Malicious PDF — malware analysis report

Static analysis result for SHA-256 e95e91a096ee9481…

MALICIOUS

PDF

78.1 KB Created: 2020-08-19 10:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76cf7c62452569f76ace35467c889477 SHA-1: 162fc913a6521e97b79cc4b53bf004c5197ff4af SHA-256: e95e91a096ee9481666510684516adecba21110f75da1e31055127ddf44ce8d0
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a tender invitation cover letter template. This heuristic, combined with the presence of numerous other links pointing to Shopify domains (likely for SEO manipulation), strongly suggests a phishing or scam attempt. No scripts were extracted, but the primary attack vector is the malicious URL embedded within the document.

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.com/pify?keyword=invitation+to+tender+cover+letter+template
    • http://wezufale.voicesacrossborders.com/uploads/1/3/1/4/131438216/sosuremipagakat.pdf
    • http://files.arcanagardens.com/uploads/1/3/1/4/131407734/e2f3a87.pdf
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/rubikagamap.pdf
    • https://cdn.shopify.com/s/files/1/0434/3581/9173/files/85521024204.pdf
    • https://cdn.shopify.com/s/files/1/0428/3056/1436/files/gutejanefumusomidolazesem.pdf
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/manowivufodesubezarigifiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8962/5250/files/33252492213.pdf
    • https://cdn.shopify.com/s/files/1/0432/8253/0472/files/velakalomolopefeluwi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8378/4601/files/2d_metal_carbides_and_nitrides_mxenes_for_energy_storage.pdf
    • https://cdn.shopify.com/s/files/1/0430/0675/4970/files/ergonomics_standards.pdf
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/dudeberejamome.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4097/files/ascending_order_and_descending_order_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/12649528493.pdf
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/android_studio_online_help.pdf
    • https://cdn.shopify.com/s/files/1/0440/6666/8694/files/35636995335.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d719.bin
a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
pdf-font-stream PDF embedded font (sfnt) at offset 0xD719 2828 bytes
font_01_sfnt_off0000e113.bin
845226312a0b53d2f7d9938e2151cd88afa5ec18915d5cec3ca77760902218b9
pdf-font-stream PDF embedded font (sfnt) at offset 0xE113 4828 bytes
font_02_sfnt_off0000f157.bin
19a9415f78f5cf74227f00ba8b14073c4ab59e21a157d75334deba82e372c77c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF157 13372 bytes
font_03_sfnt_off00011c33.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x11C33 4324 bytes