Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc041ce8c7d1014…

MALICIOUS

PDF

47.6 KB Created: 2020-09-16 18:58:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a49e27b95e2912579175acaabc0f5cb0 SHA-1: d0be688059fb4997b28f10731fc6b994d1e9910b SHA-256: 9cc041ce8c7d1014cee29a7ab7ddeae40e5f77330d58d685961665705f1752d6
184 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'Scotch tl901 manual'. The presence of a link farm and the ML classifier's high confidence score further support the malicious nature of this document. The primary intent appears to be directing users to malicious websites for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=scotch+tl901+manual In PDF document text
    • http://files.merrilywerun.com/uploads/1/3/0/8/130813111/mibugupamaruluv-bakirus-zoduw-zadosamare.pdfIn PDF document text
    • http://fuletub.trinitywellnesscharleston.com/uploads/1/3/0/9/130969525/mobotumape.pdfIn PDF document text
    • http://xidam.discoverplaybuild.com/uploads/1/3/1/3/131381521/gafez.pdfIn PDF document text
    • http://files.goodhealthforgoodworks.org/uploads/1/3/0/7/130775970/d0ff07eac4a.pdfIn PDF document text
    • http://ropuwa.radoslawrogoza.com/uploads/1/3/2/7/132740214/1650044.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0e0f5863-8a77-44df-a4b2-9e58ff747e08.filesusr.com/ugd/3b6424_dbf8c3b533d64ab1b8defef36b5456e0.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7058/7029/files/church_recommendation_letter_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/21158178456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/draft_compromise_agreement_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/algebra_2_exam_review_answers.pdfIn PDF document text
    • https://97752b8a-c4fd-4c77-b139-10fa0e6641f2.filesusr.com/ugd/1e52da_f09bd9bc0d2d429cbc2e18255abd4ea3.pdf?index=trueIn PDF document text
    • https://fe80ece7-eca2-4818-bb37-e81f6dec4fd5.filesusr.com/ugd/a32c20_81f326238e0248c9ad3542569c60b7f4.pdf?index=trueIn PDF document text
    • https://fd8f06c5-d5ad-4d9e-9d59-55365033f04b.filesusr.com/ugd/6f5f23_8ac78ae042f5432ab5e843c0c4110b63.pdf?index=trueIn PDF document text
    • https://bb07f69b-ec45-43d9-9168-110807926a36.filesusr.com/ugd/e56fe2_b8c83f11eccf49368cd34d2ce7794882.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1C 5220 bytes
SHA-256: 6f8b07fd7fd5c4da9b6b2d848e96e2e2924bb634c72f6940d9691ed4be350f33
font_01_sfnt_off00006bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC2 14968 bytes
SHA-256: 8757609c8c37e61b93440821e0ba79cde116113e26a605bb803daa016fa88825
font_02_sfnt_off00009a5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5D 16132 bytes
SHA-256: 43e84046d57c5d8edad47de9228ce36feb53c5e515436c294a71041590f3a3a6