Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc9c1845de88922a…

MALICIOUS

PDF

67.5 KB Created: 2020-08-24 20:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a6273a7dcd8f313a57e84e8e78ff330 SHA-1: 4e5643ddc741220eb2e6c330df9f72229fa9c059 SHA-256: fc9c1845de88922a24f7d98f94f48dc93fc8c368dd1fc63295f5cbcaaedda62c
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=beamforming+techniques+in+radar, which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the topic 'Beamforming techniques in radar' and the malicious URL, suggesting a lure. The presence of numerous links to Shopify domains, some marked as benign and others unknown, indicates a link farm strategy to obscure the malicious destination.

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=beamforming+techniques+in+radar
    • http://files.mycountrybowtique.com/uploads/1/3/1/4/131438161/7858279.pdf
    • http://zujuvovu.alabamasunshine.com/uploads/1/3/1/4/131438641/kodozinutusikun-rodisotujajiza.pdf
    • http://files.msdivincenzo.com/uploads/1/3/0/9/130968996/1425552.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/1657552650.pdf
    • https://cdn.shopify.com/s/files/1/0429/2411/4076/files/summertime_sadness_chords.pdf
    • https://cdn.shopify.com/s/files/1/0430/6095/3249/files/79321155404.pdf
    • https://cdn.shopify.com/s/files/1/0434/7461/6472/files/78343006851.pdf
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/gokegisivuj.pdf
    • https://cdn.shopify.com/s/files/1/0438/9437/4555/files/69586051472.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/antivirus_software_free_for_dell_laptop.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/associate_cet_study_guide_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/95625633948.pdf
    • https://cdn.shopify.com/s/files/1/0450/1300/8534/files/oxford_dictionary_for_pc_windows_8._1.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_off0000988e.bin
5f8b4d62a9d444ba121cdb0adbce3163b45f3c6be5c21ee4853e2766be6cb5c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x988E 8048 bytes
font_01_sfnt_off0000b3bf.bin
59b150f31924df384118d5ed1b8a0afe3089db99ecf4f2c37e9668937bc36e7c
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3BF 5580 bytes
font_02_sfnt_off0000c682.bin
1de83f1f40403774c956bb9bb2608f9c5dc0873175190452e70951d16ca2e9ea
pdf-font-stream PDF embedded font (sfnt) at offset 0xC682 10740 bytes
font_03_sfnt_off0000eb44.bin
713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB44 16060 bytes