Analysis
- max time kernel
151s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
31/05/2024, 01:05
General
- Target 1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe
- Size 953KB
- Sample240531-bfwadaab94
- SHA256 1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1
Malware Config
Extracted
-
remcos
-
RemoteHost
-
104.250.180.178:7902
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
Microsoft .exe
-
copy_folder
Microsoft
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Microsoft -QUCX7D
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 19 IoCs
- Detects executables built or packed with MPress PE compressor 18 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 3 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 3 IoCs
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 9 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe"C:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe"C:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exeC:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe /stext "C:\Users\Admin\AppData\Local\Temp\fokbgmiroats"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exeC:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe /stext "C:\Users\Admin\AppData\Local\Temp\hipthfskcilxzem"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exeC:\Users\Admin\AppData\Local\Temp\1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1.exe /stext "C:\Users\Admin\AppData\Local\Temp\skvmixdmqqdkktieygo"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4076 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
fokbgmiroats
memory/824-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp
memory/824-16-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/824-3-0x00000000058A0000-0x0000000005932000-memory.dmp
memory/824-4-0x0000000074C10000-0x00000000753C0000-memory.dmp
memory/824-5-0x00000000057E0000-0x00000000057EA000-memory.dmp
memory/824-6-0x0000000005A30000-0x0000000005ACC000-memory.dmp
memory/824-7-0x0000000007100000-0x0000000007118000-memory.dmp
memory/824-8-0x0000000074C1E000-0x0000000074C1F000-memory.dmp
memory/824-9-0x0000000007120000-0x0000000007130000-memory.dmp
memory/824-10-0x00000000075D0000-0x0000000007690000-memory.dmp
memory/824-1-0x0000000000CE0000-0x0000000000DD2000-memory.dmp
memory/824-2-0x0000000005E50000-0x00000000063F4000-memory.dmp
memory/1836-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-17-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-11-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-12-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-15-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-68-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-67-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-65-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-64-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-63-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-62-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-61-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1836-56-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1836-59-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1836-60-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3272-27-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3272-40-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3272-35-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3272-54-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3272-37-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3788-36-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3788-39-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3788-46-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3788-33-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3788-30-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4780-41-0x0000000000400000-0x0000000000457000-memory.dmp
memory/4780-45-0x0000000000400000-0x0000000000457000-memory.dmp
memory/4780-38-0x0000000000400000-0x0000000000457000-memory.dmp
memory/4780-34-0x0000000000400000-0x0000000000457000-memory.dmp
memory/4780-28-0x0000000000400000-0x0000000000457000-memory.dmp