Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3445cf6904da88a…

MALICIOUS

PDF

216.5 KB Created: 2020-08-05 00:01:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 089381401a01165d6f12904cf3d7ba17 SHA-1: d58f567d5ad63e46def05e7c8548291bb6f16fc2 SHA-256: f3445cf6904da88a809eb1aefa3f148cff404628372cd9559914d1dfc4419e1e
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged this PDF as malicious with a high score. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to redirect the user to this harmful site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9364

Heuristics 3

  • 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.
  • 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.ru/pify?keyword=sejarah+agama+kristen+di+indonesia+pdf
    • http://files.ty-perry.com/uploads/1/3/1/1/131164081/sogezu.pdf
    • http://files.cathychamberlin.com/uploads/1/3/1/4/131453177/jotofanopitujobu.pdf
    • http://files.jaspreetsran.com/uploads/1/3/0/7/130738524/rojita.pdf
    • http://files.shopspindletap.com/uploads/1/3/0/9/130969997/sufekijuketuko.pdf
    • https://cdn.shopify.com/s/files/1/0430/7910/6724/files/16052251505.pdf
    • https://cdn.shopify.com/s/files/1/0432/1063/7475/files/liraled.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/gokus.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/66052067946.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1402/files/zozijajuvukevi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1568/3744/files/35392721548.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fasexerogetotano.pdf
    • https://cdn.shopify.com/s/files/1/0436/7951/4777/files/4311789934.pdf
    • https://cdn.shopify.com/s/files/1/0431/2737/3986/files/zivunoteju.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdf
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/61614692421.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002bc4d.bin
8c90c9391769c0eb7a01a1381ca23bb945c10cf3eef0da48b0e3370b9854d5db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC4D 5164 bytes
font_01_sfnt_off0002ce62.bin
14deed4c8779b05700035fe98b6b2ac4d15ac816b0c99933cae226b7ab4ee7b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE62 5452 bytes
font_02_sfnt_off0002e0c9.bin
b7cc6db55638a02b9e7da8e1b8d9ecabb5f8d5fb2df74c62cb235fea32c58f46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E0C9 16296 bytes
font_03_sfnt_off00031348.bin
15f1849517aad17ac489aeea1e748871c4644d1f07e588b020a3450cab98b703		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31348 19568 bytes
font_04_sfnt_off0003338c.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3338C 4324 bytes
font_05_sfnt_off0003414e.bin
2b031f2c03e56394271cd52d634a618f0a426675a8cfc5f7f2e93e2152ea45d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3414E 6476 bytes

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