Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd097f01b929ecc6…

MALICIOUS

PDF

43.9 KB Created: 2020-08-16 20:13:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e72d959c82c2a1c084306993158f062 SHA-1: 761184e68124c1ab99c9ba087da58a89a9bd6ae6 SHA-256: dd097f01b929ecc6ef2e0c25153e2ab4f00410a36d0cc0a290c16888eb549e55
152 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text fragments that appear to be a lure related to 'crafting guide osrs p2p', and also includes the malicious URL. The presence of a link farm heuristic further suggests malicious intent to distribute content or redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=1-+99+crafting+guide+osrs+p2p
    • http://files.cbpencil.com/uploads/1/3/1/4/131438464/xobezuzozet_rodilesiludu.pdf
    • http://files.prli.us/uploads/1/3/0/7/130738764/geworimod.pdf
    • http://files.miriad-tech.com/uploads/1/3/1/8/131856646/nebumonagas.pdf
    • http://files.edbanghart.com/uploads/1/3/1/3/131379874/lasegimawuvato_rogafikosigiluz_gijagunanafipu_zebuxupixaga.pdf
    • https://cdn.shopify.c
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/manual_de_microbiologia_veterinaria_vadillo_descargar_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0430/9303/3111/files/ed_99_98_ec_9c_a8.pdf
    • https://cdn.shopify.com/s/files/1/0431/8288/2980/files/birekuduvupetusimop.pdf
    • https://cdn.shopify.com/s/files/1/0435/4156/1503/files/sanerexutez.pdf
    • https://cdn.shopify.com/s/files/1/0445/1729/4239/files/womerose.pdf
    • https://cdn.shopify.com/s/files/1/0430/9218/1153/files/gonodiwubibijebiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/1601/9355/files/vosomaxanezemiboxajiwij.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3077/files/leer_in_preterite.pdf
    • https://cdn.shopify.com/s/files/1/0428/7073/5014/files/cricut_handbooks.pdf
    • https://cdn.shopify.com/s/files/1/0443/6351/4012/files/lagos_state_2020_budget.pdf
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/duwot.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/64523831996.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d62.bin
f86a3adacbcc1f8f2ec7cdb416869f38eba0f89091dfb3e2e7ce72e0fbd135f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D62 5568 bytes
font_01_sfnt_off00008064.bin
d5ef858e985f566b20a69b405b3a589c72b41977b65ce68752dfcde8508b978b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8064 9920 bytes