Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b2e2f198692a313…

MALICIOUS

PDF

43.2 KB Created: 2020-09-01 07:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aa8af74129147f17fdd5f7b5e33b22a SHA-1: 71a674171b042c2fd62e76fafcadf38b5c37f96c SHA-256: 4b2e2f198692a3135f848f6d1d3d4da3473f583de895efe498109665af1cf743
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a link farm technique. The document body, though heavily obfuscated, contains references to 'Aliexpress apk new version' and the malicious URL, suggesting a lure to download potentially malicious software. The presence of multiple embedded links further supports the link farm attack pattern.

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=aliexpress+apk+new+version
    • https://static.usrfiles.com/ugd/166c09_b44c5b24bef44f199c9a9ebc8f5544a3.pdf
    • https://static.usrfiles.com/ugd/3e0cb9_78e9ba33ecad4d09b21b522949f2a494.pdf
    • https://static.usrfiles.com/ugd/b914b5_56e7f8a78fd54335a8fc59895e3c5c71.pdf
    • https://static.usrfiles.com/ugd/b8c837_31862c9f39b64637ba7bac4ac87c4ad1.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/29978199648.pdf
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/morabijufudi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/adverbs_of_frequency_exercises_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/asma_attack_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0437/7840/8609/files/ideas_para_navidad_2019_manualidades.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_off00005dbb.bin
050ac1e739b3c24156ddba7bee203c7dcd0da86ddc2343296675ec1b5c0631ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBB 4796 bytes
font_01_sfnt_off00006e17.bin
f06ae002bc538ea6890c830ad743507af93a290719fafd7d6e884921066308d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E17 10640 bytes
font_02_sfnt_off00009256.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9256 4324 bytes

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