Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac207a137ffe946…

MALICIOUS

PDF

50.2 KB Created: 2020-08-10 22:23:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fc3aff4878e617e50f9e58395d265df SHA-1: 7148a0e7f383da4d4839e6c745781ba082b1136b SHA-256: dac207a137ffe94629f45e631271c658f7303b8221f2b03ce0f664c133ecbf96
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document is designed to redirect users to malicious infrastructure. Additionally, a PDF link farm heuristic fired, suggesting the document contains numerous links, many of which point to benign Shopify domains but likely serve to obscure the malicious redirector. No scripts were extracted from this sample.

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=rainwater+harvesting+system+design+pdf
    • http://files.andrebretoncycling.com/uploads/1/3/0/7/130776828/bea60282a02df.pdf
    • http://files.dakotawoodlands.org/uploads/1/3/1/3/131381376/selejovu-visarowikiw-gojugipakoxi-liresu.pdf
    • http://zakiwo.sshschoir.com/uploads/1/3/1/0/131070109/4750515.pdf
    • http://files.rabbitandcouth.com/uploads/1/3/0/7/130776058/zezavoduvux_sijawun_vasilemedes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/voxekazawodopad.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/42709117527.pdf
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/bonafide_certificate_format_for_passport.pdf
    • https://cdn.shopify.com/s/files/1/0447/3402/1788/files/miller_applied_asymptotic_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0433/6277/9295/files/zidanerobetavigolim.pdf
    • https://cdn.shopify.com/s/files/1/0439/1606/6971/files/spanish_grammar_books_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0432/9819/3566/files/33026769474.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/wulopurorenipawem.pdf
    • https://cdn.shopify.com/s/files/1/0434/1946/7943/files/fotutixevikebirirovor.pdf
    • https://cdn.shopify.com/s/files/1/0433/5190/0310/files/fazigojifamopofuruxupiwut.pdf
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/caracteristicas_de_la_arquitectura_barroca_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/59740231208.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6488/files/forced_marriage_romantic_urdu_novels_free_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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008504.bin
a4d658edae9b3f16cbdf7d99dafe3645b5bc9508835de5ba92ed6fd326deddde
pdf-font-stream PDF embedded font (sfnt) at offset 0x8504 5684 bytes
font_01_sfnt_off00009852.bin
41c7f49c9df602ee1e837d1377a591dfff60c2c983eaf4760d0d08e1bb8f6419
pdf-font-stream PDF embedded font (sfnt) at offset 0x9852 10304 bytes