Malicious PDF — malware analysis report

Static analysis result for SHA-256 838dc14127877c62…

MALICIOUS

PDF

98.6 KB Created: 2022-06-10 05:33:02 +02:00 Authoring application: daratal (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: f8d3119007e8942ef6011f7ce31032e0 SHA-1: 6b55bd73942d5b1fa81a75b55b4f39662450b367 SHA-256: 838dc14127877c62dc7ee7efe3cc8b838378f663287db6b4feb49ef2ab3fae73
104 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which appear to be SEO-optimized for software cracks or potentially malicious downloads. The PDF_LAUNCH heuristic indicates an attempt to trigger an external action, likely to redirect the user to one of these malicious URLs. The presence of a link farm suggests a broad phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier clean score 0.0046

Heuristics 4

  • 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.
  • Launch action high PDF_LAUNCH
    PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://evacdir.com/fruitful.RGFyayBTb3VscyAyIFNhdmUgRWRpdG9yRGF?/highlight/picatinny/cookouts/ZG93bmxvYWR8RzFVTm5weWVIeDhNVFkxTkRjNE1EZzNPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.suitless
    • https://ajkersebok.com/damodarastakam-in-malayalam-pdf-download/
    • http://homeprosinsulation.com/wp-content/uploads/2022/06/Mercedes_EWAnet_V22509_EPC_WIS_Last_Updates_Full_Version.pdf
    • http://igsarchive.org/article/a-pdf-page-master-3-6-4-serial-key-rar/
    • https://community.thecityhubproject.com/upload/files/2022/06/aT7WjSO39zZv7tCsNQH8_10_e8809563fbd490b82dd28672bbf39411_file.pdf
    • http://hshapparel.com/wp-content/uploads/2022/06/Realtek_ALC662_Realtek_AMD7850_High_Definition_Audio_Bios_DriverINI.pdf
    • http://versiis.com/?p=10915
    • http://feelingshy.com/launch-x431-software-crack-tutorial/
    • http://deepcarepm.com/wp-content/uploads/2022/06/X_Force_Keygen_BETTER_3ds_Max_2010_64_Bitsrar.pdf
    • https://majestykart.com/wp-content/uploads/2022/06/waniokt.pdf
    • https://cuteteddybearpuppies.com/wp-content/uploads/2022/06/vantagepoint_trading_software_free_download.pdf
    • https://lannuairelobbynoir.com/wp-content/uploads/2022/06/Tree_Planting_Simulator_HackScript_Infinite_Money_Roblox_EXCLUSIVE.pdf
    • https://www.foodaly.it/wp-content/uploads/2022/06/Adobe_Type_Manager_For_Win_7_64.pdf
    • https://vegannebrighton.com/wp-content/uploads/2022/06/DOWNLOAD_MODELSIM_65_FULL_CRACK_INTERNET.pdf
    • http://sanatkedisi.com/sol3/upload/files/2022/06/U537pNMYMKwzNl9uQYmX_10_b48504863f64aafa9162f6fe8b3acacd_file.pdf
    • https://l1.intimlobnja.ru/wp-content/uploads/2022/06/rl_kotpal_invertebrate_zoology_pdf_25.pdf
    • https://aqary.co/wp-content/uploads/2022/06/Pnozmulti_Configurator_License_Crack_Software_EXCLUSIVE.pdf
    • https://www.linkspreed.com/upload/files/2022/06/7kkeOwi2qQ6kGL6KArLg_10_794d3a1d02729c5de0eafa6f0c0b72e3_file.pdf
    • https://samak1.com/wp-content/uploads/2022/06/cheat_happens_unlimited_account_hack_download.pdf
    • https://herbariovaa.org/checklists/checklist.php?clid=29231
    • https://spacefather.com/andfriends/upload/files/2022/06/8QXgtOV8DqyBMzNU4DPE_10_73596d170e42fb5059bf3e7db78cc4ab_file.pdf
    • http://www.tcpdf.org
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00001af3.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1AF3 120140 bytes
stream_007_off00010a80.bin
df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10A80 119072 bytes

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