Malicious PDF — malware analysis report

Static analysis result for SHA-256 db20a95c2a0a6e26…

MALICIOUS

PDF

41.5 KB Created: 2020-08-25 22:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65ba01fd35d2c349502ffcbe04893eb8 SHA-1: a451dfeef6cb73de1d66b5a191092f785293170e SHA-256: db20a95c2a0a6e268ee0eba1fee79d9737b4a778dc65ab99a52d8c3e821f733f
120 Risk Score

Malware Insights

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

The PDF document contains a link farm and a malicious redirector disguised as a download link for Adobe Reader. The primary malicious URL, https://ttraff.com/pify?keyword=adobe+reader+latest+version+download+for+pc, is designed to redirect users to potentially harmful content. The document body and heuristics indicate a social engineering attempt to trick users into clicking the malicious link.

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.com/pify?keyword=adobe+reader+latest+version+download+for+pc
    • http://pagomun.aremembers.org/uploads/1/3/1/4/131437736/wobonaku.pdf
    • http://perof.bcaprastudioarts.com/uploads/1/3/0/8/130874308/b894a87cc53.pdf
    • http://gikaxedik.russaultmotorsports.com/uploads/1/3/2/6/132683014/4069029.pdf
    • https://cdn.shopify.com/s/files/1/0440/8393/7432/files/kigilanosujetoxifizupada.pdf
    • https://cdn.shopify.com/s/files/1/0433/9721/8471/files/rikimugonazotudid.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/zonelosaxedokezikabebapew.pdf
    • https://cdn.shopify.com/s/files/1/0433/5904/3749/files/porous_asphalt_pavement.pdf
    • https://cdn.shopify.com/s/files/1/0438/1786/1280/files/cinderella_kannada_song.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5602/files/vogirudekujidezez.pdf
    • https://cdn.shopify.com/s/files/1/0452/2590/2240/files/sitabisa.pdf
    • https://cdn.shopify.com/s/files/1/0437/9305/5904/files/67549346934.pdf
    • https://cdn.shopify.com/s/files/1/0433/4996/6998/files/23746886327.pdf
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/36381015382.pdf
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/17867697580.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_off000060fb.bin
fc20b334eb1014a0f8ff80813aa3ad32d1492cedb6c3bb19504c20b5a3e50fce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FB 5428 bytes
font_01_sfnt_off0000738e.bin
06b4dbb1290c03fb2ce0b44ce900a5e92deaee152cb9de3815a20a5041cbdd5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x738E 11016 bytes

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