Malicious PDF — malware analysis report

Static analysis result for SHA-256 5783f6dfe0d8d416…

MALICIOUS

PDF

48.6 KB Created: 2020-09-12 04:13:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c4a421788e477dcc3fd1d1c8253610a SHA-1: bf199cf1158136cfd8f91d6d008a4cb287d2bf77 SHA-256: 5783f6dfe0d8d41698bf01b4dc0fc9a62bc44d42ff120dfeee9ff1ab15bb598a
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, many of which point to known malicious redirectors or link farms. The document body, though heavily obfuscated, contains references to 'Baba Yaga the Flying Witch' and includes the malicious URL https://ttraff.me/wix?keyword=baba+yaga+the+flying+witch+pdf, suggesting a lure to a malicious site. The heuristic firings confirm the presence of malicious redirector links and a link farm.

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.me/wix?keyword=baba+yaga+the+flying+witch+pdf
    • http://nunugig.philipchindamo.net/uploads/1/3/1/6/131606349/leduwokonusome.pdf
    • http://files.ironmountainwhisky.com/uploads/1/3/0/7/130775554/mufedufoperopi_wuripikexawaz.pdf
    • http://sixumid.occasionaldilemma.com/uploads/1/3/0/8/130874207/voxevuxumivaj.pdf
    • http://files.coverallbases.org/uploads/1/3/2/6/132681969/4af332dd98.pdf
    • https://cdn.shopify.com/s/files/1/0431/5349/0074/files/ultraman_r_b_the_movie.pdf
    • https://cdn.shopify.com/s/files/1/0433/4573/9941/files/calamity_wiki_class_guide.pdf
    • https://static.usrfiles.com/ugd/e5cbe5_50fb39dc338a44b6b3a4b69b02cf8ad7.pdf
    • https://static.usrfiles.com/ugd/a64c8c_9c5a3dbabbe74400b34ab3d7f00f5395.pdf
    • https://static.usrfiles.com/ugd/834936_ba9cb3aee02c40c099219720dd24152e.pdf
    • https://static.usrfiles.com/ugd/3b7182_04fafebd297d4916a3b2d312e58934a2.pdf
    • https://cdn.shopify.com/s/files/1/0434/5112/1820/files/33671446971.pdf
    • https://cdn.shopify.com/s/files/1/0435/4995/0111/files/74431014322.pdf
    • https://cdn.shopify.com/s/files/1/0436/9891/3435/files/soribeze.pdf
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/robotech_rpg_tactics_rules.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/89083752169.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004919.bin
615a610a8dc9f190cb9b62641e41afc771e7ecf875c4ce604854d993cf32a19c
pdf-font-stream PDF embedded font (sfnt) at offset 0x4919 13168 bytes
font_01_sfnt_off00007234.bin
b58f37a6a88ccb22f0c4907c0d298a93efc49cac6c5274dbc6ca5f3644e334fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7234 5204 bytes
font_02_sfnt_off000083f6.bin
d075da8433495221049b226c42f1fe8d45af1d84b908db34825990825db084b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x83F6 9612 bytes
font_03_sfnt_off0000a4e1.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E1 4324 bytes