Malicious PDF — malware analysis report

Static analysis result for SHA-256 977e3bb2f4ea1b7d…

MALICIOUS

PDF

117.1 KB Created: 2020-07-27 21:13:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2595ffa61bfe5349929f27f200354488 SHA-1: 046bcaf1e71d6e27ffd6920ffc5051242b6659c1 SHA-256: 977e3bb2f4ea1b7d327117c37efb1d1b367a6fad314a3af939a0f0bf4c27bfc1
210 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm with numerous links, many hosted on 'cdn.shopify.com', suggesting an attempt to manipulate search engine results or distribute content. The presence of a 'download button' lure and visible command execution instructions further supports a malicious intent, likely to redirect users to a malicious site for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.cc/pify?keyword=apache+jmeter++for+mac In PDF document text
    • http://files.bambooartscenter.com/uploads/1/3/1/8/131857071/pujeriwetid-napofemerumaw.pdfIn PDF document text
    • http://files.cowen.rocks/uploads/1/3/2/6/132681647/2281645.pdfIn PDF document text
    • http://files.stmva.org/uploads/1/3/0/9/130969600/sajolimo.pdfIn PDF document text
    • http://:8080/ngrinder-controller-3.4.1In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/46653302130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28664871254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/41749923023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9352/4637/files/11900963807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9981/4056/files/zemivamuzadatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/15366622940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/gelesekib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/nafururugudibazefugejedab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/5280607651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/82157455760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/kegikipukigepipipamawup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/765718045.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EB3 22048 bytes
SHA-256: 3a4830e659f94b7427e20ccc6dfc907e86ac1606f095e8149f7cf26e3a9fa4fd
font_01_sfnt_off00017e8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E8A 4744 bytes
SHA-256: ac3faa04246370bac6f826909ec6a16774415f695eb049af1e8f24ae70b70e55
font_02_sfnt_off00018ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18EA8 17896 bytes
SHA-256: 871bbad5f8015b3ba69447b6e721a82b8c9dba8ca27876fe72b817a1a6d29c7b