Malicious PDF — malware analysis report

Static analysis result for SHA-256 6afb644c5652000a…

MALICIOUS

PDF

127.9 KB Created: 2020-07-28 08:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 600ac6f62faf9967cd037164859068e4 SHA-1: 4e634a0650b4255698349e1eb49c8fdd19da0c59 SHA-256: 6afb644c5652000ade6826f765d2a29a00b7f68962db4ea6be02660756d67743
214 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one identified as pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'Google dorks cheat sheet pdf'. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://ttraff.com/pify?keyword=google+dorks+cheat+sheet+pdf
    • http://files.nanettelelaulu.com/uploads/1/3/0/7/130740517/6699142.pdf
    • http://files.shopharperfinch.com/uploads/1/3/1/6/131636843/kejimojavu.pdf
    • http://files.voyageurshotokankarate.com/uploads/1/3/1/3/131398144/wovamesusufeled.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/7392/9378/files/45298349460.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/12439877651.pdf
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/29219207883.pdf
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/54023153147.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/wufefozeboxufitu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7310/9152/files/dekezizaxokodag.pdf
    • https://cdn.shopify.com/s/files/1/0435/9543/2099/files/65107898810.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/8300171201.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/julikopixarugozorov.pdf
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/82002926981.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4832/files/kelariduzazutegezosawuxaj.pdf
    • https://cdn.shopify.com/s/files/1/0439/1059/4728/files/nizofemivit.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a7b3.bin
283ead419295e0664fa5310dc5c9169ff208bf7b42138a4e270c31cce5330a5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A7B3 5144 bytes
font_01_sfnt_off0001b952.bin
52405d59928400da1dd7c5938936ad6d2f9ec9a62e6b3302bc0cce7e93de1aa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B952 18228 bytes

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