Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc949255789f66a…

MALICIOUS

PDF

42.7 KB Created: 2020-08-23 07:54:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77c0aec805b65a385a64c55c904c1ed5 SHA-1: 1d3861486416e1d22ad09f503c29be0e5dfd4ea0 SHA-256: 3bc949255789f66a15e240fae5181f66950b7d4791634b7a33e92f3049cb0c9b
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.cc/pify?keyword=kartonyono+medot+janji+monata'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, indicating a likely attempt to direct users to malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests a large number of external links, many hosted on Shopify, which could be used for SEO poisoning or to distribute further malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=kartonyono+medot+janji+monata
    • http://files.friendsofthelibrary-chattanooga.com/uploads/1/3/0/7/130776481/2416705.pdf
    • http://files.prigitalsolutions.com/uploads/1/3/1/0/131071076/577897.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/81577410498.pdf
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/how_to_clear_autofill.pdf
    • https://cdn.shopify.com/s/files/1/0437/1388/8405/files/89954987123.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/rolling_bearing_skf.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/61944633376.pdf
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/51822443931.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/abirami_anthathi_mp4_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/8747/9455/files/xarameraliwetuturukar.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4107173541.pdf
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/kajaxarudivumesefeni.pdf
    • https://cdn.shopify.com/s/files/1/0438/9748/7512/files/bharti_axa_general_insurance_online_policy.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_off0000539c.bin
c35752cb3a3ad408403c611a3f82a7a6292a51bf326cd80ce6c68d60b9354837
pdf-font-stream PDF embedded font (sfnt) at offset 0x539C 4908 bytes
font_01_sfnt_off00006446.bin
daa0b21780407be6c18be92d503f3e3d6478e3be34aa7408daa589e4cc9a64dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6446 10268 bytes
font_02_sfnt_off000087b9.bin
eba4684676e36b02b4b62b93ceaacba817a7a00dfb5e59476827ea8e0a606e4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x87B9 16096 bytes