MALICIOUS — bcdbf05d9ce37ad3802f34b13366e41a212e2bd26dffc1151ab82a4a4dee0b4c

MALICIOUS — bcdbf05d9ce37ad3802f34b13366e41a212e2bd26dffc1151ab82a4a4dee0b4c is a office-ooxml sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the Docusign112101 family. 5 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

SHA-256: bcdbf05d9ce37ad3802f34b13366e41a212e2bd26dffc1151ab82a4a4dee0b4c
SHA-1: abeac64cb01fb0f06bb4dfc13138f287bd5e40e4
MD5: 63d0a2c331cdf113570ab352a144b7e6
ssdeep: 1536:cjXB5SOqcuTUdehXyvl0f4CZpUcab2GFVbgPuDF7exsylBviKsUOT+5gJ:cOc6EehCfCZpUHKGXbBKsiiD
TLSH: T1483BF0280BEF6E02EB71683D76C65D4C0ECCA690E46C1992D62C4088F6D35AFD17512F
Submitted as: bcdbf05d9ce37ad3802f34b13366e41a212e2bd26dffc1151ab82a4a4dee0b4c
File type: office-ooxml · Size: 103725 bytes
Verdict: malicious (97/100) · Family: Docusign112101

Detections (5 of 54 engines)

MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
ClamAV (daily): Xls.Downloader.Docusign112101-9908076-0
oletools (Office/OLE maldoc): oletools:suspicious-macro
Microsoft Defender: TrojanDownloader:O97M/Qakbot
Kaspersky (KVRT): HEUR:Trojan.Script.Generic

MITRE ATT&CK

T1105

Why this verdict

The malicious score of 97/100 is the fusion of 6 weighted signals:

ClamAV (daily) flagged Xls.Downloader.Docusign112101-9908076-0 (rule Xls.Downloader.Docusign112101-9908076-0) - engine signal, weight 0.90, confidence 0.95
Contacted 16 external host(s) at runtime (2 HTTP) - network signal, weight 0.40, confidence 0.80
Document contains macros/active content: xlm-macro - static signal, weight 0.35, confidence 0.75
Obfuscated javascript script: defense-evasion (rule script-deobfuscation) - static signal, weight 0.35, confidence 0.75
oletools (Office/OLE maldoc) flagged oletools:suspicious-macro (rule oletools:suspicious-macro) - engine signal, weight 0.35, confidence 0.70
Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55

Dynamic analysis (windows)

1372 behavior events · 0 ATT&CK techniques · 21 dropped files.

Runtime network

www.msftconnecttest.com
rb.symcd.com
rb.symcb.com
inference.location.live.net
to-do.office.com
staging.to-do.officeppe.com
teams.cloud.microsoft
outlook.office.com
outlook.office365.com
outlook.cloud.microsoft
ntp.ubuntu.com
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787829955&P2=404&P3=2&P4=MPpAKv%2fC7bzTF07k72MK9ZhrxaGPEafo%2bsecxWWhwTeoLtm8ZugE9mfFCBdQej6wFyTeOWnBNDJVAMcYwu6XjA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
23.40.52.174
23.11.37.157
192.168.122.108
52.123.252.247 AU · Sydney · AS8075 Microsoft Corporation

Dropped files

root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
root_.cache_mesa_shader_cache_index - 6d0552c4e71fe85e6cdc7e7745882ea91b382fbc56448f2e9e1c2d77dcf67d81
root_.config_libreoffice_4_.lock - d7b3e4752ae8a5e9c935abac94ea3d74e814e70240ededa513937a1c0dd81d7c
root_.config_libreoffice_4_user_GraphicsRenderTests.log - ca66014b962c5f87639d09e17a2dc07c7d1657c2f71a392b1d9bb67cd3a511d9
root_.config_libreoffice_4_user_autotext_mytexts.bau - 951c8adf2ef8d3edeadb03b0c4374a2d75cf5fed945eeff259d33aa2e77acf7f
root_.config_libreoffice_4_user_basic_Standard_Module1.xba - b434faf21386064e2e81af758f307ae8bea72c0cb6c8510d55b1bc1bb38f8612
root_.config_libreoffice_4_user_basic_Standard_dialog.xlb - 85c83411f1285a0d0d9b511a7ea7dd06d5ac9b97f90d286adaca084212e3fe80
root_.config_libreoffice_4_user_basic_Standard_script.xlb - 80cb10b100053f6e0b26bb009a2b8ccbdedb761901680500a4736f7afbf1f959
root_.config_libreoffice_4_user_basic_dialog.xlc - 5b72c4cc5130eccab44cbfb91270befaeaf8ee7ab97cf205ee2abb582fa4a9e5
root_.config_libreoffice_4_user_config_autotbl.fmt - 713229151490c66f043cb4865147c97458b4f33e4eb5f2bb4133c58cbe77041e
root_.config_libreoffice_4_user_database_biblio.odb - c3dd4e9008be33cdede3abf822e9b748a201704adf95aad92ab894dd98b3fe85
root_.config_libreoffice_4_user_database_biblio_biblio.dbf - aefc2bb614c2e307870405e0fd72f4a22cf794c396a73ce0551f18a478e80ed2
root_.config_libreoffice_4_user_database_biblio_biblio.dbt - 3ab142231d8075fdd02c95a691ddce590e0f81450744cb87ca610fd06d75cac1
root_.config_libreoffice_4_user_extensions_buildid - 4e80829cd1c13534fecb420763830c6a6fe6d9a8a463cefc817071e313bdc7bc
root_.config_libreoffice_4_user_extensions_bundled_lastsynchronized - 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787829955&P2=404&P3=2&P4=MPpAKv%2fC7bzTF07k72MK9ZhrxaGPEafo%2bsecxWWhwTeoLtm8ZugE9mfFCBdQej6wFyTeOWnBNDJVAMcYwu6XjA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

72.154.7.96
4.150.223.104
52.123.252.247
52.110.12.25
52.110.12.52
4.230.171.124
20.42.179.192
4.144.132.114
74.179.77.164
74.178.240.61
135.232.92.137
20.76.201.171
20.42.65.94
203.26.79.13
52.123.128.14
52.148.114.188

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report