Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea022abcf587d6e7…

MALICIOUS

PDF

51.6 KB Created: 2020-08-27 23:31:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90fbd6b3c03d14a006b4d21427baaa33 SHA-1: 67acc8c1d4bbfaf2bae19a9b39f94ed1ff32be2d SHA-256: ea022abcf587d6e74bb10d418f107990b64fa6652494a4370f693da4045574f3
120 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/pify?keyword=asus+flip+2+in+1+review'. This URL is likely used to redirect the user to a malicious site, possibly for phishing or malware delivery. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm techniques used to artificially boost search rankings or distribute malicious content. The presence of the redirector URL and the link farm suggests a social engineering attack aimed at tricking users into visiting a compromised or malicious website.

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/pify?keyword=asus+flip+2+in+1+review
    • http://files.seafaith.net/uploads/1/3/1/4/131407952/5667686.pdf
    • http://files.long-lake.org/uploads/1/3/1/0/131070518/0967890532.pdf
    • http://vedumab.portchestereyecare.com/uploads/1/3/0/8/130813848/501e98da507f232.pdf
    • http://files.mamaetal.com/uploads/1/3/1/6/131606373/1028403.pdf
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/46622788641.pdf
    • https://cdn.shopify.com/s/files/1/0434/5797/0329/files/sixumelikomegasutop.pdf
    • https://cdn.shopify.com/s/files/1/0434/2956/0486/files/26816279919.pdf
    • https://cdn.shopify.com/s/files/1/0431/4749/3536/files/93578159580.pdf
    • https://cdn.shopify.com/s/files/1/0427/7764/1116/files/74557233757.pdf
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/67204582207.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/the_catbird_seat_story.pdf
    • https://cdn.shopify.com/s/files/1/0432/1479/9012/files/61416436250.pdf
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/53854369665.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/xasof.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_off0000809c.bin
65f2464cb38a54c4346299daa6f0291e321d816bc5c1ad2011e301e9c537a944
pdf-font-stream PDF embedded font (sfnt) at offset 0x809C 4704 bytes
font_01_sfnt_off000090ae.bin
b1f2dcf90f769a6faaff5c10361dcc1304657cff234c8877b5957a0503e010b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x90AE 10256 bytes
font_02_sfnt_off0000b39d.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xB39D 4324 bytes