Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
17-09-2024 11:51
Behavioral task
behavioral1
Sample
ngrok.exe
Resource
win7-20240903-en
General
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Target
ngrok.exe
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Size
74KB
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MD5
7f79bdf9fe741fe446c056005a52fd8a
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SHA1
dc7f0987c8e34303555682f3827537c70a0963e0
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SHA256
9b5b73e916f04101f6bb33a5f1064e54bbaa04c1cf8efe9a40b7bf5deb18da6e
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SHA512
dbcc16a8bc70e22f7073e7bd10b137eb7eb4430bbec6687c45d8e8cf203d35e23d8c554d9ef9f5e59613320b4fe5a312b37cb98a7a3686a18a7a93ff053888e3
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SSDEEP
1536:QRU98cxpeaC/zPMV9fxraL2UIeH1bzKNm0Qzc7qVclN:mU+cxp7AzPMVz1kH1bz6Qu4Y
Malware Config
Extracted
asyncrat
Venom RAT + HVNC + Stealer + Grabber v6.0.3
Driver
13.229.3.203:19322
locsuccac
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delay
1
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install
true
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install_file
ngrok.exe
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install_folder
%AppData%
Signatures
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Processes:
resource yara_rule behavioral2/memory/4960-1-0x0000000000460000-0x0000000000478000-memory.dmp VenomRAT C:\Users\Admin\AppData\Roaming\ngrok.exe VenomRAT -
Async RAT payload 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\ngrok.exe family_asyncrat -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ngrok.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation ngrok.exe -
Executes dropped EXE 1 IoCs
Processes:
ngrok.exepid process 5100 ngrok.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4460 timeout.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 47 IoCs
Processes:
ngrok.exengrok.exepid process 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 4960 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe 5100 ngrok.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
ngrok.exengrok.exedescription pid process Token: SeDebugPrivilege 4960 ngrok.exe Token: SeDebugPrivilege 4960 ngrok.exe Token: SeDebugPrivilege 5100 ngrok.exe Token: SeDebugPrivilege 5100 ngrok.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
ngrok.exepid process 5100 ngrok.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
ngrok.execmd.execmd.exedescription pid process target process PID 4960 wrote to memory of 4156 4960 ngrok.exe cmd.exe PID 4960 wrote to memory of 4156 4960 ngrok.exe cmd.exe PID 4960 wrote to memory of 4432 4960 ngrok.exe cmd.exe PID 4960 wrote to memory of 4432 4960 ngrok.exe cmd.exe PID 4156 wrote to memory of 2684 4156 cmd.exe schtasks.exe PID 4156 wrote to memory of 2684 4156 cmd.exe schtasks.exe PID 4432 wrote to memory of 4460 4432 cmd.exe timeout.exe PID 4432 wrote to memory of 4460 4432 cmd.exe timeout.exe PID 4432 wrote to memory of 5100 4432 cmd.exe ngrok.exe PID 4432 wrote to memory of 5100 4432 cmd.exe ngrok.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\ngrok.exe"C:\Users\Admin\AppData\Local\Temp\ngrok.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4960 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ngrok" /tr '"C:\Users\Admin\AppData\Roaming\ngrok.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4156 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "ngrok" /tr '"C:\Users\Admin\AppData\Roaming\ngrok.exe"'3⤵
- Scheduled Task/Job: Scheduled Task
PID:2684
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7196.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:4460
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C:\Users\Admin\AppData\Roaming\ngrok.exe"C:\Users\Admin\AppData\Roaming\ngrok.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:5100
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5baf55b95da4a601229647f25dad12878
SHA1abc16954ebfd213733c4493fc1910164d825cac8
SHA256ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
SHA51224f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545
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Filesize
149B
MD51e9c076c8370fc9d09046665b2289f91
SHA1743625caf97fde8ce486b734234bac9a798cdff9
SHA2564e26aa65dee357ad168f9eb952408bdf8bb08860ed290256afb8acc60ab20ead
SHA512300bcdb0a376930fb1db439863cda0bdf0a97c9355fff188be4b0d1d0228b74f3ead16bfa9af3130558cc8cd339c432367b13ec5403eb7538470696177d63f8a
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Filesize
8B
MD5cf759e4c5f14fe3eec41b87ed756cea8
SHA1c27c796bb3c2fac929359563676f4ba1ffada1f5
SHA256c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
SHA512c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b
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Filesize
74KB
MD57f79bdf9fe741fe446c056005a52fd8a
SHA1dc7f0987c8e34303555682f3827537c70a0963e0
SHA2569b5b73e916f04101f6bb33a5f1064e54bbaa04c1cf8efe9a40b7bf5deb18da6e
SHA512dbcc16a8bc70e22f7073e7bd10b137eb7eb4430bbec6687c45d8e8cf203d35e23d8c554d9ef9f5e59613320b4fe5a312b37cb98a7a3686a18a7a93ff053888e3