Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a262923d0a180c…

MALICIOUS

PDF

57.8 KB Created: 2020-08-11 22:03:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e6b48a646d1c9566f2d0c0fe9f798bb SHA-1: a74779aba1db31f2350bc1097d4ac6b92b11b775 SHA-256: a3a262923d0a180cb34b1a8e8fd0264ae657e769eea38cf8bb29a62180fa56ef
128 Risk Score

Malware Insights

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

The PDF contains a lure related to a 'term loan agreement' and embeds numerous external links, with at least one identified as a malicious redirector. The primary malicious URL, https://ttraff.cc/pify?keyword=term+loan+agreement+pdf, is likely used to redirect the user to a malicious site. The presence of a link farm suggests an attempt to game search engine results for malicious purposes.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.cc/pify?keyword=term+loan+agreement+pdf
    • http://files.bevilacquaguitars.com/uploads/1/3/0/8/130813054/6ce3593cb6ef653.pdf
    • http://files.drranvirpahwa.com/uploads/1/3/2/3/132302859/26b92bd02922.pdf
    • http://laberig.angoloitek.com/uploads/1/3/1/0/131070993/68e5163d89cdd.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/jawotosefigisupisadiwanun.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5755/files/gufatenukugugodetama.pdf
    • https://cdn.shopify.com/s/files/1/0437/6310/5949/files/tolet.pdf
    • https://cdn.shopify.com/s/files/1/0437/1628/0475/files/mufebotobokasemeji.pdf
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/al_quran_with_bangla_translation.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jegatakufiritejat.pdf
    • https://cdn.shopify.com/s/files/1/0435/0928/5024/files/30570233362.pdf
    • https://cdn.shopify.com/s/files/1/0435/7724/5859/files/matovofaresufisovol.pdf
    • https://cdn.shopify.com/s/files/1/0428/5136/9127/files/maxidetatekeguwabo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2644/7525/files/search_inside_yourself_ting_vit.pdf
    • https://cdn.shopify.com/s/files/1/0432/2656/2722/files/50402040536.pdf
    • https://cdn.shopify.com/s/files/1/0434/4443/7142/files/aminocaproic_acid_package_insert.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_off00009883.bin
b1cb47dc7b55d3c85628c9111085200159b580411772198647533057d805e1fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x9883 4872 bytes
font_01_sfnt_off0000a8f5.bin
d1e57f6f932b8528daa1a097e85391becf7e23192773a610177e55b21147a564
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8F5 10312 bytes
font_02_sfnt_off0000cbe2.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE2 4324 bytes