Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae65bba83deb301…

MALICIOUS

PDF

55.5 KB Created: 2020-08-30 01:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17988be7ee8356b9643c524f3edd4bba SHA-1: 7b05926ddbe6582e293ac130ea231b7bb034da6b SHA-256: eae65bba83deb3014fcc2a60a2ce448a6607d9e153ce489052d8b3708fedf76f
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=city+car+driving+2.2+7+araba+yamas%25C4%25B1+indir'. This URL is presented within the document body, disguised as a search result for game-related content, likely to trick users into clicking. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the malicious redirector is sufficient for a high-confidence assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.ru/wix?keyword=city+car+driving+2.2+7+araba+yamas%25C4%25B1+indir
    • https://static.usrfiles.com/ugd/89064d_c6675b327d6a4bcdb48d3c2f83e99d11.pdf
    • https://static.usrfiles.com/ugd/3826db_c556f81796d8451aae546bf95df48f1f.pdf
    • https://static.usrfiles.com/ugd/0fdb6d_85193e6496b54397afc43f77015db526.pdf
    • https://static.usrfiles.com/ugd/97368a_d0066bf81299449ea8c9499381261796.pdf
    • https://static.usrfiles.com/ugd/b8c837_3e75b790cbea4b9398d784f0834df93e.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e117074dfaf411d888b606c2b7bed3b.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5772/files/bujorapuvopulaximu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6753/1673/files/58091466765.pdf
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/mods_para_minecraft_1._8_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/fopexoviludaso.pdf
    • https://cdn.shopify.com/s/files/1/0430/3886/7607/files/1769490646.pdf
    • https://cdn.shopify.com/s/files/1/0431/2825/8726/files/types_of_gram_negative_bacteria.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/96084619901.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_off00006c72.bin
4f757b9221e752ad0c6b7fa4830fda77d25d81773567c0b09be3c4acba00f3de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C72 5388 bytes
font_01_sfnt_off00007ebb.bin
03f6f85c46550ba4f1eb1a9d87d6eac6f6b5ee305275a1df4433003cbab8db6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBB 14516 bytes
font_02_sfnt_off0000aa7f.bin
684a3c196e802b4dc45ee85e0d12f41c83d6b6c6a55a83cec5fb8e332ee9aa36		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA7F 16376 bytes
font_03_sfnt_off0000c027.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC027 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.