Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffc5f9fcda7055b7…

MALICIOUS

PDF

48.1 KB Created: 2020-09-16 17:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd2de6c006a37becc6b8493274c5d48d SHA-1: 430c23269ba6905027e4606500b678569665f722 SHA-256: ffc5f9fcda7055b788623cbacdcdadea5ba4b7304d7e9ef789503b59b61f49f0
184 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with one critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the string 'Skam germany druck' and a URL that matches the malicious redirector. This suggests the document is designed to redirect users to malicious content, likely for phishing or scam purposes.

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.link/wix?keyword=skam+germany+druck In PDF document text
    • http://womidivu.plumascorporation.org/uploads/1/3/1/6/131637312/kepesutipiziso_bisesaji.pdfIn PDF document text
    • http://files.faithfullyfitforlife.com/uploads/1/3/0/8/130813829/wamiwosetulewali.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://81e8ce39-1c4c-4994-963a-66d444c3acaa.filesusr.com/ugd/4bb894_c9c1344d50a0479e8e593c376245a4b1.pdf?index=trueIn PDF document text
    • https://5f6c9b04-a18f-4639-8fec-1461c3a4b497.filesusr.com/ugd/735189_8bffd376c7a244d996a0cb8a913f5680.pdf?index=trueIn PDF document text
    • https://bee4ac06-291f-441f-bb81-a403a65caeb5.filesusr.com/ugd/d2759c_f25156541dbd4e33bfec42cceb2c5e96.pdf?index=trueIn PDF document text
    • https://549013cf-aa52-4539-a2d8-f93a8c309b4f.filesusr.com/ugd/77941b_ffc9d46dbd5e48d88b44e7fe3db5c8ad.pdf?index=trueIn PDF document text
    • https://a6d22f70-c99c-4244-a887-6e0f6d9963f6.filesusr.com/ugd/ed2d23_7b083da3bb104504a40de58597477285.pdf?index=trueIn PDF document text
    • https://8bc435db-466c-4d73-ab37-488bf8002e25.filesusr.com/ugd/9cfd0a_9851e8eadf2c4d2aab22efac4df8c2c0.pdf?index=trueIn PDF document text
    • https://f4d72857-9808-44eb-971d-967bc272c079.filesusr.com/ugd/7a13df_8423c8ada10f40a99b863f34c8737fd5.pdf?index=trueIn PDF document text
    • https://f9361bf7-18dc-4d91-94e3-ea64b20ea5e0.filesusr.com/ugd/b16523_c6ca9e3692284099a74ca4c1ff7686c0.pdf?index=trueIn PDF document text
    • https://5466d8e0-1ace-4905-8589-eef4b317a3b7.filesusr.com/ugd/3f80ec_7552a7012dfe408fab6d28def59f8a16.pdf?index=trueIn PDF document text
    • https://8ef7b55c-c838-4e7a-834c-7dee87c45085.filesusr.com/ugd/77941b_b9bcef70b5cc479fa4d4169af3438e0e.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/9479422636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/46168938824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/51287919557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/16002399080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5833/files/commutative_banach_algebra.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A9 5320 bytes
SHA-256: 2a2b975ad8efb26597b1b86f2ac9529669cbbd56fda1bc3ef5b86fb96f6c9c19
font_01_sfnt_off000086b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B8 14240 bytes
SHA-256: 367755d9a0101ecdd5bfefa1c554855305206accb8854b74072a75675b121d7a