Malicious PDF — malware analysis report

Static analysis result for SHA-256 4651b77daf756080…

MALICIOUS

PDF

46.7 KB Created: 2020-09-07 07:31:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: df4269c1f095c77faf345ce505e07d00 SHA-1: 98204321cf3504bf12f53f249307e0e6fe73406b SHA-256: 4651b77daf75608090e8678fa59b6e3448c3e14d7f702285cf931fa856da0f2c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=blackmagic+pocket+cinema+camera+4k+manual+focus'. Additionally, it exhibits characteristics of a link farm, with numerous embedded links to benign-looking PDFs on Shopify. The 'SE_PASSWORD_ARCHIVE_LURE' and 'SE_MFA_LURE' heuristics suggest a social engineering pretext, likely to trick users into providing credentials or approving MFA prompts after clicking the initial malicious link. No scripts were extracted, but the combination of a malicious redirector and social engineering lures strongly indicates a phishing or credential harvesting attempt.

Heuristics 5

  • 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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/wix?keyword=blackmagic+pocket+cinema+camera+4k+manual+focus
    • https://cdn.shopify.com/s/files/1/0435/9002/5379/files/circulatory_system_anatomy.pdf
    • https://cdn.shopify.com/s/files/1/0448/0296/5665/files/principais_abordagens_da_administrao.pdf
    • https://cdn.shopify.com/s/files/1/0463/6796/5339/files/verejumav.pdf
    • https://cdn.shopify.com/s/files/1/0433/4151/2855/files/51718265977.pdf
    • https://cdn.shopify.com/s/files/1/0433/8240/7335/files/35228435551.pdf
    • https://cdn.shopify.com/s/files/1/0432/6558/9414/files/27956020640.pdf
    • https://cdn.shopify.com/s/files/1/0468/8746/9213/files/30580281409.pdf
    • https://cdn.shopify.com/s/files/1/0430/6108/4322/files/calendar_2019_march_template.pdf
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/rifakunisidoxujowulibuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/the_norliss_tapes.pdf
    • https://cdn.shopify.com/s/files/1/0439/8628/8798/files/kidafenolanuduselajigegob.pdf
    • https://cdn.shopify.com/s/files/1/0429/9613/8137/files/85673613060.pdf
    • https://static.usrfiles.com/ugd/b8c837_d9acda9ffa934ff98a9452f81e46c4aa.pdf
    • https://static.usrfiles.com/ugd/9cb927_6dada4909c1c4ce39588d03d81b05383.pdf
    • https://static.usrfiles.com/ugd/0182ef_e4a8d33744864da3a416118083c5ac5a.pdf
    • https://static.usrfiles.com/ugd/1decf9_ea3b22a3d4694a61907bbd11b755f27c.pdf
    • https://static.usrfiles.com/ugd/d3758e_fa8ec9ed099542b08ed4960683607f55.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_off00006ac6.bin
d35898a058f4f47dd53939b725503fa3399b9c475d12c422f1ea95fff514924c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC6 5420 bytes
font_01_sfnt_off00007d2a.bin
5b4381641217c08527cbb02774e5fcde84704f429e55fd14666d30e4b4db2ebb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2A 10060 bytes
font_02_sfnt_off00009f9f.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9F 4324 bytes

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