Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d7dce14aa97144c…

MALICIOUS

PDF

48.3 KB Created: 2020-09-08 13:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 121037f2c6bc3190ae7b8a7e47b1df0d SHA-1: 151f91e53924cc3990d9016f514fc535a1e0ab35 SHA-256: 8d7dce14aa97144c714dce3fcbdba91561b3998dad714354b63061377e1200c6
152 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a PDF about biblical altars, likely a lure for SEO poisoning or phishing. The ML classifier strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further 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.me/wix?keyword=types+of+altars+in+the+bible+pdf
    • https://static.usrfiles.com/ugd/f6336d_eca84eb83b1d43aea99a8e3b3fabdea8.pdf
    • https://static.usrfiles.com/ugd/05e3ad_b0c7292af9ef47f687d750b75c500352.pdf
    • https://static.usrfiles.com/ugd/143c98_aa437c6647c5480fbcb6b652a0f7b603.pdf
    • https://static.usrfiles.com/ugd/1a89c8_67195b3c95254a9bb8d0400ccee80e46.pdf
    • https://cdn.shopify.com/s/files/1/0460/6558/2235/files/hatteras_nc_fishing_report.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3204/files/kefetifupatevora.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/62744255429.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_4a235fb52f2943919545bd10a3f58adf.pdf
    • https://static.usrfiles.com/ugd/3aca14_32e784f092f443488f3170b86685ec8e.pdf
    • https://static.usrfiles.com/ugd/4c76bf_d284e02a439c45018de919085085cce7.pdf
    • https://static.usrfiles.com/ugd/868f76_e9e9951187a74fa49d8a1c2304d6cb99.pdf
    • https://static.usrfiles.com/ugd/b8c837_501406c151914eebbcf8f1ea013577cf.pdf
    • https://static.usrfiles.com/ugd/575363_39b3a8f03b084b049692b33f431209a2.pdf
    • https://static.usrfiles.com/ugd/3bcfef_e68530cd0c6e4f60a8cae20c4eb17ff0.pdf
    • https://static.usrfiles.com/ugd/20d83a_a4b3cfae672a48e0b162bbedc4b6c5c3.pdf
    • https://static.usrfiles.com/ugd/d38238_f59b01d240414ba6b3c773a99d124a69.pdf
    • https://static.usrfiles.com/ugd/66f7a0_1cd74ac540ac416dbcffda9673df5dfa.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_off00007096.bin
f98bb63d2d1e5bacd762651d2babeb3e0fb674063c09c5d81a9f8a3f815fd0d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7096 5108 bytes
font_01_sfnt_off000081ea.bin
569fe6229a95e8b5b7fdc71ff34c6c9031d56579f03b8ae9d5027fc4ab630a26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81EA 11032 bytes
font_02_sfnt_off0000a638.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA638 4324 bytes

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