Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbed3631acb6897c…

MALICIOUS

PDF

34.3 KB Created: 2020-08-15 10:39:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55923b74be0f94928a992567a8ec7a51 SHA-1: eda7572dc237ded6e75a691a788b3bf85d180862 SHA-256: cbed3631acb6897c5c9fa1dbc4cb2a4c9b44bf927403883ef9f83fc7c8e8439c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to benign content on Shopify. However, one critical link, 'https://ttraff.cc/pify?keyword=balupu+movie+songs++doregama', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and a reference to movie songs, suggesting a lure to entice users to click the malicious link. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination.

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=balupu+movie+songs++doregama
    • http://files.americancollectorsusa.com/uploads/1/3/1/0/131070646/betagosifurok-tifovuwikelir-tanubix.pdf
    • http://pubilap.michaellira.net/uploads/1/3/2/6/132682124/6623843.pdf
    • http://tavol.wrapseshaz.com/uploads/1/3/2/6/132682035/zanijometi-fanavesepiwatuk-wunodiw.pdf
    • http://sumixolop.njaszn.com/uploads/1/3/1/8/131856772/34a64c075a4bb5.pdf
    • http://ramisix.saltwaterpalette.com/uploads/1/3/1/3/131398589/21a645e756cf9.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6261/files/core_microeconomics_chiang.pdf
    • https://cdn.shopify.com/s/files/1/0440/0925/9158/files/blesbokspruit_wetland.pdf
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/biw_fixture_design.pdf
    • https://cdn.shopify.com/s/files/1/0428/8980/5980/files/64581905877.pdf
    • https://cdn.shopify.com/s/files/1/0453/2423/9003/files/6350806018.pdf
    • https://cdn.shopify.com/s/files/1/0449/4937/3087/files/bifazulek.pdf
    • https://cdn.shopify.com/s/files/1/0435/7026/6273/files/50527887994.pdf
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/fosunibinajeposifimer.pdf
    • https://cdn.shopify.com/s/files/1/0433/6828/4319/files/97731985898.pdf
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/b._m._hegde_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/62040832133.pdf
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/jebegowidatenilomomu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000494e.bin
af876f0ee166a5c2327f0e9e88a0a541aac5d93e60873f56166acc84fd9b7f34
pdf-font-stream PDF embedded font (sfnt) at offset 0x494E 5388 bytes
font_01_sfnt_off00005b8a.bin
1c56f65824c3d649a9b32e40fca4f57a46f849cf7f69a343b129ff29ea828aaf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8A 9532 bytes