Malicious PDF — malware analysis report

Static analysis result for SHA-256 51f0ec2026e3346c…

MALICIOUS

PDF

49.2 KB Created: 2020-08-04 09:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7087e12f4456a2cf27ac687830c143ef SHA-1: d6f7ebadef5406428d5ddda6247619c4aeddc01a SHA-256: 51f0ec2026e3346c6e64b28084afdc8bc90d2a6d615f31992fceae878a212512
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=browns+2020+schedule+pdf`. This URL is embedded within the document body, suggesting a social engineering lure to trick the user into clicking it. The PDF also contains a large number of external links, many hosted on `cdn.shopify.com`, indicating a link farm for SEO poisoning or distribution. No scripts were extracted from this sample.

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/pify?keyword=browns+2020+schedule+pdf
    • http://files.fayephotographyblackpool.co.uk/uploads/1/3/0/8/130814636/supigoriluw.pdf
    • http://files.champions4childrenswfl.com/uploads/1/3/2/6/132696104/nebabomenediwugikowa.pdf
    • http://files.newworldtribe.us/uploads/1/3/0/8/130874143/6813ca.pdf
    • http://files.paulaflach.com/uploads/1/3/0/7/130740141/8901646.pdf
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/9189619454.pdf
    • https://cdn.shopify.com/s/files/1/0435/5915/7921/files/amputation_types.pdf
    • https://cdn.shopify.com/s/files/1/0434/6662/1094/files/kimajonekolaneretejaka.pdf
    • https://cdn.shopify.com/s/files/1/0437/2270/2999/files/81615955884.pdf
    • https://cdn.shopify.com/s/files/1/0429/1959/2099/files/mikilikokinalonebuboreba.pdf
    • https://cdn.shopify.com/s/files/1/0433/4904/9499/files/duzexejetekinefubolapulal.pdf
    • https://cdn.shopify.com/s/files/1/0434/4859/8678/files/luxipasekazenomobiloxum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/69602042665.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5755/files/76776465248.pdf
    • https://cdn.shopify.com/s/files/1/0431/2501/4685/files/nuzafazerisepakeruz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/zemobiroxineva.pdf
    • https://cdn.shopify.com/s/files/1/0438/4397/7366/files/pamuzakomokef.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/
    • https://cdn.shopify.com/s/files/1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a2c.bin
66129635eec281cd1bbae8aa0e2dc92ff12edda22a475ef7fd0408653f129c1d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 5448 bytes
font_01_sfnt_off00008ccd.bin
7457a7faadc19492db78212765573c98bb3c3ca98e88fa1ec22ce73c56fbd672
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCD 13592 bytes