Malicious PDF — malware analysis report

Static analysis result for SHA-256 89958b2f7345999c…

MALICIOUS

PDF

52.8 KB Created: 2020-07-27 14:54:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c94b7bc86a169e4e05d769e8d527a41 SHA-1: 0c2c59027b34b5a8f9a92603304272be56f47879 SHA-256: 89958b2f7345999ce79be4fed98c9e9b83c9d6c14bfed1f985852bd853ebb69c
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'game anime chaos mod apk'. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to potentially harmful sites, likely for phishing or malware delivery.

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=game+anime+chaos+mod+apk
    • http://files.kierstenbrockman.com/uploads/1/3/0/7/130775145/dazowog.pdf
    • http://files.centralparkwichita.com/uploads/1/3/1/4/131453255/9594955.pdf
    • http://files.chattanoogafiberartsguild.com/uploads/1/3/2/6/132696030/9037792.pdf
    • https://cdn.shopify.com/s/files/1/0434/0970/3061/files/tedozivulobex.pdf
    • https://cdn.shopify.com/s/files/1/0438/0445/9170/files/8755257641.pdf
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/xudixoxejaworofunanisen.pdf
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/4013297730.pdf
    • https://cdn.shopify.com/s/files/1/0432/4350/3783/files/serifozuxamifi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/fadugure.pdf
    • https://cdn.shopify.com/s/files/1/0429/0904/0803/files/66824851089.pdf
    • https://cdn.shopify.com/s/files/1/0433/4800/0922/files/wudapapeluredav.pdf
    • https://cdn.shopify.com/s/files/1/0437/4996/5985/files/12868147211.pdf
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/27815545797.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8246/files/96485017047.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0938/files/luvaf.pdf
    • https://cdn.shopify.com/s/files/1/0436/0480/3746/files/7273248682.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/
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/40132977

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000091b7.bin
170dd29952d67050ca12f763be4084230f42fd2af66fef299ee4bca68b58b116		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91B7 4988 bytes
font_01_sfnt_off0000a279.bin
db4669caa5355143319be7699ec5530ae1b72f896cb95d6e7e40bbe56305fb7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA279 10316 bytes

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