Malicious PDF — malware analysis report

Static analysis result for SHA-256 baf1e0a22c0d3f24…

MALICIOUS

PDF

108.0 KB Created: 2020-09-02 22:01:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9321a4347f6fb9d436af7883a71ebc3d SHA-1: 6ca928d985a005865c29e9077f419c1b69a43ef9 SHA-256: baf1e0a22c0d3f243e71e88d6522bd81afd6631550f2fedc22fcee960f0b6515
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to a known malicious redirector, specifically ttraff.com, with a keyword suggesting a lure for VMware Workstation. The document body, though heavily obfuscated, contains the URL and keywords that align with this finding. The presence of a link farm heuristic further supports the malicious intent of distributing links, likely for malware distribution.

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/wix?keyword=vmware+workstation+14.+1.+7
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/vector_canoe_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/gigiwome.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4456/files/1-_99_farming_guide.pdf
    • https://static.usrfiles.com/ugd/909b15_b277c54f7ef040dab5bc921e986a39b5.pdf
    • https://static.usrfiles.com/ugd/271e65_041cc17bef724024b48188d7950c1013.pdf
    • https://static.usrfiles.com/ugd/724fb5_b598dbd39fee44d9838a4f518b5b0d07.pdf
    • https://static.usrfiles.com/ugd/fbccce_35842f9b74454d18a2249af6e4386c24.pdf
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/99569192804.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4949/files/go_ask_alice.pdf
    • https://cdn.shopify.com/s/files/1/0434/2471/0807/files/tixiwalukolo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0319/files/84496150649.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_b08bab2bf4084bb6b87cc48b4dd48bfc.pdf
    • https://static.usrfiles.com/ugd/b8c837_3851de46bcda44aaa09f9777e3047ad9.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_off00015021.bin
83747b78f710270cb9aa6420d3273dc581c676779f692d238384963d6377f74b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15021 5172 bytes
font_01_sfnt_off000161cd.bin
5485a873593718a5711191fe5c9ebf6e0619be61bac61a039b3d1fac7cfe7e59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x161CD 13720 bytes
font_02_sfnt_off00018e18.bin
e8220701f4abc5c2578c6b81392a5eb74511f2628282971200dd586ef0f811f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18E18 16072 bytes

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