Malicious PDF — malware analysis report

Static analysis result for SHA-256 34b8f5ea81e2c94c…

MALICIOUS

PDF

47.4 KB Created: 2020-08-02 07:58:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7653132bca517402c9c6c04eaa6a60fc SHA-1: a1c9f6ddd373cdeb3875d600f932d9276ea895bc SHA-256: 34b8f5ea81e2c94caccc6cac99c13cf0de437af4a184e9323629bb760638ca6c
160 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, specifically mentioning a "Verizon points auction" and embedding a link to a redirector. The document's structure and embedded links suggest it is designed to trick users into visiting malicious sites. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=verizon+points+auction
    • http://files.smart-homesolutionsllc.com/uploads/1/3/2/7/132712120/9570458.pdf
    • http://files.antidemalta.org/uploads/1/3/0/8/130873838/2d2581d.pdf
    • http://files.herefordshirefencingclub.co.uk/uploads/1/3/1/6/131637211/3576958.pdf
    • http://files.littlecharliesbakeshop.com/uploads/1/3/0/8/130814935/6067749.pdf
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/48749038601.pdf
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/rijud.pdf
    • https://cdn.shopify.com/s/files/1/0427/9648/2727/files/haynes_the_bike_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/ropedigalilupodorurevejed.pdf
    • https://cdn.shopify.com/s/files/1/0428/1014/6983/files/94093775970.pdf
    • https://cdn.shopify.com/s/files/1/0436/7984/2457/files/dejofapolesabixolifasemal.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3358/files/56327064974.pdf
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/40415274911.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/jasmine_s_bolivar_mo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/maruvitumiselaj.pdf
    • https://cdn.shopify.com/s/files/1/0438/7130/5896/files/jatuwanunubek.pdf
    • https://cdn.shopify.com/s/files/1/0434/5187/5494/files/75634536016.pdf
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/duzelexage.pdf
    • https://cdn.shopify.com/s/files/1/0428/9167/3763/files/79833118057.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_off00006df8.bin
76f85dda10b83addb54e8b6b6e0ef9c177bdf0ac1009113d1f0cf20e7897cdd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF8 4792 bytes
font_01_sfnt_off00007e52.bin
89f9ea66d9b189cdcb2a369c4f4db19e5affe9e25e30d81c01e20e9df9107fd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E52 10572 bytes
font_02_sfnt_off0000a28c.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA28C 4324 bytes

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