Malicious PDF — malware analysis report

Static analysis result for SHA-256 c600e3d805061f48…

MALICIOUS

PDF

39.4 KB Created: 2020-08-21 05:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e97cfd05d7eaf1377409f172643bbca7 SHA-1: b660e7d740327cd7029809c8e924ee25518b78d5 SHA-256: c600e3d805061f48d0a055288b3d45544019ba231c672517f5edf787e4177579
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to video songs, suggesting a phishing or scam attempt. The presence of numerous links to shopify.com, while many are confirmed benign, indicates a link farm strategy to improve search engine visibility for the malicious content.

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=geethanjali+video+songs++telugu
    • http://xiwowi.erikalfischerkeller.com/uploads/1/3/0/9/130969140/7273408.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/mulanukupigexi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/camelot_python.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1254/files/58520548031.pdf
    • https://cdn.shopify.com/s/files/1/0435/5322/6913/files/basel_3_lcr.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/nakovuwepesogaxewuti.pdf
    • https://cdn.shopify.com/s/files/1/0432/9478/5694/files/47435523569.pdf
    • https://cdn.shopify.com/s/files/1/0438/3493/3408/files/16468416021.pdf
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/the_humbling_river_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/0908/9434/files/45877873657.pdf
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/assistive_listening_devices.pdf
    • https://cdn.shopify.com/s/files/1/0437/9515/3058/files/kumirawavuwigaferuxug.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/candleberry_books.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_off00005dcd.bin
7e3f32ad96d1d555859f5dad72d84e0a7eabbcbd5d1eace234afe16787b909ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCD 5160 bytes
font_01_sfnt_off00006f64.bin
49be7e4cf1ca01f6f59aec5196fa9799ebe8fdf56baa49c61766cf0119ca7b0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F64 9832 bytes