Malicious PDF — malware analysis report

Static analysis result for SHA-256 244f1a82c22a5472…

MALICIOUS

PDF

47.8 KB Created: 2020-08-10 02:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52cfbc472458648fddf9165fd6058c69 SHA-1: 7883e7ce30abf5a11dc53f488c15bae0e7eb1000 SHA-256: 244f1a82c22a54722afbbb132e46fe2864674d4f5b76485e902158f9bdf106c2
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'patofisiologi rheumatoid arthritis adalah pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the ultimate destination.

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=patofisiologi+rheumatoid+arthritis+adalah+pdf
    • http://durul.chriscundy.com/uploads/1/3/1/0/131070450/646150.pdf
    • http://files.oztriathlete.com/uploads/1/3/1/3/131383575/5675044.pdf
    • http://rudup.abbottspatchcollection.com/uploads/1/3/1/4/131454065/kezixew-xomapejimo-sukafafokifa.pdf
    • http://files.chrisgriffithdesigns.com/uploads/1/3/1/3/131379099/893051.pdf
    • http://jelukas.jeffandshaina.com/uploads/1/3/1/4/131482975/vogax.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/80206337428.pdf
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/81335407419.pdf
    • https://cdn.shopify.com/s/files/1/0434/8385/7053/files/66231404470.pdf
    • https://cdn.shopify.com/s/files/1/0429/4275/9071/files/xanathar_s_guide_races.pdf
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/sareba.pdf
    • https://cdn.shopify.com/s/files/1/0428/1057/2966/files/32923052783.pdf
    • https://cdn.shopify.com/s/files/1/0437/8954/9729/files/neumann_boundary_conditions.pdf
    • https://cdn.shopify.com/s/files/1/0436/9999/4789/files/93212880162.pdf
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/17083857765.pdf
    • https://cdn.shopify.com/s/files/1/0431/2000/1178/files/35605350776.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5276/files/synonyms_and_antonyms_books_for_competitive_exams.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1793/files/dsm_5_criteria_bipolar_disorder.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_off00006f12.bin
0449897266aaebbe244343e34b7f9eb2ff9da5c22b16e7fe03c8a7124669bba7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F12 5232 bytes
font_01_sfnt_off000080de.bin
9b1ef64e65b20b6979eb04a6eef9eb6951d6f40b8b874b2c32e5e5ac4ab47bed
pdf-font-stream PDF embedded font (sfnt) at offset 0x80DE 10324 bytes
font_02_sfnt_off0000a3f0.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3F0 4324 bytes