Malicious PDF — malware analysis report

Static analysis result for SHA-256 51a821917e9bd8a7…

MALICIOUS

PDF

38.5 KB Created: 2020-08-15 01:34:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59fa531c50ec8c1035b2a3c782187bc0 SHA-1: 15aeb5c80937d70f51e17d7e78ebe524a3b55908 SHA-256: 51a821917e9bd8a7fc7416d8268b6b4b62da029b69d617be912d00ab811a8e57
120 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 pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=bs.+to+app+apk'. This suggests the document's primary purpose is to drive users to malicious sites. The presence of numerous Shopify-hosted PDF files indicates a link farm strategy, likely for SEO poisoning or distributing further malicious content. 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.ru/pify?keyword=bs.+to+app+apk
    • http://xojezolok.nasreenweldencounseling.com/uploads/1/3/2/7/132741555/5640812.pdf
    • http://files.heykennarae.com/uploads/1/3/1/4/131407388/pidononivi_zumosevuxusut.pdf
    • http://files.marimbahall.com/uploads/1/3/1/3/131398477/117ec6dc2365.pdf
    • http://files.trimleystmartinprimaryschool.com/uploads/1/3/1/3/131378950/9349767.pdf
    • http://files.simplecinemareviews.com/uploads/1/3/1/3/131379894/gupilosis-mixapugaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/bavegofupofonojovadiwu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1982/8386/files/10302599163.pdf
    • https://cdn.shopify.com/s/files/1/0434/4247/1064/files/rimomulu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8043/4342/files/mirafipomupifavevej.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/pusesotobip.pdf
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/blackjack_python_code.pdf
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/bulojosovave.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/49109197216.pdf
    • https://cdn.shopify.com/s/files/1/0437/3174/6967/files/template_powerpoint_modern_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0450/6845/1992/files/email_extractor_from.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/loctite_242_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/lonedosidexiza.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_off00005af1.bin
9b172736ac6f320b8f5d97fa51c0a3582bf5806ee1c47c9bafd0f2d704cc66ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF1 4828 bytes
font_01_sfnt_off00006b7a.bin
1b1a84ec1082aa373b5e21e4f56545cf0480c6cf51fc2dfd65d5badffeef8445		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7A 9904 bytes

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