Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcf6e019e431d27c…

MALICIOUS

PDF

36.7 KB Created: 2020-08-23 10:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46400b9c48f81059bfac6640a320c4f7 SHA-1: 426810226923e1b318fa2f609322e1e5ba08891b SHA-256: bcf6e019e431d27c4d23c3a657e22ad17288d1d915b14cc150f7ba1acd2ebc20
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector pointing to a URL associated with downloading 'bouncemasters mod apk happymod'. The document body also contains similar text, reinforcing the lure. The presence of a link farm heuristic further indicates an attempt to distribute external content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=bouncemasters+mod+apk+happymod
    • http://nejowef.murchiebhs.com/uploads/1/3/0/7/130740178/fabitikuwoxudub-zebazam-fuseza-moperodumaraj.pdf
    • http://jazaxop.thepowissettgroup.com/uploads/1/3/1/3/131379685/gefuzokuminarukarof.pdf
    • http://files.wheresryan.org/uploads/1/3/1/6/131636689/lamemo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0559/1200/files/84417911936.pdf
    • https://cdn.shopify.com/s/files/1/0433/5114/6649/files/41574868093.pdf
    • https://cdn.shopify.com/s/files/1/0431/2976/6039/files/28277607955.pdf
    • https://cdn.shopify.com/s/files/1/0430/9296/7581/files/anime_slayer_last_version_apk.pdf
    • https://cdn.shopify.com/s/files/1/0434/5384/1560/files/kali_amman_bakthi_padalgal.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/chirodini_tumi_je_amar_song_ringtone.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/10025431734.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84302935330.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.pdf
    • https://cdn.shopify.com/s/files/1/0436/8079/2729/files/43209696757.pdf
    • https://cdn.shopify.com/s/files/1/0435/8956/6621/files/semirefepiwirubefijig.pdf
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/jesavaxazepademis.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_off00004ee8.bin
7668e9d7f160bd85e8566ec8b6ce3156e017126db9532bb6ec65e2ed36860d65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE8 5496 bytes
font_01_sfnt_off00006172.bin
2428f008e024765d2f70924cd669b7bbc5072e5f7d6898abd396e4b6aa6adaef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6172 10712 bytes

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