Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6b239080537950…

MALICIOUS

PDF

43.9 KB Created: 2020-07-30 11:23:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4addb69f23ff6e6ac77a7e050e4007e5 SHA-1: fc2ff5f368c47a4a0df0694bff6883ef9b953577 SHA-256: 9c6b239080537950cea5e982eca893eb1708eb3ffdb40e07ff00e2eec574a0d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/pify?keyword=addition+reaction+pdf'. Additionally, it exhibits a PDF link farm heuristic, with numerous external PDF links, many hosted on cdn.shopify.com. The document also contains a high-risk lure for remote support tools, suggesting a social engineering pretext. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/pify?keyword=addition+reaction+pdf
    • http://files.diamonddusterssoftball.com/uploads/1/3/0/9/130969809/7834564.pdf
    • http://files.inspiredayurveda.com/uploads/1/3/0/7/130776462/tanaluzu-ladegoxudanafu-mepoj-roweladuxav.pdf
    • http://files.malebeautybible.com/uploads/1/3/0/7/130739119/pelos.pdf
    • http://files.olyhp.com/uploads/1/3/2/3/132303126/9074239.pdf
    • http://files.bellvillerent-all.com/uploads/1/3/0/7/130776073/sogabet.pdf
    • http://files.diamonddusterssoftball.com/uploads/1/3/0/9/1309
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98029452840.pdf
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/rexelaxumebivaxujili.pdf
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/81842195926.pdf
    • https://cdn.shopify.com/s/files/1/0431/7842/6534/files/wumugikidoluma.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/18502668646.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/64241618534.pdf
    • https://cdn.shopify.com/s/files/1/0435/2324/4191/files/lurefunomadososinin.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6833/files/wuvobunugopetax.pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3794/files/38487297456.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29025511016.pdf
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/87318835390.pdf
    • https://cdn.shopify.com/s/files/1/0434/6924/2534/files/ratilitoxelovexawov.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_off00007072.bin
4261eaa3b191a3382c2f95c190c1895485d2bcf4b6302b7c61cb48b831469593
pdf-font-stream PDF embedded font (sfnt) at offset 0x7072 4716 bytes
font_01_sfnt_off0000807a.bin
5dae0734c2b28047fce725a4c6fdc930c21225043f59822879d31079d39706d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x807A 9912 bytes