Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a1d1d98d54e184…

MALICIOUS

PDF

43.3 KB Created: 2020-09-02 03:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd8806ce02a1f21bd3f545a5095c8a79 SHA-1: a849d459f25cd9a4da0ed84d921358330bb989db SHA-256: a3a1d1d98d54e1846c6940df4cd79f68cc65feb3b655594cc25ed75822c22023
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for movie content, likely intended to trick users into clicking the malicious link. The presence of a 'download button' heuristic further supports this phishing pretext.

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.
  • 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
  • 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.club/wix?keyword=azhar+movie+hd+free
    • https://cdn.shopify.com/s/files/1/0433/2745/5387/files/jitifabir.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3866/files/zagamezupojodax.pdf
    • https://cdn.shopify.com/s/files/1/0438/7697/4747/files/ayyappa_swamy_ringtones_audio.pdf
    • https://cdn.shopify.com/s/files/1/0440/4301/0213/files/1986_nissan_d21.pdf
    • https://static.usrfiles.com/ugd/33a16d_70801eb3e6cb4baf9877269d261044f6.pdf
    • https://static.usrfiles.com/ugd/b8c837_4912825f01514350b65ddd54cb9076a2.pdf
    • https://static.usrfiles.com/ugd/8d57bd_22237c9a6a6240f089e029b4f2fa1c2d.pdf
    • https://static.usrfiles.com/ugd/97634b_f2acfbffc28944b1a9aa5ca81b522dd3.pdf
    • https://static.usrfiles.com/ugd/271e65_6679299800664a4a876e5e298a3b6836.pdf
    • https://static.usrfiles.com/ugd/b16523_150dba49a99b46b1a29f3f68a976be6b.pdf
    • https://static.usrfiles.com/ugd/7c41c1_59a8d8af51274d91933150a14e14257f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a3fad402974c48eda4ff995286b5a2a6.pdf
    • https://static.usrfiles.com/ugd/ba3095_66ee96bb232e4bf784a7af882f21dd34.pdf
    • https://static.usrfiles.com/ugd/b8c837_7c4e3d1d74f947e1ae4d67666191a89f.pdf
    • https://static.usrfiles.com/ugd/9eb187_e74d29024c6246bf9e745cbe0b88dcaf.pdf
    • https://static.usrfiles.com/ugd/345929_b3c1623ad28c469c84fe5dc551237f28.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aab.bin
8b2911e8cb09e89d94acb665f2b90885abe83872a737ae8be58321076c205c9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AAB 4640 bytes
font_01_sfnt_off00005a76.bin
d6460e42a5ad47ce34adaa7a519d5e31d82a8d6098bc1f3ff3ca8df6173d343e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A76 9960 bytes
font_02_sfnt_off00007cbe.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBE 16164 bytes
font_03_sfnt_off000091d6.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91D6 4324 bytes

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