Malicious PDF — malware analysis report

Static analysis result for SHA-256 367e076b609d3590…

MALICIOUS

PDF

48.1 KB Created: 2020-08-14 03:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ac03198ee4fb6bce55535c282dcc3b9 SHA-1: a28953def4ca7913180db1bf97ef054870d5ce44 SHA-256: 367e076b609d3590c4d53ee7edfe91a8f6ad0ea816c9411fbb837d1ee0c46366
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded URLs, with one identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this malicious URL. The presence of a malicious redirector suggests an attempt to lure the user to a site that hosts phishing content or facilitates malware downloads. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=badmaash+company+hd+movie
    • http://bupule.crestlinepto.com/uploads/1/3/1/3/131398140/5458720.pdf
    • http://files.wilcoprevention.org/uploads/1/3/1/4/131437740/29b296.pdf
    • http://files.mindwellmarketing.com/uploads/1/3/1/3/131398542/0adeb74c9e7d.pdf
    • http://robawari.storygal.com/uploads/1/3/2/7/132740900/wipegipojub.pdf
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/glencoe_earth_science_textbook_6th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0430/7684/5728/files/gidisoronakadobimelelejob.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1384/files/bank_draft_sample.pdf
    • https://cdn.shopify.com/s/files/1/0431/2819/3184/files/kizozab.pdf
    • https://cdn.shopify.com/s/files/1/0435/8212/8283/files/fofatefuxefi.pdf
    • https://cdn.shopify.com/s/files/1/0438/6396/5861/files/95314302120.pdf
    • https://cdn.shopify.com/s/files/1/0437/7391/9393/files/ruxus.pdf
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/gulf_of_tonkin_false_flag.pdf
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/lomamakejapiromubirebe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/11302808888.pdf
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/89883630431.pdf
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/pujelodibifafamowaweje.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066de.bin
10cec20a0d237f56466259933a83a0772f04ae979227ac13e754fcbc7a5f06d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66DE 5396 bytes
font_01_sfnt_off0000792b.bin
64faa28d5cc6411019482437bb55f44e266fd5282c43f7a5a6187ad9c8c4cd7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x792B 11120 bytes
font_02_sfnt_off00009e57.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E57 16164 bytes

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