Malicious PDF — malware analysis report

Static analysis result for SHA-256 8db432ce9b3c8705…

MALICIOUS

PDF

89.4 KB Created: 2020-09-19 22:43:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b15e28901ccda9ff4ee47b763bff3445 SHA-1: b27b1194bd4b55bed9d4509181573a5b605cb621 SHA-256: 8db432ce9b3c8705cf9c478a9cc4603260530cc29e6cbebf9ff64b5b1c75926a
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=ffxiv+hq+crafting+guide', suggesting a lure to a fake guide page. This indicates a phishing or scam attempt, likely to lead to further malicious content or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=ffxiv+hq+crafting+guide
    • http://files.roadhawkdownunder.com/uploads/1/3/1/1/131163666/f8b59113da88.pdf
    • http://files.ragetoknow.com/uploads/1/3/1/3/131383456/rovuguvagat.pdf
    • http://dowijoj.simply-sound.com/uploads/1/3/1/1/131164250/gizumal.pdf
    • http://pugalawiv.trailofhumanity.com/uploads/1/3/1/6/131637409/fepib-forogosaze.pdf
    • https://fbd96fce-9cec-4091-bdee-f255ee473af6.filesusr.com/ugd/bf0735_ac08ae213df741949ab08903043f5423.pdf?index=true
    • https://f126c04c-dca8-4da6-a7cc-d9bc8fa4334f.filesusr.com/ugd/c57cae_8d83f82add944c60bcba4effc709e763.pdf?index=true
    • https://3edfbc18-986d-48f3-b29b-ab2a1c7a0291.filesusr.com/ugd/1849a1_7e78f6f07333471a98a483078e2ef2af.pdf?index=true
    • https://013b98bd-9082-4c2a-82e0-555203a6fca3.filesusr.com/ugd/5bb01c_edeacd76e30b4b83b2f787917788ea1c.pdf?index=true
    • https://a6b9d5e5-fc0c-47e8-94c8-4bdc724c30ce.filesusr.com/ugd/4c7633_34e5a31876f041a6b20242201a17c506.pdf?index=true
    • https://6cb989e6-d762-4a65-82c5-1167639810fd.filesusr.com/ugd/bc84a3_85fcebc8d51e4ce293112499dd4d9333.pdf?index=true
    • https://70db7ca8-3d90-4e73-b71a-01b834fb5347.filesusr.com/ugd/b5472a_793ca8268aea40c1bdd0fdf6a2e172dd.pdf?index=true
    • https://b48db0b9-0c7d-40e4-a556-a958a5ce7c96.filesusr.com/ugd/54dfea_5451d247d7124cbfacc300a0aebe66a6.pdf?index=true
    • https://af335121-7403-4980-807a-0a6f61ed1f53.filesusr.com/ugd/5a4aad_7e3373a94bff4f4287b45feac5d08e23.pdf?index=true
    • https://97013909-1267-4ff1-aad8-ddf4c9296042.filesusr.com/ugd/95b9ea_0b0f3f1b66774679b17ce88eaf6f3c36.pdf?index=true
    • https://e93a3e60-4ec6-47a1-bf11-59727221afd8.filesusr.com/ugd/ede58b_a28b260a6f9a47c8a8dcae5952bd1eb5.pdf?index=true
    • https://08e03824-5143-41b3-a7da-14e0a77a96ff.filesusr.com/ugd/bd5c68_e7d81ac7ad4c4843bd2fe2516d26493c.pdf?index=true
    • 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_off00011c61.bin
583cd1afdd6f6d96d442905a1b4aa851341d1afa8ae8d38ea3f300ba3de6d8ba
pdf-font-stream PDF embedded font (sfnt) at offset 0x11C61 5284 bytes
font_01_sfnt_off00012e5b.bin
c202ba9b83523bd42f554ec48faef5a141e3f38b9405a0b2e2c664f0f492cc90
pdf-font-stream PDF embedded font (sfnt) at offset 0x12E5B 13160 bytes