Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac8924dc8650e70…

MALICIOUS

PDF

39.3 KB Created: 2020-08-30 06:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bad527f3b89493d641b37aee9baccfff SHA-1: 8dc058820ef755ddf4c50081b33aedcfdbd7ccf9 SHA-256: eac8924dc8650e70852011ac165410c1e580a1045dd32b8b833d5864d04a63c9
128 Risk Score

Malware Insights

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

The PDF file contains a prominent link that redirects to a malicious domain, disguised as a movie download. This is further supported by heuristics indicating a malicious redirector link and a link farm designed for SEO manipulation. The document body contains text related to a movie download, reinforcing the lure.

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=marshal+south+movie+download
    • https://cdn.shopify.com/s/files/1/0432/1922/2687/files/zuxanakoromad.pdf
    • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/25377520863.pdf
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/tibow.pdf
    • https://cdn.shopify.com/s/files/1/0435/0348/5092/files/calling_a_method_in_java.pdf
    • https://cdn.shopify.com/s/files/1/0433/9977/4366/files/61074370275.pdf
    • https://cdn.shopify.com/s/files/1/0429/2644/0607/files/didagikegiga.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/turejadipimigalu.pdf
    • https://cdn.shopify.com/s/files/1/0462/1287/4394/files/file_sang_word_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/bratislava_city_map.pdf
    • https://cdn.shopify.com/s/files/1/0437/9148/3042/files/lamborghini_wallpaper_4k.pdf
    • https://static.usrfiles.com/ugd/a31856_f78ea18f8c394864a491525263c3741b.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_024e837b53be4600b71e50002f551034.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/24779696171.pdf
    • https://cdn.shopify.com/s/files/1/0434/6164/0358/files/89538982974.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/40289799416.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_off00004f1f.bin
3b59e48dc97bf0fb753b3741c9a3b5010b5d445872833a65efbce5aa3d24e0f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F1F 5104 bytes
font_01_sfnt_off00006060.bin
74b81a1343423ee09f7a109cfea4b8842628baa5f07b61263bfcd71480fcc285
pdf-font-stream PDF embedded font (sfnt) at offset 0x6060 9896 bytes
font_02_sfnt_off0000825a.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x825A 4324 bytes