Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce2921bd27999650…

MALICIOUS

PDF

43.4 KB Created: 2020-08-31 05:04:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ffc02fc745030095088219bd5fdfe44 SHA-1: 6b56a4d07618fc7401a7b673ec065e3b5bbbb3d1 SHA-256: ce2921bd27999650504f961f048e1c87e45c5a21d83fa2ed70a6db63bceb2548
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=m-+audio+keystation+49e+manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, one of which is 'https://cdn.shopify.com/s/files/1/0429/6137/1290/files/fovikazave.pdf'. The document body, though heavily obfuscated, contains references to the target URL and appears to be a lure for a manual, suggesting a social engineering attack.

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.ru/wix?keyword=m-+audio+keystation+49e+manual
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/fovikazave.pdf
    • https://cdn.shopify.com/s/files/1/0438/0118/2370/files/the_scrambler_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/84053911605.pdf
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/aimbot_pubg_mobile_apk_ios.pdf
    • https://static.usrfiles.com/ugd/8cbfce_8e09e434561e4764ac53cb2a8d12e16b.pdf
    • https://static.usrfiles.com/ugd/e3c460_500a8f97fb1d4913a45cbdbc1ed0da37.pdf
    • https://static.usrfiles.com/ugd/b8c837_8bcff15cfa1c4370b1d950ab64693aab.pdf
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/aeolian_harp_etude.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/59201071166.pdf
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/instagram_password_finder.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/yamaha_moto-_4_350.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/namego.pdf
    • https://cdn.shopify.com/s/files/1/0462/3165/0453/files/feqiye_teyran_iirleri_trke.pdf
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/satevawejelefuwisozef.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_off00005d18.bin
4e65a79d1494efd8997b052f029ba04bb484e6e5ed71e7ff3fb068de2656ef04
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D18 5204 bytes
font_01_sfnt_off00006ed2.bin
75f83d9c1e98c27b9f0f21f668c50b0b2e42bb1613c3e02413e6ba7f6be73af3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED2 10456 bytes
font_02_sfnt_off000092a1.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x92A1 4324 bytes