Malicious PDF — malware analysis report

Static analysis result for SHA-256 c89ce483cbc70868…

MALICIOUS

PDF

59.6 KB Created: 2020-08-31 01:21:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6065f9cced370e2f0c253ec39ebb9a10 SHA-1: c2111933eaf79ae6236cc1706bd990db1580122a SHA-256: c89ce483cbc7086847e13b3a86c4cc9423680a42215e3693fcc0acab392f598b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=dr+claud+anderson+biography'. This URL is presented within the document body, disguised as a biography, suggesting a phishing or malware lure. The file also exhibits characteristics of a PDF link farm, with numerous external links, further supporting the malicious intent.

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/wix?keyword=dr+claud+anderson+biography
    • https://cdn.shopify.com/s/files/1/0432/6001/8852/files/architecture_paris_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/5849/3600/files/les_oublis_de_saint_paul.pdf
    • https://cdn.shopify.com/s/files/1/0437/6634/9975/files/wanna_one_boomerang_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0437/8407/7473/files/zafigimilatenatofego.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66264102559.pdf
    • https://cdn.shopify.com/s/files/1/0435/5840/4245/files/tetidalemawofixogo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8340/6239/files/calculus_without_derivatives.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/41694204013.pdf
    • https://cdn.shopify.com/s/files/1/0438/0616/3104/files/picsart_premium_apk_cracked.pdf
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/14291024954.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/ahmad_jamal_poinciana.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0353/files/lurasarexa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2703/8371/files/electronic_communication_systems_by_kennedy.pdf
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/vokowivenok.pdf
    • https://cdn.shopify.com/s/files/1/0438/0069/0845/files/minecraft_free_unblocked_mac.pdf
    • https://cdn.shopify.com/s/files/1/0434/4673/0904/files/california_state_university.pdf
    • https://cdn.shopify.com/s/files/1/0440/2357/8789/files/black_and_white_emojis.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_off000091ea.bin
599fac5fac6e43be9978d162f580723c7833fe5c256fd1c34d76839fdb08cb1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x91EA 5376 bytes
font_01_sfnt_off0000a41b.bin
df67a02b3acb8f94b3a26acadf8f0ad1f5709aecce19dc6591a29bb46323a413
pdf-font-stream PDF embedded font (sfnt) at offset 0xA41B 15264 bytes
font_02_sfnt_off0000d33b.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xD33B 4324 bytes