Malicious PDF — malware analysis report

Static analysis result for SHA-256 3108ea8083e282f0…

MALICIOUS

PDF

52.3 KB Created: 2020-08-10 02:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 522c6bb83f796d3a6fb9a77f3c4ec7d1 SHA-1: 41d7b20b42d01c3aaa61d8c27f1aa66c04774760 SHA-256: 3108ea8083e282f0d223901a822bd9ec5a233c5461f31f93b7d9d333f2fb82d9
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a malicious redirector. The document body and heuristics suggest a lure for credential harvesting, possibly by posing as an application form. The presence of a link to a redirector (ttraff.cc) indicates an attempt to lead the user to a phishing site. The document also contains a large number of links, identified as a PDF link farm, likely for SEO poisoning to increase visibility.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=saqa+application+form+pdf+download
    • http://files.dimitraxidous.com/uploads/1/3/1/6/131606984/tatefu.pdf
    • http://nonojib.fjordsar.com/uploads/1/3/0/7/130776485/rakidefuguges-vizilodabizu-bosaboradimoda.pdf
    • http://files.councillpsychiatric.com/uploads/1/3/0/7/130739140/kaguxa_babar.pdf
    • http://files.iamscientiste.com/uploads/1/3/1/4/131452815/026a02.pdf
    • http://files.downtowntorontodoctors.com/uploads/1/3/0/9/130969551/dopivalezoxibuxu.pdf
    • https://cdn.shopify.com/s/files/1/0436/2692/2146/files/bexix.pdf
    • https://cdn.shopify.com/s/files/1/0440/1859/8053/files/91029743416.pdf
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/dixetaxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/tobezatom.pdf
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/95032899980.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/despicable_me_script.pdf
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/75134748475.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8852/files/gowope.pdf
    • https://cdn.shopify.com/s/files/1/0435/2576/7327/files/lobiribazulamudeguz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/where_does_league_save_replays.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97253363073.pdf
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/86983222432.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_off00007f64.bin
34dd6e3403df9d19a2dc955da4c17a78ff7cce0e2ab232838687eb8fce211299
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F64 5112 bytes
font_01_sfnt_off000090a9.bin
f1ecb949895dbf7c1d8ce9cb119bcfe56341659af565623a84e158a3491ce850
pdf-font-stream PDF embedded font (sfnt) at offset 0x90A9 11032 bytes
font_02_sfnt_off0000b615.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xB615 4324 bytes