Malicious PDF — malware analysis report

Static analysis result for SHA-256 3efc931a1c889450…

MALICIOUS

PDF

111.7 KB Created: 2020-07-30 16:13:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 484d54c178d5f020e81c760ca0a24d40 SHA-1: 3049f0e2aeb2c2adb49b90a36c36631bd422e52a SHA-256: 3efc931a1c889450c1f47c94df11989a36ca378de21dc1d2e2b2ba7e476ed7f3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. This indicates a phishing or malicious content delivery attempt. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious documents. The presence of numerous external links, including a link farm to other PDFs on Shopify, further supports the malicious intent.

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=abnormalities+of+the+placenta+pdf
    • http://files.alisonsunseri.com/uploads/1/3/1/4/131454916/xivapuzuzanopiwudu.pdf
    • http://files.bearcrack808.com/uploads/1/3/1/4/131438161/roguno_puteriremitasez_nototobasu.pdf
    • http://files.eunjukang.net/uploads/1/3/1/4/131407980/b476670.pdf
    • http://files.dragonflytechrl.com/uploads/1/3/2/7/132741194/900ba4979893.pdf
    • http://files.countyparkfriends.org/uploads/1/3/0/8/130814279/zobisulit_selitiga_sojinotavom.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/11411681938.pdf
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/mazasakafirofele.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/4770308744.pdf
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/lubesigosaravejisaj.pdf
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/rifav.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/32834818464.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dosoxuwananeworatimuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/1746/9080/files/fidadozeropuwokoduketux.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdf
    • https://cdn.shopify.com/s/files/1/0437/5219/4202/files/78097555346.pdf
    • https://cdn.shopify.com/s/files/1/0432/5549/6866/files/76994496573.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_off0001748b.bin
c1a6acc55e4a22d01282a978f108a01d09e0137e1bde4fd4471ecb9010c0ec26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1748B 5312 bytes
font_01_sfnt_off00018650.bin
561c6ed7bf47748358c040c283ded7452095e69030b88822205cefeb47b1956a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18650 13096 bytes

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