • https://dadajiwo.weebly.com/uploads/1/3/4/8/134881642/a77a6542e8cb.pdf
    • https://fasefipuronupa.weebly.com/uploads/1/3/4/4/134471496/xerojujovawuvi-zekofiwisujevub.pdf
    • https://ledapenilodaro.weebly.com/uploads/1/3/1/0/131070651/5499690.pdf
    • https://koxawikala.weebly.com/uploads/1/3/4/6/134643159/sugirizereka.pdf
    • https://nudopimiga.weebly.com/uploads/1/3/1/0/131070212/6217535.pdf
    • https://tudevapibor.weebly.com/uploads/1/3/4/8/134884273/2298488.pdf
    • https://zowutopukanujim.weebly.com/uploads/1/3/4/2/134235103/sirugasu-kijisexela-xuluzopukamajof-lekatogeralak.pdf
    • https://s3.amazonaws.com/piwanisaj/39934007598.pdf

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