Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c962a240f8ca2d9…

MALICIOUS

PDF

49.6 KB Created: 2020-09-01 01:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a598030d99a1514d586100b73d52971a SHA-1: 16e6b5daea6f54093acc7434c27b490b4408e7c9 SHA-256: 4c962a240f8ca2d9716ee88d2d2b48df09233fe930bdf16132b23f41889d5cdb
128 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body text and embedded URLs suggest a lure for downloading an "auto clicker pro apk". The heuristic PDF_MALICIOUS_REDIRECTOR_LINK strongly indicates that the primary purpose is to redirect the user to malicious infrastructure, likely for malware delivery. No scripts were extracted from this sample.

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.com/pify?keyword=auto+clicker+pro+apk
    • https://static.usrfiles.com/ugd/b8c837_d3b7170ea93f486198b35239bbecb89d.pdf
    • https://static.usrfiles.com/ugd/429b25_1f7a6f9fd42c4358943eced73dd79d2b.pdf
    • https://static.usrfiles.com/ugd/c8d394_85365a9a8646430ca5bce7f60640842b.pdf
    • https://cdn.shopify.com/s/files/1/0429/1257/9747/files/xavozasidufuvasuz.pdf
    • https://cdn.shopify.com/s/files/1/0436/7430/4662/files/danodovujobibuxejosuvadi.pdf
    • https://cdn.shopify.com/s/files/1/0459/6491/8951/files/kanokekesamozanuwabi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/terijojesipubugelaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2207/3506/files/ruvabipidadekoveva.pdf
    • https://static.usrfiles.com/ugd/83b1b3_1920b118b7e1470f8d2d2216d4e777fa.pdf
    • https://static.usrfiles.com/ugd/b6edda_fabb8b9764fa496d94b509b5df87c21d.pdf
    • https://static.usrfiles.com/ugd/5e81b9_9a86bb143465483c8d021d028e19228d.pdf
    • https://static.usrfiles.com/ugd/d17951_11adb9336f724e49b2b01195c5a74575.pdf
    • https://static.usrfiles.com/ugd/b80405_175b790f66214649a57ea396751b2fcd.pdf
    • https://cdn.shopify.com/s/files/1/0434/3706/4344/files/metodo_lectoescritura_global.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/sivawez.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005acb.bin
24402bea9664ed2943d88c5ced85ce09173143bc9a453f99464512811c29ca9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACB 4580 bytes
font_01_sfnt_off00006a68.bin
49d251c79febb6bd87a0962b2993503f6edd8cd09b99a551235687883b8f225e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A68 14252 bytes
font_02_sfnt_off0000969b.bin
be8d7b0680d17e7641ec4de9be36bac9abfff86185680e0ab8face07e75b9df1
pdf-font-stream PDF embedded font (sfnt) at offset 0x969B 16096 bytes
font_03_sfnt_off0000ab68.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB68 4324 bytes