Malicious PDF — malware analysis report

Static analysis result for SHA-256 3af076c0ddadea56…

MALICIOUS

PDF

55.7 KB Created: 2020-08-29 05:03:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bf6d9110e19e07aaeb6f2b237955af7 SHA-1: deaae2898f7c8fbc2d7b4abe8c55c781c503bf6c SHA-256: 3af076c0ddadea5607722396a0d36c94bb3475b79de54ab7c9ecf5edb1be9b87
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a link farm, indicating an attempt to trick users into downloading potentially harmful files. The presence of a visual download button further supports this social engineering tactic. The primary malicious URL identified is ttraff.com, which redirects to a page related to 'adobe acrobat dc trial download offline'.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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+acrobat+dc+trial+download+offline
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/42977358300.pdf
    • https://cdn.shopify.com/s/files/1/0428/6539/3820/files/59260101595.pdf
    • https://cdn.shopify.com/s/files/1/0432/8269/4312/files/32180531143.pdf
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/genki_1_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0435/4028/3541/files/94511473443.pdf
    • https://static.usrfiles.com/ugd/b8c837_455f551428b740809a72f88b29ea7ddc.pdf
    • https://static.usrfiles.com/ugd/b8c837_93dae03bf6514f08b27d70aaf29ecec3.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b05c253910c4433b5a6a32592893e7e.pdf
    • https://static.usrfiles.com/ugd/b8c837_1a844f21c1624ec0968bceebf0a1ccdb.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7a06a31749b4e9e8983b609aa762230.pdf
    • https://static.usrfiles.com/ugd/b8c837_b88a168183e74e4495651ea79352d3bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_f0f6d74d10bc47bdb90ccbb503061549.pdf
    • https://static.usrfiles.com/ugd/b8c837_03b346ecdfe244d6a691f349a32ad0e0.pdf
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/57176191522.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupesuditijativerawepafu.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_off000070df.bin
29c08fdf13c112e1de0d69ee4c38af8dd30847c10b62ca49b1abae919791cfc7
pdf-font-stream PDF embedded font (sfnt) at offset 0x70DF 5236 bytes
font_01_sfnt_off0000834a.bin
e6e914042217ad969671cefcc218590f80df38e0ab09d401ac88929f506a535e
pdf-font-stream PDF embedded font (sfnt) at offset 0x834A 5060 bytes
font_02_sfnt_off0000949f.bin
6ebfc47bce92a15956702615a0610b254fe808ade2590980f66fddd1270c19f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x949F 10452 bytes
font_03_sfnt_off0000b825.bin
d97693af3883ef4b8ab9c4f94a2f62802c6df3627ecc5ab5b0ef46b22874265a
pdf-font-stream PDF embedded font (sfnt) at offset 0xB825 16488 bytes