Analysis
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max time kernel
142s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05-11-2022 19:54
Static task
static1
Behavioral task
behavioral1
Sample
BRPlvX6U063IILb.exe
Resource
win7-20220812-en
General
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Target
BRPlvX6U063IILb.exe
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Size
477KB
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MD5
345e4a46e001fbf1af5b0ec5c11f0d64
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SHA1
4e9d962250bb61adcfda04d5068a6485e6a538a3
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SHA256
07336cc7355b9c4a1553a93d24ebb30a502053339e05ffb57476890d2967b6fc
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SHA512
6368a402610d1d1ea9c71fc977365e42bd404536479773bbd865a713f6866728e67739afcf02e0638b0138bce13ee295dd84a9650bf3ee9f603302941f182398
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SSDEEP
12288:uBB05ouHH1J+0g141boR2YBe2H2qNLiboaqiTi21Qr0:KBu1I141b7YE2H7Nmb/iq
Malware Config
Extracted
netwire
212.193.30.230:3367
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activex_autorun
false
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copy_executable
false
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delete_original
false
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host_id
HostId-%Rand%
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keylogger_dir
%AppData%\Logs\
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lock_executable
false
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offline_keylogger
true
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password
Telkomsa@1980
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registry_autorun
false
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use_mutex
false
Signatures
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NetWire RAT payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4312-143-0x0000000000400000-0x0000000000433000-memory.dmp netwire behavioral2/memory/4312-145-0x0000000000400000-0x0000000000433000-memory.dmp netwire behavioral2/memory/4312-149-0x0000000000400000-0x0000000000433000-memory.dmp netwire -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
BRPlvX6U063IILb.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation BRPlvX6U063IILb.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
BRPlvX6U063IILb.exedescription pid process target process PID 4612 set thread context of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 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 2 IoCs
Processes:
powershell.exepid process 3808 powershell.exe 3808 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3808 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
BRPlvX6U063IILb.exedescription pid process target process PID 4612 wrote to memory of 3808 4612 BRPlvX6U063IILb.exe powershell.exe PID 4612 wrote to memory of 3808 4612 BRPlvX6U063IILb.exe powershell.exe PID 4612 wrote to memory of 3808 4612 BRPlvX6U063IILb.exe powershell.exe PID 4612 wrote to memory of 340 4612 BRPlvX6U063IILb.exe schtasks.exe PID 4612 wrote to memory of 340 4612 BRPlvX6U063IILb.exe schtasks.exe PID 4612 wrote to memory of 340 4612 BRPlvX6U063IILb.exe schtasks.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe PID 4612 wrote to memory of 4312 4612 BRPlvX6U063IILb.exe BRPlvX6U063IILb.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\BRPlvX6U063IILb.exe"C:\Users\Admin\AppData\Local\Temp\BRPlvX6U063IILb.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4612 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dGHKyzjTzRJc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3808 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dGHKyzjTzRJc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D69.tmp"2⤵
- Creates scheduled task(s)
PID:340 -
C:\Users\Admin\AppData\Local\Temp\BRPlvX6U063IILb.exe"C:\Users\Admin\AppData\Local\Temp\BRPlvX6U063IILb.exe"2⤵PID:4312
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp2D69.tmpFilesize
1KB
MD5cdd3e291116f27c880a00e8244a15460
SHA1a0e6d5be83d956a8c6767ed8b74352034e530372
SHA25615edb21e25622a70a875161e41995f00a3e16e6d4c6419a9b883bb121b9a66a4
SHA51226e8200e6131158e4645425eee943c250c9f6ed00d30316edecd84994c56b2a5c7b1725afb1f865de3694344a9bcf9367697afa35e8738a0d0fbd8f690776dbc
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memory/340-138-0x0000000000000000-mapping.dmp
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memory/3808-148-0x00000000054F0000-0x0000000005556000-memory.dmpFilesize
408KB
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memory/3808-154-0x0000000007490000-0x0000000007B0A000-memory.dmpFilesize
6.5MB
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memory/3808-147-0x0000000005480000-0x00000000054E6000-memory.dmpFilesize
408KB
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memory/3808-159-0x0000000007190000-0x00000000071AA000-memory.dmpFilesize
104KB
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memory/3808-158-0x0000000007080000-0x000000000708E000-memory.dmpFilesize
56KB
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memory/3808-139-0x0000000002240000-0x0000000002276000-memory.dmpFilesize
216KB
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memory/3808-157-0x00000000070D0000-0x0000000007166000-memory.dmpFilesize
600KB
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memory/3808-142-0x0000000004DA0000-0x00000000053C8000-memory.dmpFilesize
6.2MB
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memory/3808-156-0x0000000006EC0000-0x0000000006ECA000-memory.dmpFilesize
40KB
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memory/3808-155-0x0000000006E50000-0x0000000006E6A000-memory.dmpFilesize
104KB
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memory/3808-153-0x00000000060E0000-0x00000000060FE000-memory.dmpFilesize
120KB
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memory/3808-146-0x0000000004C80000-0x0000000004CA2000-memory.dmpFilesize
136KB
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memory/3808-160-0x0000000007170000-0x0000000007178000-memory.dmpFilesize
32KB
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memory/3808-152-0x00000000720A0000-0x00000000720EC000-memory.dmpFilesize
304KB
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memory/3808-137-0x0000000000000000-mapping.dmp
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memory/3808-150-0x0000000005B50000-0x0000000005B6E000-memory.dmpFilesize
120KB
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memory/3808-151-0x0000000006110000-0x0000000006142000-memory.dmpFilesize
200KB
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memory/4312-145-0x0000000000400000-0x0000000000433000-memory.dmpFilesize
204KB
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memory/4312-143-0x0000000000400000-0x0000000000433000-memory.dmpFilesize
204KB
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memory/4312-141-0x0000000000000000-mapping.dmp
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memory/4312-149-0x0000000000400000-0x0000000000433000-memory.dmpFilesize
204KB
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memory/4612-136-0x0000000007BC0000-0x0000000007C5C000-memory.dmpFilesize
624KB
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memory/4612-135-0x00000000051C0000-0x00000000051CA000-memory.dmpFilesize
40KB
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memory/4612-133-0x00000000055E0000-0x0000000005B84000-memory.dmpFilesize
5.6MB
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memory/4612-134-0x0000000005030000-0x00000000050C2000-memory.dmpFilesize
584KB
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memory/4612-132-0x00000000005F0000-0x000000000066C000-memory.dmpFilesize
496KB