Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1cee8b29db0ba5a…

MALICIOUS

PDF

57.9 KB Created: 2020-08-21 02:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe00229ead7d437d6c5f6f881a95bbc1 SHA-1: d130de613e96487731b3313f8b92565ee55f7dfe SHA-256: f1cee8b29db0ba5a6308ee24c12c3d2a0996eb953db6eaac5e3a839cbda42b10
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=p5+takemi+confidant+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing its role as a lure. No scripts were extracted, but the presence of a malicious redirector is sufficient to indicate a phishing or malware delivery attempt.

Heuristics 3

  • 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.
  • 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=p5+takemi+confidant+guide
    • http://files.nathanrgeorge.com/uploads/1/3/1/4/131409309/vovanurowiwe_sefevel_wubogaman_tokuzanox.pdf
    • http://pegadam.marbella-lab.com/uploads/1/3/0/9/130969754/ginimewa.pdf
    • http://jopodew.dulcineaquartet.com/uploads/1/3/1/4/131408071/31561b339bcad.pdf
    • http://files.mysearchlive.com/uploads/1/3/1/8/131857562/920347963ccddf.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/boolean_example_in_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2661/files/takowiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/sijulebojude.pdf
    • https://cdn.shopify.com/s/files/1/0431/0122/5114/files/surgical_treatment_of_supratentorial_cavernous_malformations.pdf
    • https://cdn.shopify.com/s/files/1/0454/9804/0472/files/95595249377.pdf
    • https://cdn.shopify.com/s/files/1/0437/2440/6935/files/inter_1st_year_english_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/circle_of_life_choir.pdf
    • https://cdn.shopify.com/s/files/1/0431/3094/5693/files/zidizediz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9614/6074/files/gajevo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8578/3447/files/97230311949.pdf
    • https://cdn.shopify.com/s/files/1/0431/7085/7124/files/24049552428.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_off000089cd.bin
8037f911f2c7d127a915fc241ebc119034d5b98c399e5696ecbfbd1b39fa3ec0
pdf-font-stream PDF embedded font (sfnt) at offset 0x89CD 5224 bytes
font_01_sfnt_off00009b85.bin
caf4b88655adac0f755fe81a83a2d263464369fa58a4c5a2d655fda7ac1cb0a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B85 12876 bytes
font_02_sfnt_off0000c4c3.bin
840aca7af89d6665d446bd68a022ef871a8c4a07170005e3094ac854b8115bb7
pdf-font-stream PDF embedded font (sfnt) at offset 0xC4C3 16240 bytes