Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a5770ab8d731ae…

MALICIOUS

PDF

39.4 KB Created: 2020-09-09 10:54:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02dcbe55b267241e6f3db2937052c48e SHA-1: 85b18cf63f07fd83e4c18fb7c410657c2043c22c SHA-256: f7a5770ab8d731ae0a901782dc208c2d2fadd442ecb0069e0dfc7c1c55cea599
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to a link farm hosted on cdn.shopify.com, designed to redirect users to malicious infrastructure. One such redirector URL is https://ttraff.club/pify?keyword=beamng+drive+apk++android. The ML classifier strongly indicates malicious intent, and the overall structure suggests a phishing or malware delivery attempt.

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.club/pify?keyword=beamng+drive+apk++android
    • https://cdn.shopify.com/s/files/1/0464/7492/0104/files/veluzixopopofabagal.pdf
    • https://cdn.shopify.com/s/files/1/0437/8843/5613/files/operational_amplifiers_theory_and_practice.pdf
    • https://cdn.shopify.com/s/files/1/0429/6353/3977/files/71462066586.pdf
    • https://cdn.shopify.com/s/files/1/0433/8388/1893/files/30627800220.pdf
    • https://static.usrfiles.com/ugd/3225da_1f72921ec2984f4f8036b5e40dafe074.pdf
    • https://static.usrfiles.com/ugd/e2f197_c21d6bb134df487382b257af7cafe367.pdf
    • https://static.usrfiles.com/ugd/72b0e7_0e08599aebe946198db333c413048df1.pdf
    • https://static.usrfiles.com/ugd/63022f_51423d6b1aee4bb7adb5705325f57199.pdf
    • https://static.usrfiles.com/ugd/ea2c45_3aec88f24d6449b38908b7342a900c29.pdf
    • https://cdn.shopify.com/s/files/1/0435/1436/4059/files/89434650228.pdf
    • https://cdn.shopify.com/s/files/1/0428/8793/8211/files/68369202138.pdf
    • https://cdn.shopify.com/s/files/1/0433/9626/8193/files/76140086618.pdf
    • https://cdn.shopify.com/s/files/1/0429/4665/8463/files/chemical_and_biological_warfare.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/29878061118.pdf
    • https://static.usrfiles.com/ugd/ea2f88_7efa770e0ead4fbaa44a0150467f5c54.pdf
    • https://static.usrfiles.com/ugd/7ef0dc_f05e16ff2b51450ca4c740adf8ec21b4.pdf
    • https://static.usrfiles.com/ugd/1849a1_46f88b138acf40b28cc0de0115d56a6a.pdf
    • https://static.usrfiles.com/ugd/b7082a_56500dc114e4453ea06c2ebc2c26bb51.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_off00004f4b.bin
73c28fc9fae3fc41c13a38618c4c27a7c09224841c0e6eb6a269de72f0edeb46
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F4B 4948 bytes
font_01_sfnt_off00005ffd.bin
4c24bd93c5b4e04be2c5a5f895da0903663504c70a977a3bdf53b54fadd428a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFD 10096 bytes
font_02_sfnt_off0000829d.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x829D 4324 bytes