Malicious PDF — malware analysis report

Static analysis result for SHA-256 56b0091bede74cdf…

MALICIOUS

PDF

39.0 KB Created: 2020-08-16 20:59:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 360613c6b5764f9b4d4f7c0609cbfdf3 SHA-1: f6f6a76550adabdb3a05528b8bf025576371bbbc SHA-256: 56b0091bede74cdf1a4e58caa811fb0b8e029bebc6c543a000f62493ebc8e4a4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically `https://ttraff.com/pify?keyword=tamilrockers+hd+movie++2019+isaimini.+com`. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many hosted on `cdn.shopify.com`. The document body, though heavily obfuscated, contains references to movie piracy sites, reinforcing the lure. The primary intent appears to be redirecting users to malicious sites, likely for phishing or further malware delivery.

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=tamilrockers+hd+movie++2019+isaimini.+com
    • http://files.mccrayart.com/uploads/1/3/2/7/132740362/9602397.pdf
    • http://files.prettycardsandmore.com/uploads/1/3/0/9/130969465/vedokekegoxed.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/somuputoje.pdf
    • https://cdn.shopify.com/s/files/1/0432/1666/6786/files/adobe_lightroom_cc_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/sukipotabo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6154/2054/files/onan_microlite_4000.pdf
    • https://cdn.shopify.com/s/files/1/0436/4002/9344/files/kevidixomojufifaxupasib.pdf
    • https://cdn.shopify.com/s/files/1/0433/9335/1843/files/bose_quietcomfort_25_android_canada.pdf
    • https://cdn.shopify.com/s/files/1/0431/8937/1029/files/tomb_of_annihilation_companion_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/5486/5320/files/61931121870.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/27678583877.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058a1.bin
c7d98047afe723d2b47c452bf4068a3f799b5364f74a88938dd1d1c73fcba645
pdf-font-stream PDF embedded font (sfnt) at offset 0x58A1 5764 bytes
font_01_sfnt_off00006c24.bin
04c4a88f84c93293fa39ae90dc140c95926d234b52e7e905caeb5b094cf0c666
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C24 10380 bytes