Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba979939ff4fd738…

MALICIOUS

PDF

47.3 KB Created: 2020-08-30 03:19:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b19b5b4e5e351afdba27c31bf62b1187 SHA-1: 58a3287136061280346a80c6e378d4f7d35a753d SHA-256: ba979939ff4fd7382d59889030d2e7cd0f38458def2d8c44b7e6203ec6393d90
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily garbled, contains text related to 'antrian paspor versi 1 apk' and the malicious URL, suggesting a lure to download an application or access further malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/wix?keyword=antrian+paspor+versi+1+apk
    • https://static.usrfiles.com/ugd/b8c837_96f1f79f01ab40d9b0803742480f2cd7.pdf
    • https://static.usrfiles.com/ugd/a382ee_ca5089fdb2344d85b369d13815fedac4.pdf
    • https://static.usrfiles.com/ugd/40b9e6_820f0d1d992c489b96feebe574615b35.pdf
    • https://static.usrfiles.com/ugd/b11f6d_96864b32a2e04039b70cad57b8185932.pdf
    • https://static.usrfiles.com/ugd/b8c837_d96dc23e41924441aee5257b99493eda.pdf
    • https://static.usrfiles.com/ugd/b8c837_881cf17a5c4749aba71450fa4b908378.pdf
    • https://static.usrfiles.com/ugd/5926b4_e9911f1eb6e34bc7a072970189430426.pdf
    • https://static.usrfiles.com/ugd/b8c837_c558f0fe94124d7e8cb83514f51fbdba.pdf
    • https://static.usrfiles.com/ugd/e2c250_c18ba1d1d6834b5499111d0a7602e73d.pdf
    • https://static.usrfiles.com/ugd/efb3f0_226d39bef1b247b0ad0bd03d99865a3f.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/85678457320.pdf
    • https://cdn.shopify.com/s/files/1/0435/6869/3411/files/57951981558.pdf
    • https://cdn.shopify.com/s/files/1/0436/0175/6323/files/intermediate_accounting_15th_edition_chapter_15_solutions.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_off00006af3.bin
c7d7db437a18560452a466347d24c1315d409f6b12e7bbd40406a5ccee5c6808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF3 4732 bytes
font_01_sfnt_off00007b15.bin
8a22090f178b06de9e6482881dfcb591ca145c4802d1bdea246cbb2de3d5a534		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B15 12212 bytes
font_02_sfnt_off0000a2b9.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2B9 4324 bytes

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