Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f8fbacb9a8f529a…

MALICIOUS

PDF

61.0 KB Created: 2020-09-04 22:59:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f7b03e961797892626e75f02cf8d2c7e SHA-1: dfcd1d68d32bf081654628b9f632fb1eeb30fd1b SHA-256: 1f8fbacb9a8f529a26a923f408bfe255ee4bab93385330e0ea03b14ffeab8013
152 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it contains a mass external PDF link farm, suggesting a potential SEO manipulation or phishing scheme. The embedded URL 'https://ttraff.link/pify?keyword=supernatural+season+12+episode+guide+wiki' is a primary indicator of malicious intent, likely serving as a redirector to a malicious payload or phishing page.

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.link/pify?keyword=supernatural+season+12+episode+guide+wiki
    • https://static.usrfiles.com/ugd/b8c837_81171a28561940d09ed1a8e461cc24b1.pdf
    • https://static.usrfiles.com/ugd/1df9ea_b4e807f06bde4aa9bc8065c25a75b6cc.pdf
    • https://static.usrfiles.com/ugd/1715bf_afa1ca39c21149e6bc1d6ba5cf41fa05.pdf
    • https://cdn.shopify.com/s/files/1/0430/7366/7225/files/jagamuxoxukadejukeseg.pdf
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/4323058619.pdf
    • https://static.usrfiles.com/ugd/35c6e2_22d28e7d80f940f58b055cdf72065461.pdf
    • https://static.usrfiles.com/ugd/a44510_1024faa85b654fcea552f2c136d46b5e.pdf
    • https://static.usrfiles.com/ugd/b5472a_3988128c131843c5aec1b82f0da3342a.pdf
    • https://static.usrfiles.com/ugd/b8c837_baadac04fac64f9b8afedd72cb7e4441.pdf
    • https://static.usrfiles.com/ugd/c0b427_73f29cc4324240408f789fe72fa0ba1d.pdf
    • https://static.usrfiles.com/ugd/bb13a2_47bd640941d94a6ea360002508ab734f.pdf
    • https://static.usrfiles.com/ugd/9219f8_6a02a7de4f62403d837977248fe8abd8.pdf
    • https://static.usrfiles.com/ugd/d6b5da_619efb0886bd484f8d2f6665a7cd6166.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_off00009af3.bin
580f850f992a5c9494084304a93692ca0474e6d2ff783ce289afc58d6e100168
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF3 5568 bytes
font_01_sfnt_off0000ae07.bin
1833412e7971b87e1499dee9b5594d82c9859ed41762cce497b9d1d9ee4b813e
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE07 10240 bytes
font_02_sfnt_off0000d145.bin
bff7b36378b37ff37dbf51435b761c6740d96b47e0e79897bb378602cf810c78
pdf-font-stream PDF embedded font (sfnt) at offset 0xD145 16236 bytes