Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d31dcc0badf47ab…

MALICIOUS

PDF

41.1 KB Created: 2020-08-01 08:33:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b350d482b9f061238517e477f352696 SHA-1: f0ea8c2619d14ec849d9736fd8e156ebc09b3f83 SHA-256: 9d31dcc0badf47ab2dff35c96c0c48a766b266a7c548d2ef4fdc46ba1110b8ec
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to direct users to a malicious redirector at `https://ttraff.ru/pify?keyword=kotor+restoration+mod`. This is a common tactic to obscure the final malicious destination and potentially leverage SEO techniques to distribute the lure. The document body, though heavily corrupted, contains the target URL, reinforcing the malicious intent. 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=kotor+restoration+mod
    • http://files.ideaventionsacademy.org/uploads/1/3/0/8/130874671/jumetajuxigumot_dojotowowomi_rawizulatekob_foxuf.pdf
    • http://files.rebelliousrheaboutique.shop/uploads/1/3/1/4/131406413/2090860.pdf
    • http://files.catamountlibraries.org/uploads/1/3/0/9/130969992/3352132.pdf
    • http://files.makingpeoplewhole.org/uploads/1/3/2/3/132302759/1808753.pdf
    • https://cdn.shopify.com/s/files/1/0437/4809/8209/files/perogazojulemazugisobazo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8042/5370/files/66759403000.pdf
    • https://cdn.shopify.com/s/files/1/0440/5896/8229/files/zikut.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4399/files/donodimulexoku.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1513/files/87657753433.pdf
    • https://cdn.shopify.com/s/files/1/0434/5302/2369/files/38283379080.pdf
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/sonofebideridupikike.pdf
    • https://cdn.shopify.com/s/files/1/0431/6499/1637/files/labyrinth_of_lies_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0431/3071/6322/files/giwasudenamorozitezusujoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/0464/9884/files/29875177630.pdf
    • https://cdn.shopify.com/s/files/1/0432/5556/2402/files/98489239132.pdf
    • https://cdn.shopify.com/s/files/1/0430/6190/3517/files/63835570268.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/36603802406.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_off00006615.bin
cbf3e72ca1c4e1a511bc526ecddcb64beda3bc903397c96bd9c23778b93ce808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6615 4908 bytes
font_01_sfnt_off000076ae.bin
30a1da22830f11173423df82e983553fc3ac2de34ee935e9a13a6b2558f87238		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76AE 9740 bytes

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