Malicious PDF — malware analysis report

Static analysis result for SHA-256 e09152d8be47db73…

MALICIOUS

PDF

51.6 KB Created: 2020-09-06 19:05:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bff7fd8552468425053cd93f89edfbc SHA-1: 25502b4f9365d6e8e8ce3f7ef98af1bfa65dfe9b SHA-256: e09152d8be47db73810301cc9b83f3940320a653c7c58895ab087585db203a96
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one heuristic specifically flagging a link to a known malicious redirector infrastructure at 'https://ttraff.me/wix?keyword=acacia+mangium+willd+pdf'. Another heuristic indicates a link farm, suggesting an attempt to artificially boost search engine rankings or distribute content. The document body, though heavily obfuscated, contains references to both the malicious URL and a benign-looking PDF URL, reinforcing the lure. No scripts were extracted, but the presence of malicious redirector links strongly suggests a phishing or malware delivery attempt.

Heuristics 3

  • 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.
  • 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=acacia+mangium+willd+pdf
    • https://static.usrfiles.com/ugd/4ca7f5_f4bbe0cb7977437687595c74029bb012.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce9be25263ae42d2b74b1bbd6293a363.pdf
    • https://static.usrfiles.com/ugd/268ab1_5126849217b34c569f8183474bd54393.pdf
    • https://static.usrfiles.com/ugd/99afdc_0dee044d8248465885480d286d0be526.pdf
    • https://static.usrfiles.com/ugd/80bfa9_190f02e0578d483484d4b9feb370c3cb.pdf
    • https://cdn.shopify.com/s/files/1/0451/4558/7877/files/budget_2020_in_marathi_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/1978/7675/files/59923033089.pdf
    • https://static.usrfiles.com/ugd/7820d0_75c4a081f5e2454e835ee8ae0aa47427.pdf
    • https://static.usrfiles.com/ugd/d6b5da_07cd8c819dc84f66a080dbe954856e44.pdf
    • https://static.usrfiles.com/ugd/cf79db_222663adf09d4ce6a28a450a986f9cf2.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008bb8.bin
98c7500196f3ed1f73ba53da378947ddcf60ea45c9c4a7f4d2749a255c9410b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB8 5280 bytes
font_01_sfnt_off00009db7.bin
c15ff92075744d12843e2deb1624959efdaea239149d9c8854af2d0c1d2f8416		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB7 10620 bytes

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