Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7e68b62692a78f…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 04:17:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ef3278fc7ad3a3bc797fb88cdde266b SHA-1: a10e9db746b85586f46f84c3a322460bcb97f8b2 SHA-256: 0d7e68b62692a78f36fdac4ab22967243bfdc0b93098d64588e35170d676498f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that lead to a redirector service, which is a common tactic for phishing and malware distribution. The document body, though obfuscated, contains text suggesting it is a BMW owners manual, likely a lure. The presence of numerous external PDF links further indicates a link farm, often used to obscure malicious destinations.

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.cc/pify?keyword=bmw+owners+manual
    • http://files.theyarnandi.com/uploads/1/3/0/8/130814258/pubazadutavunediwu.pdf
    • http://files.heatherwittmezzo.com/uploads/1/3/1/3/131398125/xazobexu_tuxuje.pdf
    • http://files.zdubboy.com/uploads/1/3/1/4/131483184/9ada44.pdf
    • http://files.aajamn.com/uploads/1/3/0/7/130740571/leseronezis_wirogaramemi_dofufira.pdf
    • http://files.kelsey-rice.com/uploads/1/3/1/1/131164097/pomukuresalez-fudipukisitowit-buvevol-tigipefej.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0436/9101/6347/files/dusizirilaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/4521/5656/files/26929686381.pdf
    • https://cdn.shopify.com/s/files/1/0437/6576/0151/files/jopitilutosotu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/95220646350.pdf
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/likotumefuxukasexamaxaxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5793/8581/files/lopegizodibadadunenowamim.pdf
    • https://cdn.shopify.com/s/files/1/0437/2915/8295/files/piwewo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/porunimuluvatedepajudib.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/46376790135.pdf
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/45187781005.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2381/files/6443024595.pdf
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/74166196798.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_off00006106.bin
1e4a6715d905403589278d7224e6abc0183e66c6879fdba187633e3847bcdf25
pdf-font-stream PDF embedded font (sfnt) at offset 0x6106 4724 bytes
font_01_sfnt_off000070f7.bin
f98475096c891147be7e34a9e8f1cd0f2ac5baf910f8ecbc846129e6446a5629
pdf-font-stream PDF embedded font (sfnt) at offset 0x70F7 10560 bytes
font_02_sfnt_off0000952d.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x952D 4324 bytes