Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8da7d34620e1fa8…

MALICIOUS

PDF

86.4 KB Created: 2020-09-09 00:20:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4aa0df54eb04af4c5d9ff5bf66165e9c SHA-1: 803ea4c543da8aeb2fc41d92ffe5a6e69f071bec SHA-256: e8da7d34620e1fa84f5463b72d512c0fbf59345976e5cd5593f77c58469bcefe
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to known malicious infrastructure. Additionally, a PDF_SEO_LINK_FARM heuristic suggests the document is part of a link farm, likely for SEO manipulation or to distribute malicious content. The embedded URL, 'https://ttraff.club/wix?keyword=sonic+all+stars+racing+transformed+free+apk', is the primary indicator of malicious intent, attempting to trick users into downloading a file under the guise of a game. The document body, though heavily obfuscated, contains this URL, reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9889

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.club/wix?keyword=sonic+all+stars+racing+transformed+free+apk In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6436/7006/files/advanced_wireless_networks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/38727726766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6678/4932/files/computational_and_algorithmic_thinking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5869/1232/files/11216962772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8558/4797/files/yowhatsapp_new_version_apk_2019.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/dcf311_0c975e607aac495284b44eaa7c13bab8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fdee49_005c22ced4f34efb8af08f09727dec0e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/50c35f_e3e81afa96354aec8545495d84338953.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/05900a_a3cf0896e15748bf9937470c8be6afa3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6405/6225/files/sample_warning_letter_to_employee_fo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8337/0397/files/zofaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7986/8320/files/12903108685.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 13

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_015_off00011be5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11BE5 19044 bytes
SHA-256: 2ab4ae7b3ccfaebe196c8b8cdfc2470837f5fbad1951901277d4ba2d8bc1d27e
font_00_sfnt_off00006ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD4 7916 bytes
SHA-256: 4fca73d47fa94a6ad668c0f4434483fdc2f54e6be5ae77a011c3735f5dfefd3b
font_01_sfnt_off00007f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F35 4632 bytes
SHA-256: de06d65b8639f4f4ca21d88138c375ca8134c9174746705bb18c7d2c91c8fcf9
font_02_sfnt_off00008f6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6B 5640 bytes
SHA-256: 9dc381cf0f3b797a57515b4a569d75de95ee837c48dfca3e0452e16244b1a87e
font_03_sfnt_off0000a291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA291 4140 bytes
SHA-256: 7073f777ec002e82a856420936458262fa3cc3b4ee0437ed56f01fa51c4379d2
font_04_sfnt_off0000afaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFAF 3048 bytes
SHA-256: 2f58f42410b60611991c12283e964e03297a95500ca09b14f4d605296bc50bc4
font_05_sfnt_off0000bbbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBBE 2328 bytes
SHA-256: 864cbe2c6973b44d2b71e19ffbffb2328dcb3759b07ceb43c11d5a372fc4956d
font_06_sfnt_off0000c676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC676 2604 bytes
SHA-256: 0e4b190990c22158f359a0de2485c61736e93a484cfb226f63bccb9bc1da1b2f
font_07_sfnt_off0000d14e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD14E 3840 bytes
SHA-256: 5b8e8035f8940535bfb5f3d78de7d5c45dbc51c905faa5d9788b8fc152e96872
font_08_sfnt_off0000df5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5C 2108 bytes
SHA-256: d117309382da938f7dffedc42f90dd4217b4d540d75629b80669d975ecbc171e
font_09_sfnt_off0000e92b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE92B 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_10_sfnt_off0000f1c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C2 13116 bytes
SHA-256: 1c7c24c357d20ef21d1e2f3bda7ae8d97a8713d85405d47780c2fe5a3c4ab338
font_12_sfnt_off00013baa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BAA 2832 bytes
SHA-256: ee8afa51e50492bdf4d25b6b01818d2021856a0eb5271b70f188e6d094f25891

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