Malicious PDF — malware analysis report

Static analysis result for SHA-256 12c0fe612f89f356…

MALICIOUS

PDF

86.4 KB Created: 2020-09-09 05:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0139eb690cc51e13ad4f0e2da8bd071f SHA-1: a4e5844c4b3598310a7a431cd25d22aaba8a65b9 SHA-256: 12c0fe612f89f356b91f1e91cf075019c8ffbb2acc4bd97f1db28e1f0b8cc6c6
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a PDF redirector link to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to trick users into downloading potentially harmful content by masquerading as a legitimate download link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=betting+tips+football+apk+mod 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/1/0434/4181/5718/files/pestel_analysis_of_automobile_industry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5335/9005/files/difference_between_manual_and_automation_testing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6105/9482/files/logotetatilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/easton_arrow_spine_chart.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/38955b_903dbdc6f16d492d920a3fb936b88946.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0d002d_978f3d27b0784f838e263a69d5e79ee7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1da05d_c86ca5ae38cd4233bc0dafb788d437d0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7185/6026/files/algebra_1_textbook_answers_chapter_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2549/0332/files/59823353860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8542/2997/files/brainly_answers_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/wogeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/basic_commands_in_linux_terminal.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c3f59f_cdc6a5e6b51a4f999b579913934bfcb0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_2cb22a747ba14cd59e1762af545997dd.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://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
    • http://www.geocities.com/dnhhngIn 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

Extracted artifacts 13

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_014_off00011cf8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11CF8 19044 bytes
SHA-256: b7be5951ebf53de69f5f2b19aa4e83b504f94b9cd9d9332aa19fb6a066f46be7
font_00_sfnt_off00006545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6545 7916 bytes
SHA-256: e59037b55eb65fa6455cf1c6287e33a9d16be46809afb7af2e33fa14b570a7d3
font_01_sfnt_off000079a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A5 5588 bytes
SHA-256: ba5237cd526fe7cdb774a50d86e75640d99618175ba7dd80afc07ecae5551fd9
font_02_sfnt_off00008d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D34 5520 bytes
SHA-256: 7a048e87498c08f575c412c4ad2bb4ba158c25eb5916b17efc494bb5489e11a7
font_03_sfnt_off00009fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEC 4140 bytes
SHA-256: 119132d4d86df12b64aacef50f1aeac69cc60fdd8dbe27b6e2ceb22654f0acbc
font_04_sfnt_off0000ad09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD09 3048 bytes
SHA-256: 1b68eb0745f369bd9f805b89718582bd6ebaf917deeaaae5095027b3f32dc7b8
font_05_sfnt_off0000b910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB910 4544 bytes
SHA-256: c6e7aeb80bda8022b0399df6f8693633794be1e3de2912b949a7af661e74256f
font_06_sfnt_off0000c715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC715 2328 bytes
SHA-256: c42118b51b061dffbc196cd4866a2cf76d9f31ae9d0a8f6c06e6ad224a677b24
font_07_sfnt_off0000d1cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1CC 2604 bytes
SHA-256: d07a9fdf75b1e191e7a1ea25e2941b9f689ff98e7e435169aef8b5fb7be41b17
font_08_sfnt_off0000dca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA4 3840 bytes
SHA-256: 5b8e8035f8940535bfb5f3d78de7d5c45dbc51c905faa5d9788b8fc152e96872
font_09_sfnt_off0000eab2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB2 2108 bytes
SHA-256: 806d12f4c18e044784d20764d58024893796e88f204c306662924b3e907cbcac
font_10_sfnt_off0000f48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48C 12012 bytes
SHA-256: 1039ab7baf94d5c5f6e9c63e3779072d4b5a7b088419f839d765a3f48e8d4aba
font_12_sfnt_off00013cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CBE 2832 bytes
SHA-256: 9a3e7af0855b0971ed4e960d1afbabbea6ba84bf45843a09ca44cec8f7261173