Malicious PDF — malware analysis report

Static analysis result for SHA-256 1150e30527b7e682…

MALICIOUS

PDF

78.3 KB Created: 2020-09-11 00:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9136851499cf968e2ee6f49ca8bba5f1 SHA-1: 8ea0b8a189a3a58b266e4546ef0d01b5994dc8f8 SHA-256: 1150e30527b7e68268a94453e477657e6903e5d6656c77096377754207f61859
194 Risk Score

Malware Insights

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

The PDF contains a lure to copy and paste content into a command-line interface, indicating an attempt to trick the user into executing malicious commands. It also hosts a large number of links to other PDFs, likely for SEO manipulation or to distribute further malicious content. The primary malicious URL identified is a redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.link/pify?keyword=alcatel+lucent+phone+manual+ip+touch+4018
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/7039/7352/files/my_body_parts_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/7732/7265/files/football_manager_2015_online_crack.pdf
    • https://cdn.shopify.com/s/files/1/0431/2013/2247/files/susinononefa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2496/6044/files/tunnel_rush_unblocked_games_76.pdf
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/rotetirabefeguwodewoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/1234/1409/files/29999768801.pdf
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/3402840466.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/91969996891.pdf
    • https://cdn.shopify.com/s/files/1/0465/2515/3430/files/70612189497.pdf
    • https://cdn.shopify.com/s/files/1/0434/9070/5574/files/49059313328.pdf
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/garden_answer_2019_videos.pdf
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/jitbit_macro_recorder.pdf
    • https://cdn.shopify.com/s/files/1/0431/4690/3701/files/konkani_catholic_bible.pdf
    • https://cdn.shopify.com/s/files/1/0433/3584/3994/files/aha_bls_2018.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/sakiximebixifusaluxixu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/para_que_sirve_el_algoritmo_informatica.pdf
    • https://cdn.shopify.com/s/files/1/0434/6262/3394/files/28701351995.pdf
    • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/27095938509.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb07.bin
89f8ea16f43931d203c49ca801b8bec57ae0469fc5c9ae49533f90f75b95e503
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB07 5364 bytes
font_01_sfnt_off0000fd29.bin
34b2f3982d86accf7bf068d29f147846350e6046714fde1c066432ad521315cb
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD29 2052 bytes
font_02_sfnt_off0001060c.bin
ab158a12ba42afb8df45b13c9e7968821fbdfef1cafcfe6563fd256ba06bbd62
pdf-font-stream PDF embedded font (sfnt) at offset 0x1060C 11268 bytes