Malicious PDF — malware analysis report

Static analysis result for SHA-256 5041d2c36835bb70…

MALICIOUS

PDF

64.6 KB Created: 2020-09-09 07:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38df71f5ae6cf4209f346e65aaf15feb SHA-1: 6c06066c41f6af320eec8c647012b64472ba7aec SHA-256: 5041d2c36835bb7017ab3b6c7e9ee572cc4ac32d15af72b67f119d6f7fa899f3
152 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Animated movies dual audio hd' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous links to external PDFs, many hosted on cdn.shopify.com, indicates a link farm strategy to distribute the malicious payload. No scripts were extracted, but the PDF structure and embedded links are sufficient to infer malicious intent.

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.link/wix?keyword=animated+movies++dual+audio+hd
    • https://static.usrfiles.com/ugd/8c0e65_2a6a4955d459424492bed8074e0529a2.pdf
    • https://static.usrfiles.com/ugd/e643da_d54bbf4cedec4a229f4fe4653d6b3e11.pdf
    • https://static.usrfiles.com/ugd/47e66e_5af164262bba4e7687aff7b2e35061d1.pdf
    • https://cdn.shopify.com/s/files/1/0438/7602/4475/files/ralalizo.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/rijivu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1284/0862/files/without_graphic_card_games_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0431/7996/6628/files/muzomefod.pdf
    • https://cdn.shopify.com/s/files/1/0461/5186/0387/files/51528999685.pdf
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/aankhon_se_kajal_ki_tarah.pdf
    • https://cdn.shopify.com/s/files/1/0440/7105/9608/files/eclampsia.pdf
    • https://cdn.shopify.com/s/files/1/0440/0264/0030/files/random_forest_regressor.pdf
    • https://cdn.shopify.com/s/files/1/0430/5505/4999/files/32345595349.pdf
    • https://static.usrfiles.com/ugd/575363_7c80b5083bba4e9cb3ba639635465f94.pdf
    • https://static.usrfiles.com/ugd/b9801a_64e7c8a1c3d642378896b758545a70da.pdf
    • https://static.usrfiles.com/ugd/10b03a_f5ca4cd2e87d44a1b325a4df7a716f58.pdf
    • https://static.usrfiles.com/ugd/b0cb2d_9f2b691bbac84b52a369d02bf5333f35.pdf
    • https://static.usrfiles.com/ugd/eb6612_7592270d6f564ddcaf3e2bf75a51073d.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ccd.bin
4a80c5b67dd5d64d04a144b0343bc3b6aa4196c3fc207904ef6c9bd060bc520a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCD 4900 bytes
font_01_sfnt_off00009d3d.bin
d8e4b7f44dfb66ea49c7f1cefd345a391fade3fb548cc17de4cdbf151663dabd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D3D 6068 bytes
font_02_sfnt_off0000acee.bin
e63118927570244298397d8fa71a906306a03b77af76cc6ea95553954c7b5a6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACEE 10592 bytes
font_03_sfnt_off0000d15d.bin
ebaa9d42c58e3fd25c8264bcf4ef2319fee467c92cf53dcc1f377a20fc8d39b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD15D 16148 bytes
font_04_sfnt_off0000e655.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE655 4324 bytes

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