Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5e6f35c8a0a29f2…

MALICIOUS

PDF

43.8 KB Created: 2020-08-17 10:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03cf0e1d549aaadfdbeb69cc44b984a7 SHA-1: 64d9f48344c7080b399d6ead8484e553960e4edd SHA-256: a5e6f35c8a0a29f276c13cf7bad116b4252c58ab6f86cce42bacf9145272dfa2
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external links, characteristic of SEO spam or phishing lures. The document body suggests a lure related to 'Apple music' and the heuristics indicate it's designed to harvest MFA codes or credentials. The primary malicious URL is ttraff.ru, which redirects to a page with a keyword related to Apple Music. The document also contains numerous links to Shopify-hosted PDFs, likely part of a link farm to improve search engine ranking for malicious content.

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.ru/pify?keyword=apple+music+won%2527+t++to+library
    • http://bogul.dandelionsandlove.com/uploads/1/3/0/8/130874254/7cbdaf7bb98.pdf
    • http://files.ezrollpocketwraps.com/uploads/1/3/1/4/131407547/fuzuvefusulafi-nubofudeze.pdf
    • http://nobilimew.algallodoro.com/uploads/1/3/1/0/131070036/715803.pdf
    • http://files.tomsolaribuilder.com/uploads/1/3/0/7/130739895/kutovomefarug.pdf
    • http://wuparuwi.mikemarksarts.com/uploads/1/3/1/1/131164250/5759071.pdf
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/raneposolovizavizinu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/suvidodixusoni.pdf
    • https://cdn.shopify.com/s/files/1/0437/2758/5430/files/22114952491.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/31380827227.pdf
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/74208075085.pdf
    • https://cdn.shopify.com/s/files/1/0428/6359/1590/files/du_battery_saver_pro_app_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/0490/2045/files/42690347980.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2250/files/lodegusikixe.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6488/files/61243566852.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_off00005f66.bin
d1984acc886fcaa26d7ac9f6250d232cd2a8fb224dc50224d2ac113dfc676561
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F66 5320 bytes
font_01_sfnt_off00007176.bin
d895a0ea3d61e66208a1098b43082876eb6580f21ecbb804eddb0548218eddca
pdf-font-stream PDF embedded font (sfnt) at offset 0x7176 10224 bytes
font_02_sfnt_off00009438.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9438 4324 bytes