Malicious PDF — malware analysis report

Static analysis result for SHA-256 2432a6c270632768…

MALICIOUS

PDF

51.3 KB Created: 2020-08-27 22:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89ac1b0d7116351f0ec8c4fd3aeb0923 SHA-1: 44939a57d0b1c3f71d98277aafd8fa854829523b SHA-256: 2432a6c2706327685544e7c8efca4b71cbfafc38a8441e5ff98ada7d0026e078
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to 'bum diggy bum song download mp3 free', suggesting a lure. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=bum+diggy+bum+song+download+mp3+free', which is likely used to redirect users to further malicious content. Another embedded URL, 'http://files.superaggressivereviews.com/uploads/1/3/1/4/131408954/fc2206.pdf', was also identified.

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=bum+diggy+bum+song+download+mp3+free
    • http://files.superaggressivereviews.com/uploads/1/3/1/4/131408954/fc2206.pdf
    • https://cdn.shopify.com/s/files/1/0462/6006/0309/files/85437923693.pdf
    • https://cdn.shopify.com/s/files/1/0431/3923/5997/files/bulletin_de_paie_maroc_excel.pdf
    • https://cdn.shopify.com/s/files/1/0440/9180/1752/files/bopofepomefagiwes.pdf
    • https://cdn.shopify.com/s/files/1/0463/3634/4226/files/aarti_kunj_bihari_ki_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/rifukumotetifulemosogud.pdf
    • https://cdn.shopify.com/s/files/1/0434/6553/9741/files/8708497808.pdf
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/zibewapagabadeduxi.pdf
    • https://cdn.shopify.com/s/files/1/0437/7932/6103/files/lubetukelezigeraxukisove.pdf
    • https://cdn.shopify.com/s/files/1/0433/5022/9160/files/60465966832.pdf
    • https://cdn.shopify.com/s/files/1/0437/5209/5898/files/99025688503.pdf
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/dosowamufubafojiribe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5774/9917/files/applied_mathematics_1_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/2816/9375/files/8315361431.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000940a.bin
8d8bbd1f2a1b0162b90908c3f1eb4d125d506af7b1dc8e985a3b953edbdefd50
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x940A 23868 bytes
font_00_sfnt_off00005ce3.bin
d46be8732c35da799894a32c6d17f59fcff770a8f6b4307360383938a66ce421
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE3 5908 bytes
font_01_sfnt_off000070ff.bin
738761f719c9c4df11d764f7040678cba14eddc77fe9fa2623d2cb1f3865da61
pdf-font-stream PDF embedded font (sfnt) at offset 0x70FF 10164 bytes