Malicious PDF — malware analysis report

Static analysis result for SHA-256 bef2e233fa3061d9…

MALICIOUS

PDF

55.2 KB Created: 2020-08-26 06:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95fb2c5a3390d3eb6fa8dba4b52d451c SHA-1: 4a118a4686fcdb400a6a981304cbc955c31b16cf SHA-256: bef2e233fa3061d92dd03dc26383e18fd9f73eeac2fca70c0e31248449e373f0
120 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body text, though partially corrupted, includes a reference to '2008 vw passat owners manual downloa' and the malicious URL, suggesting a lure for users seeking this information. The presence of a large number of external PDF links further indicates a link farm or SEO manipulation tactic. The primary malicious URL is https://ttraff.cc/pify?keyword=2008+vw+passat+owners+manual+downloa, which likely serves as a redirector to further 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.cc/pify?keyword=2008+vw+passat+owners+manual+downloa
    • http://romezeb.flavoredflowstudio.com/uploads/1/3/2/6/132680835/kubajubodotox-duwerexutinopov-wimugil.pdf
    • http://files.movingcompanyokc.com/uploads/1/3/1/4/131437246/lelunalilubo.pdf
    • http://files.vonderhauswulfgermanshepherd.com/uploads/1/3/0/8/130813797/fivepeno.pdf
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/xugunaninomivuwunevowuke.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0903/files/loturanapafubiwapupobo.pdf
    • https://cdn.shopify.com/s/files/1/0438/7323/9195/files/87241694115.pdf
    • https://cdn.shopify.com/s/files/1/0432/8685/5840/files/sinuzajuzu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6265/7177/files/nomamema.pdf
    • https://cdn.shopify.com/s/files/1/0432/4950/0315/files/zewusajimifo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdf
    • https://cdn.shopify.com/s/files/1/0433/5370/2550/files/24424555144.pdf
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/topulu.pdf
    • https://cdn.shopify.com/s/files/1/0450/6848/4758/files/case_study_sample.pdf
    • https://cdn.shopify.com/s/files/1/0431/1888/7073/files/reved.pdf
    • https://cdn.shopify.com/s/files/1/0429/4977/1430/files/expressions_allemandes.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_off00007ae8.bin
68b18aebdeb697b81f332cff695e77b7d1b264f49a22951fa8983cb8d67214a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE8 5628 bytes
font_01_sfnt_off00008df7.bin
f3d6fca38b2f9edc96e89d8d9524d4c5c8e934d030ccd9c55a12aba3de51306a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF7 14308 bytes
font_02_sfnt_off0000ba8c.bin
d9b012042df5fe8dc074c42eae0f7627b15178249d85eb70dc7afc452d134ec7
pdf-font-stream PDF embedded font (sfnt) at offset 0xBA8C 16132 bytes