Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3c22231020baf5…

MALICIOUS

PDF

39.8 KB Created: 2020-08-20 08:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1554ea573580f6977da12447c05f4168 SHA-1: 8bff60f1bf69f9dc616899c9a31413253c741ea7 SHA-256: 1b3c22231020baf596032cbfca59d9eec63bc57de5ba538507aab4783db03c99
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector pointing to a "banner maker pro free crack" lure. The document also includes a heuristic indicating it's a password-protected archive lure, suggesting the user is expected to download an encrypted payload. The presence of a link farm and a malicious redirector strongly suggests a phishing or malware distribution attempt.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/pify?keyword=banner+maker+pro+free++crack
    • http://zojanop.dedethford.com/uploads/1/3/1/4/131410399/444bc6cce2.pdf
    • https://cdn.shopify.com/s/files/1/0435/1682/1663/files/anti_jamur.pdf
    • https://cdn.shopify.com/s/files/1/0430/6350/9146/files/rulejus.pdf
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/9198516577.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/windows_xp_bootable_iso_file_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/75179458192.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/morisulumamanedozazuvojid.pdf
    • https://cdn.shopify.com/s/files/1/0460/9182/9412/files/79882364620.pdf
    • https://cdn.shopify.com/s/files/1/0433/0999/0043/files/shoulder_impingement_syndrome_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nefodegaxinavikiva.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be2.bin
e770b5b35f053b5f0993f836e0a6be5977b3c3a3b9614cbaafcae2cad0889053		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE2 5064 bytes
font_01_sfnt_off00006d04.bin
74083f7566fe1d96c69b7021ce269f86a0b1600744238e39a78d218c3a062b52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D04 11836 bytes

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