Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6d63f210a58464…

MALICIOUS

PDF

35.8 KB Created: 2020-09-05 02:29:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 772f78842fb19a7e00d0dcdf20b54835 SHA-1: 2e929b32b349b7340384bc5701a804804578979f SHA-256: ed6d63f210a58464c5570fb3f89a3fcf3052bac76f779207cc678e27e288f293
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.link/wix?keyword=arjun+patiala+song+ringtone++pagalworld', points to a known malicious redirector. The document body, though heavily obfuscated, contains references to this malicious URL and other URLs hosted on 'static.usrfiles.com', which are likely part of the link farm. This suggests a social engineering attack aimed at directing users to malicious infrastructure.

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.link/wix?keyword=arjun+patiala+song+ringtone++pagalworld
    • https://static.usrfiles.com/ugd/17159d_4fa7e738c9df4201967196f0c94c6be9.pdf
    • https://static.usrfiles.com/ugd/30e015_170690c84c8647a38f49a974a2d1607a.pdf
    • https://static.usrfiles.com/ugd/a59130_77c1331965f643248c856a132be45522.pdf
    • https://static.usrfiles.com/ugd/b0cb2d_10745ac14d7b413d970d74d686d6b166.pdf
    • https://static.usrfiles.com/ugd/b8c837_ee828a68bf90455ab07570f60e5fc815.pdf
    • https://static.usrfiles.com/ugd/20d83a_ceb8577d9e1f45c8a5dec4278eee7bf5.pdf
    • https://static.usrfiles.com/ugd/6116da_51aed511565c4efba193031c1fb00304.pdf
    • https://static.usrfiles.com/ugd/a107db_69ea9e7df03d412b9d7aa546d1120e61.pdf
    • https://static.usrfiles.com/ugd/6a22cb_013ef5aa70d84fd6b810748fb52d499e.pdf
    • https://static.usrfiles.com/ugd/91e123_4c48591b62cd444e8a3557f421895b7d.pdf
    • https://static.usrfiles.com/ugd/3e9e83_e7246cd0a6d041e78172890fc6849dfa.pdf
    • https://static.usrfiles.com/ugd/866690_07e7ed24a4614233b0763635d9bd7553.pdf
    • https://static.usrfiles.com/ugd/fbccce_8641aecab7d14a4385ae58e91ba64e23.pdf
    • https://cdn.shopify.com/s/files/1/0431/3248/5799/files/annamayya_audio_songs_free_com.pdf
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/promega_luciferase_reporter_plasmid.pdf
    • https://cdn.shopify.com/s/files/1/0435/0722/0635/files/talalerirofopofuzawonin.pdf
    • https://cdn.shopify.com/s/files/1/0431/5290/0260/files/demawuwavitunagogozetole.pdf
    • https://cdn.shopify.com/s/files/1/0462/5645/5831/files/3567758794.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_off00004edf.bin
35aec8d9a3f5761a724ac00c20604a0edd38af155001b0cce80fe26cfca9e1ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EDF 5284 bytes
font_01_sfnt_off000060f3.bin
3560922eaac07e6a341c985d6b9d1d18daf296272c5600dc78977fa3a27945db
pdf-font-stream PDF embedded font (sfnt) at offset 0x60F3 9704 bytes