Malicious PDF — malware analysis report

Static analysis result for SHA-256 45035060cf057acf…

MALICIOUS

PDF

75.1 KB Created: 2020-11-13 04:45:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: e29fc3eb6948f820d39c1064fc5ffc38 SHA-1: befbad40c04981c3a8f3593422421db410bc71e2 SHA-256: 45035060cf057acf7393863c0fc9bac7d53654af96d1a2051e3a0ec42085794c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, a common tactic for phishing or redirecting users to malicious sites. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, and one of the primary URLs, traffnew.ru, is suspicious. While no scripts were explicitly extracted, the PDF structure and link farm suggest it's designed to drive traffic to potentially harmful content, aligning with phishing or scamming attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/strik?utm_term=pocket+surgery+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388285/normal_5fa8780793467.pdfIn PDF document text
    • https://sewiwojura.weebly.com/uploads/1/3/4/3/134371681/5966918.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389107/normal_5f96e2c782db6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368952/normal_5f9614165982c.pdfIn PDF document text
    • https://nigiseza.weebly.com/uploads/1/3/4/4/134462574/ninajobavilovatat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464330/normal_5fa8563006df9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465703/normal_5fa89a6e8f9e6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xukonakefules/24457043899.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/holding_the_man_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/97607339388.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1C 4976 bytes
SHA-256: 28a1c036429732b3aa757c69693e60d560dc8efa9c3c42fd348ab6ffd3748ccc
font_01_sfnt_off0000ee25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE25 10608 bytes
SHA-256: 4fceb7cff2a0c2a3f45750961cf4e9f488eb14a04f502973d738f9811889cf20
font_02_sfnt_off000111e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111E9 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.