Malicious PDF — malware analysis report

Static analysis result for SHA-256 78ece059f191cc67…

MALICIOUS

PDF

45.8 KB Created: 2020-08-29 22:32:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f98b8e56efa348d07027c4cd3e70223 SHA-1: a3e95319c6cb8ba7aab3b79ccc1b1ed1264bb507 SHA-256: 78ece059f191cc67364711f2c80348ea6d27d46872a089f594d2f5bccf9f7050
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a link to a known malicious redirector, ttraff.cc. This heuristic, combined with the PDF structure containing a large number of external links, suggests a link farm or redirection attack. The document body contains garbled text but also includes the malicious URL, reinforcing its role as a lure. 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.cc/wix?keyword=dfsk+2013+wad+kniss
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/bulutangkis_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0434/1855/0430/files/battle_brothers_permanent_destruction.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/10730194929.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/wogujakazelowevo.pdf
    • https://cdn.shopify.com/s/files/1/0459/6485/3408/files/ponomamepidure.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb5060f414fa44a087299213ea30f6b9.pdf
    • https://static.usrfiles.com/ugd/b8c837_31f242bce1ab455abd661613a259dda0.pdf
    • https://static.usrfiles.com/ugd/b8c837_9457d1d0d431470e8844057789c5ded9.pdf
    • https://static.usrfiles.com/ugd/b8c837_9dd1668e45fa4e5baa66a259ade62de2.pdf
    • https://static.usrfiles.com/ugd/353d00_5e2ef13b45fb4729b25ab21e6086ff67.pdf
    • https://static.usrfiles.com/ugd/b8c837_04d1f3a3380e4712b1ef075d87b1ab9a.pdf
    • https://static.usrfiles.com/ugd/735189_5a779c766f974005a0880772e6cb202b.pdf
    • https://static.usrfiles.com/ugd/b8c837_9494b898820b4f958ade00e785dd5ab7.pdf
    • https://static.usrfiles.com/ugd/b8c837_14a25d68ba944863b75be45b38f4838e.pdf
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/all_human_body_systems_and_their_functions.pdf
    • https://cdn.shopify.com/s/files/1/0432/8947/7273/files/sikuzujipisewut.pdf
    • https://cdn.shopify.com/s/files/1/0438/5911/6182/files/affinity_photo_workbook_download.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_off00008fbd.bin
89dd7eabac2b7d337455c6279b88e3669d1ab535f5c23c9f3c7da92268f4993e
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8FBD 17432 bytes
font_00_sfnt_off0000527a.bin
694d5c86d859a1d570d410e5df0817a0d90cbecb0d0b03e5e55bdfd0e7fa69a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x527A 5420 bytes
font_01_sfnt_off00006518.bin
99e9323ac58876dc7276d601890cab29f9f91e2734497e41b8791a93ae70c886
pdf-font-stream PDF embedded font (sfnt) at offset 0x6518 13972 bytes