Malicious PDF — malware analysis report

Static analysis result for SHA-256 258a9c5708e6f875…

MALICIOUS

PDF

45.1 KB Created: 2020-09-16 15:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d6a74202d356a31c846032814ca96f8 SHA-1: cc68089aaa164b478f8c6f744aec2ae28d69a39b SHA-256: 258a9c5708e6f875576e0022bd60accbb43e66c8590813a9926d3821a0967da4
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=pills+and+potions+lyrics+tiktok'. The document body, though heavily obfuscated, also contains this URL and numerous other embedded URLs, many of which are hosted on suspicious domains. This suggests the primary goal is to redirect the user to malicious content, likely for phishing or scamming purposes.

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.link/wix?keyword=pills+and+potions+lyrics+tiktok
    • http://vakakekuz.newjerseyparaunityexpo.com/uploads/1/3/1/6/131636648/buxawuxaz.pdf
    • http://donedifem.promalvacations.com/uploads/1/3/1/3/131379230/8c3308318.pdf
    • http://files.tagis.pt/uploads/1/3/1/1/131164122/4731765.pdf
    • http://files.minhquando.com/uploads/1/3/1/6/131606789/7610209.pdf
    • http://puwawa.otwvintage.com/uploads/1/3/1/3/131398379/wewexofamijag.pdf
    • http://ridabam.diannaedwardsandwriting.com/uploads/1/3/1/3/131383297/8066511.pdf
    • http://kofaxaw.lovelashed.com/uploads/1/3/0/7/130776485/9092770.pdf
    • https://b80bb97e-9574-4229-be84-09927f6f6ab0.filesusr.com/ugd/49f5ef_5295b77956904776bb38c6cccd874c64.pdf?index=true
    • https://0b0bab25-b303-4788-aa63-13a4ba6d6080.filesusr.com/ugd/decf6f_afb63b6fe2d34fff941898baeba72d48.pdf?index=true
    • https://3c528f51-d81b-433d-a7d6-194a9486a059.filesusr.com/ugd/bba345_87915bce7ec54f08bae149f5d0a35336.pdf?index=true
    • https://71aee221-614e-47ac-b5e8-c86d63ca5995.filesusr.com/ugd/e4f6f0_13ea17d487244ddc9ebd544173f4cf33.pdf?index=true
    • https://e00d25a7-354c-453f-8161-5d564648afd1.filesusr.com/ugd/cf5aa9_fec3aa6b765849999461243dadc10c8b.pdf?index=true
    • https://f0b1a799-9599-4a4d-8239-f5856cdd7c6f.filesusr.com/ugd/c450b2_9ba20297fa244b21ac0e7abdb86096bb.pdf?index=true
    • https://7045ca36-dfb2-46de-a1e9-6749267e90de.filesusr.com/ugd/45fd81_8ab82204b2424d4882c4e77965c8eb50.pdf?index=true
    • 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_off00007106.bin
aa440fdfcc85329b19134dd619c7168b0a4e4a331b8270adf1195234e7215273		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7106 5232 bytes
font_01_sfnt_off000082f4.bin
fe2e9a76786f4e3c34b45e0b28e610dbd352717cc1be1dc8e0e4f82cd748f012		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82F4 10840 bytes

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