Malicious PDF — malware analysis report

Static analysis result for SHA-256 a63c0f2d7cc738d3…

MALICIOUS

PDF

42.3 KB Created: 2020-09-16 17:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85e2862977edfeb9c788de1de53baef9 SHA-1: 21804610828ff85b5b5b5cfbb5a29e861ae8f4ef SHA-256: a63c0f2d7cc738d307a72414d0bc998be81fc55ad269e2ccfa2d7e63e35af973
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link and a link farm, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'idm download manager apk crack' and a URL that appears to be part of a link farm. The presence of a download button lure further supports the malicious intent.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=idm+download+manager+apk+crack
    • http://sidodi.lostinjewellerymagazine.com/uploads/1/3/0/7/130776007/ad8dba72043f.pdf
    • http://files.westdesmoineslawncare.com/uploads/1/3/1/3/131381464/ziduka_vokojakupox_xotir.pdf
    • http://files.valledaostareview.com/uploads/1/3/1/3/131383613/xasitusibujosed.pdf
    • http://dagaru.mountainlaureltennisclub.com/uploads/1/3/0/7/130740055/7109124.pdf
    • https://457edc7d-f046-4c70-8413-2899c902b002.filesusr.com/ugd/e643da_bb684485ef18439289729c614e9099cb.pdf?index=true
    • https://e9d123b8-89bf-4db8-b751-b84c7a326051.filesusr.com/ugd/031dda_1d6ef021e792427181c75e4899a20144.pdf?index=true
    • https://48aa0e67-875d-4a9f-adb7-5e5985182135.filesusr.com/ugd/724fb5_b7e1c50388f94e94a2bb199f5b1ac604.pdf?index=true
    • https://5db86306-84d0-4af0-a5ed-a425c741f86b.filesusr.com/ugd/3e5db3_1932b30677624f5db0dc6bc08999a3d5.pdf?index=true
    • https://67fd16ca-e5c5-4617-a55b-d85642b1bf79.filesusr.com/ugd/33a2e4_d17148dd6d2947f1b492fadde43f576a.pdf?index=true
    • https://0f18c24c-54b9-4191-91c8-3dfd5cd0cd7b.filesusr.com/ugd/c722c2_31da60eaf8274c9f85c3c31b8f2f0e4d.pdf?index=true
    • https://466533c8-63c3-4489-b16c-138158bf27a3.filesusr.com/ugd/3bcfef_7c287e13be3e4cc5b71fed4123d02564.pdf?index=true
    • https://98e6a617-be7b-4871-aa30-b64b413a3a63.filesusr.com/ugd/529dbf_5d18de979ab042f78ab638480315181c.pdf?index=true
    • https://ce989753-a5b0-4ed7-a2e3-165f8491e4f0.filesusr.com/ugd/e50c99_429efe9b232047018d6eb52f328e8580.pdf?index=true
    • https://f5a24858-d671-475b-9689-382cf51720bc.filesusr.com/ugd/69695d_c58c89fc6f944a3a98eaeae93ff11eed.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/5353/1807/files/bed_bath_and_table_super_king_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0438/2621/7120/files/vuriku.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_off0000668b.bin
0bd9b868b9a47740d28dd4bcc7dcd6a8a446fd08b34fa2ef7ffaf3d5a4ea5072		 pdf-font-stream PDF embedded font (sfnt) at offset 0x668B 5308 bytes
font_01_sfnt_off00007898.bin
a076d43e394a86bf6b163b10cb768510e968315b80ae49c3318e296af08fd390		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7898 10464 bytes

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