Malicious PDF — malware analysis report

Static analysis result for SHA-256 92242f7f07ded14e…

MALICIOUS

PDF

110.4 KB Created: 2020-09-07 00:21:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a56e6835f56f5aa4807f67558d8e1f91 SHA-1: ef39b81282080648837d09c291ac80ad849c6a6a SHA-256: 92242f7f07ded14e07098197b40ca02ec54bc9b32f930f87483eb2e581340de2
150 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.cc/wix?keyword=vivah+full+movie+hd+720p++kickass'. This URL is presented within the document body, disguised as a movie download link, indicating a social engineering lure. The PDF also contains a link farm, suggesting an attempt to manipulate search engine results or distribute content widely. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/wix?keyword=vivah+full+movie+hd+720p++kickass
    • https://cdn.shopify.com/s/files/1/0434/5282/5767/files/43325775459.pdf
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/3529522543.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdf
    • https://cdn.shopify.com/s/files/1/0432/6051/0376/files/call_of_duty_2_game_apunkagames.pdf
    • https://cdn.shopify.com/s/files/1/0429/3980/9959/files/mobogenie_pro_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/zufur.pdf
    • https://cdn.shopify.com/s/files/1/0437/8394/6397/files/68479242232.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/eclipse_oxygen_64_bit_exe_file.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/roblox_piano_keyboard_sheets_faded.pdf
    • https://cdn.shopify.com/s/files/1/0429/1038/4295/files/activity_1.3.3_thermodynamics_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0440/1725/4558/files/jofonilojururagavileruziz.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/d_s_vending.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
stream_007_off0001730b.bin
af735928806b491137c1a8c84a25c0cbc1a7a5e4b6a117dc2f61d80dd04fec0a
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1730B 18272 bytes
font_00_sfnt_off00012186.bin
76133eb55ce7115b75c1a2d81d0fb4f755bc5880f9e424a779f2394c576c0f5e
pdf-font-stream PDF embedded font (sfnt) at offset 0x12186 5744 bytes
font_01_sfnt_off000134f8.bin
6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x134F8 3720 bytes
font_02_sfnt_off0001405b.bin
a4c0739c45de939bc7c3930db6301520cef4ae7550812dad5caf83a902fb70e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x1405B 16244 bytes
font_04_sfnt_off00018f69.bin
2d7910cb91561719ddd2ac83a47fca6159ce85a17355710fcd3ec46165e28c0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x18F69 8328 bytes