Analysis
- max time kernel
148s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
25/05/2024, 23:20
General
- Target 5c95d5493dda877b228a6485a6d40d9c.exe
- Size 7.3MB
- Sample240525-3bd9vaeh38
- SHA256 fdb5b2a0041b0939552ecd31e382e28529313c8bc8a656eb7de1cef9fbd6eee9
Malware Config
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 3 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
- Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 4 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 7 IoCs
Detects Themida, an advanced Windows software protection system.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5c95d5493dda877b228a6485a6d40d9c.exe"C:\Users\Admin\AppData\Local\Temp\5c95d5493dda877b228a6485a6d40d9c.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\4.exe"C:\Users\Admin\AppData\Local\Temp\4.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3.exe"C:\Users\Admin\AppData\Local\Temp\3.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\unnavt.exe"C:\Users\Admin\AppData\Local\Temp\unnavt.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\r.exe"C:\Users\Admin\AppData\Local\Temp\r.exe"5⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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=1408 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
3.exe
4.exe
r.exe
tmpA546.tmp
tmpA58A.tmp
tmpA5E4.tmp
tmpA60A.tmp
tmpA886.tmp
unnavt.exe
memory/1820-75-0x00000000075A0000-0x0000000007ACC000-memory.dmp
memory/1820-74-0x0000000006EA0000-0x0000000007062000-memory.dmp
memory/1820-234-0x0000000000A00000-0x000000000125C000-memory.dmp
memory/1820-59-0x0000000000A00000-0x000000000125C000-memory.dmp
memory/1820-63-0x0000000000A00000-0x000000000125C000-memory.dmp
memory/1820-64-0x0000000000A00000-0x000000000125C000-memory.dmp
memory/1820-65-0x0000000005F60000-0x0000000006578000-memory.dmp
memory/1820-66-0x00000000058B0000-0x00000000058C2000-memory.dmp
memory/1820-68-0x0000000005940000-0x000000000597C000-memory.dmp
memory/1820-69-0x00000000058D0000-0x000000000591C000-memory.dmp
memory/1820-71-0x0000000005BC0000-0x0000000005CCA000-memory.dmp
memory/1820-78-0x0000000007380000-0x000000000739E000-memory.dmp
memory/1820-77-0x0000000000A00000-0x000000000125C000-memory.dmp
memory/1820-76-0x0000000007230000-0x00000000072A6000-memory.dmp
memory/3800-34-0x0000000006800000-0x0000000006866000-memory.dmp
memory/3800-39-0x0000000008B60000-0x0000000009104000-memory.dmp
memory/3800-31-0x0000000006140000-0x00000000061DC000-memory.dmp
memory/3800-30-0x0000000000D30000-0x0000000001638000-memory.dmp
memory/3800-29-0x0000000000D30000-0x0000000001638000-memory.dmp
memory/3800-26-0x0000000000D30000-0x0000000001638000-memory.dmp
memory/3800-23-0x0000000000D30000-0x0000000001638000-memory.dmp
memory/3800-37-0x0000000008510000-0x00000000085A2000-memory.dmp