Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9bbaaace0e64420…

MALICIOUS

PDF

48.3 KB Created: 2020-08-13 21:43:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e411e27d5734dbd9129a4a33b2ab653 SHA-1: d9bf9b58f7b3a35f50a0797101c68c3959c608ce SHA-256: e9bbaaace0e64420328e9046349d7df0e32bda0bca40cd012be839cc660f0846
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=android+tv+store`. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, many hosted on `cdn.shopify.com`. The document body, though heavily obfuscated, also contains the malicious redirector URL and several other PDF links, suggesting a lure to external malicious content. 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/pify?keyword=android+tv+store
    • http://files.newyorkthespians.org/uploads/1/3/1/0/131070173/7cbe873e71d.pdf
    • http://sowuwifa.imagesbylk.com/uploads/1/3/1/6/131607239/lexadojesixuzogulex.pdf
    • http://bovikali.melgloverfilms.com/uploads/1/3/1/4/131408899/tawarelowe.pdf
    • http://jigixoren.caylarsamano.com/uploads/1/3/1/4/131453267/9d58dc0f7c1.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/bilogulupigirulosokekutul.pdf
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/void_botanic_miner.pdf
    • https://cdn.shopify.com/s/files/1/0428/1060/5735/files/vorikinufapewizanive.pdf
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/80948554936.pdf
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/witiwunibejazagerowulot.pdf
    • https://cdn.shopify.com/s/files/1/0434/5970/7037/files/fitatonolerowejogus.pdf
    • https://cdn.shopify.com/s/files/1/0435/9372/8158/files/pixadagesariba.pdf
    • https://cdn.shopify.com/s/files/1/0433/1575/7214/files/81168474340.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/alkyne_alkene_alkane.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/77613603118.pdf
    • https://cdn.shopify.com/s/files/1/0432/5271/1586/files/28543352279.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/18500988667.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
font_00_sfnt_off0000723e.bin
11a471e6616293c6e228dec7eeb39716f200b0ebb683af1af6782b662d667b0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x723E 4416 bytes
font_01_sfnt_off00008146.bin
116e23f6b8f815db245074a8a3ad0ae0ed9fa9ab66ed1ac70a84edd1df6c872c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8146 11088 bytes
font_02_sfnt_off0000a53b.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xA53B 4324 bytes