Malicious PDF — malware analysis report

Static analysis result for SHA-256 092dad6466df589f…

MALICIOUS

PDF

61.6 KB Created: 2020-08-31 04:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aed141c5a4b0fb3d0f6a1349e75ae987 SHA-1: 593e4c19ed45350a777464e54dc3d687ae7de904 SHA-256: 092dad6466df589f2aa612b48609378146598b133317c70ee550add5d5fbbae1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.ru/wix?keyword=garrison+cap+insignia+placement'. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a large number of external PDF links, suggesting a link farm or content distribution strategy. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest an attempt to redirect users to malicious content, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.ru/wix?keyword=garrison+cap+insignia+placement
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0428/0349/5071/files/posoguniganujepasim.pdf
    • https://cdn.shopify.com/s/files/1/0434/8477/4552/files/fobofuwabijotovazarinuli.pdf
    • https://cdn.shopify.com/s/files/1/0434/1373/3534/files/ejercicios_sintaxis_2_bachillerato.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/fojimenemubugale.pdf
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/sunamuretidiwosiwifoboso.pdf
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/gaxuganofuripedoje.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/tazomewitusatob.pdf
    • https://static.usrfiles.com/ugd/b8c837_467f07e023dd45f6a99745a141b6c116.pdf
    • https://static.usrfiles.com/ugd/98857b_647265dca31d4c87896a5ec94411216c.pdf
    • https://static.usrfiles.com/ugd/b8c837_453b49a91bbe4ca78793cb8de7d4e7ab.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d237b1638054691bbfc12eece92e935.pdf
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/detailed_balance_sheet_example.pdf
    • https://cdn.shopify.com/s/files/1/0435/7432/9499/files/accounts_payable_officer_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/xigara.pdf
    • https://cdn.shopify.com/s/files/1/0434/0544/3237/files/house_rental_agreement_format_in_tamil_download.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a6ac.bin
5e43a7b6c65876f7b80b6a14a9d706ef64c931aad6d5c7df056d9da66da3ad30		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6AC 5072 bytes
font_01_sfnt_off0000b7cf.bin
87dd87aeaffd7a2bd9279e9e19c58da606b2f3fc2fc631dbc42adeedc8a02aa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7CF 10424 bytes
font_02_sfnt_off0000db22.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB22 4324 bytes

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