Malicious PDF — malware analysis report

Static analysis result for SHA-256 87f25f518f0ae170…

MALICIOUS

PDF

105.4 KB Created: 2020-07-28 22:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e8683af243d23ac2bdfdd5bcde70833 SHA-1: ea06b42a7d2f9e405a766464076785c9378ffb95 SHA-256: 87f25f518f0ae1701fb012aef5884fe4debabbed543691821735fe71b2f02a7b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=meenakshi+amman+temple+images', is flagged as a malicious redirector. The presence of numerous links, many hosted on cdn.shopify.com, suggests an attempt to manipulate search engine results or redirect users to malicious content. No scripts were extracted, and the document body was heavily obfuscated.

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=meenakshi+amman+temple+images
    • http://files.wordsabouttheword.com/uploads/1/3/1/3/131398246/vipemolafafovitu.pdf
    • http://files.needybeastshaven.org/uploads/1/3/0/7/130739500/986636.pdf
    • http://files.mjm24.org/uploads/1/3/0/7/130776861/6388207.pdf
    • http://files.pilgrim-medj.com/uploads/1/3/1/8/131856234/8369a3ef.pdf
    • https://cdn.shopify.com/s/files/1/0437/6051/7269/files/joxafinibefoxesituxiwuli.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/92106353051.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32343356061.pdf
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/16264048543.pdf
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/46742243036.pdf
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/54023153147.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/29595037069.pdf
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/tavazotakekivekokonuval.pdf
    • https://cdn.shopify.com/s/files/1/0431/9602/2933/files/2576043792.pdf
    • https://cdn.shopify.com/s/files/1/0428/3170/8316/files/23814345742.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/pivuguporutisozajowetakub.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/siwutona.pdf
    • https://cdn.shopify.com/s/files/1/0431/8507/8423/files/53072767784.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/27430595105.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_off00013dd2.bin
7de3cc14da290f6720f7dba2893d377c5b680eb4ee554f6d1a2a91f182127a05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DD2 4884 bytes
font_01_sfnt_off00014e3e.bin
876c9fd365c55871d5340c5ca639248ffd1fe3149f28b24475436dbe8723585b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E3E 8128 bytes
font_02_sfnt_off00016593.bin
cfb51c8c1362fbb5335cfa6ae33dca32c9ea5dbb69be1d6be070fb33f3bf66a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16593 12040 bytes
font_03_sfnt_off00018bb2.bin
db0db0f0b663acc2a791eec0c918166aeecc44c6e5101a6658670c397f9d0fd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18BB2 2832 bytes

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