Malicious PDF — malware analysis report

Static analysis result for SHA-256 f63c387ae9bb7cdb…

MALICIOUS

PDF

46.5 KB Created: 2020-08-28 06:12:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69238ec73b67cdf3b847d3bf51db2b16 SHA-1: 6c0292b84538f804f75aad179ceb5b9868b83651 SHA-256: f63c387ae9bb7cdb4f2da92394bb385bbddf8ba8ec2dae1c8a8f2f8ad3b41bf6
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector. The primary link, 'https://ttraff.cc/pify?keyword=core+java+mini+projects+with+source+code+pdf', is designed to lure users into clicking by appearing to offer valuable content. This redirector is known to lead to malicious infrastructure, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to the same URLs found in the heuristics, reinforcing 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.cc/pify?keyword=core+java+mini+projects+with+source+code+pdf
    • http://files.rivermenrodandgunclub.com/uploads/1/3/2/3/132302973/nomegariwutok-wibiwu-visinatixubuj-sojimuta.pdf
    • http://zagate.bentleygrove.com/uploads/1/3/1/4/131407181/5a6d5ebcd8d.pdf
    • http://sagap.swctoa.com/uploads/1/3/0/9/130968984/lijun_minijugizif_jejotakexagu_kupaz.pdf
    • http://files.saintalphonsusschool.org/uploads/1/3/1/8/131857071/b41fba5.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/53228354816.pdf
    • https://cdn.shopify.com/s/files/1/0430/6776/8981/files/prime_numbers_java.pdf
    • https://cdn.shopify.com/s/files/1/0428/1643/8438/files/95778240061.pdf
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/cg_panthi_songs_dj_mix_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0807/files/34469207056.pdf
    • https://cdn.shopify.com/s/files/1/0433/6399/1717/files/50576669211.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/51189386949.pdf
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/fivexodirutaxolafazo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4023/4911/files/45199931178.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/58885943605.pdf
    • https://cdn.shopify.com/s/files/1/0462/4380/7392/files/bofumutufulutapagoxepudil.pdf
    • https://cdn.shopify.com/s/files/1/0437/8987/7397/files/rokuvoxeforovusupuwerabut.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_off0000690c.bin
b338af799484c2124edff1b18b7c1d2e0e03005d914f1e36068c43323837ed77
pdf-font-stream PDF embedded font (sfnt) at offset 0x690C 5496 bytes
font_01_sfnt_off00007ba4.bin
d99fb61748921dab800ccf1bcb6e3d23e9220d6549786258f0081a72177e9643
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA4 10192 bytes
font_02_sfnt_off00009e79.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E79 4324 bytes