Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9fe3968e33f04c…

MALICIOUS

PDF

47.3 KB Created: 2020-09-01 08:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 720b6ae26b5221282ef213e0da6ad588 SHA-1: c6ded5457566e0f17fc0d0666ce55c68d4d4778d SHA-256: da9fe3968e33f04c47328203f35ba8a8ecb0eee6e1d263715062bd8636aedb13
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=adobe+flash+player++windows+xp+opera'. This URL is designed to trick users into believing they are downloading a legitimate software update. The document also contains a large number of embedded links, many hosted on Shopify, which is characteristic of SEO link farm techniques used to distribute malicious content.

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=adobe+flash+player++windows+xp+opera
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3294478915.pdf
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/22947733501.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/maraf.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/buwimutepigezawapofokalib.pdf
    • https://static.usrfiles.com/ugd/3d0627_4cc515b237244265b722499d5c9c3394.pdf
    • https://static.usrfiles.com/ugd/97aff7_1335252ea82d4764bd2bbfd2aa638208.pdf
    • https://static.usrfiles.com/ugd/7f46b5_c9ec80212c394c5e8c94c20ae67b1255.pdf
    • https://static.usrfiles.com/ugd/3b7182_55fcf295ae46443abdfca43657ab1f19.pdf
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/27762104084.pdf
    • https://cdn.shopify.com/s/files/1/0452/5162/5121/files/faguweke.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/javeve.pdf
    • https://cdn.shopify.com/s/files/1/0432/0290/4222/files/dark_souls_3_wiki_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/9994/7169/files/88694996701.pdf
    • https://cdn.shopify.com/s/files/1/0431/4900/0864/files/feral_druid_pvp_guide_8._0.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_off00006c9f.bin
7097579d6830853e8e99fd40541444de690d851e8aa3229d7eba7e69c845d4d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9F 5228 bytes
font_01_sfnt_off00007e63.bin
dbc05d52087836d24365fa95f13e12bec0aa4c41882f909785c69f4b184b4389		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E63 10388 bytes
font_02_sfnt_off0000a1de.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1DE 4324 bytes

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