Analysis
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max time kernel
130s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
11/03/2025, 18:24
Behavioral task
behavioral1
Sample
efe.exe
Resource
win7-20241010-en
General
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Target
efe.exe
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Size
45KB
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MD5
cb25f48fae0cc0c1e2404a26bb36e087
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SHA1
8686dc9b9cfc2d359253c8fda397089cbf8f14b1
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SHA256
42404161307a26214069b212b830faa4b46ce3a3bdb53626ebb5d9cd9c81489b
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SHA512
051225e2a0bd6eeaa25513c55d9bee75fbf0bd9fd658602f01b149a72509a4185f28c2cf00a8c0a9ab9f8e619315ce603f2c96b829fe431f9591db0365ec7a99
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SSDEEP
768:edhO/poiiUcjlJInJ3EH9Xqk5nWEZ5SbTDatuI7CPW54:ow+jjgnlEH9XqcnW85SbTYuIA
Malware Config
Extracted
xenorat
192.168.0.20
Xeno_rat_nd8912d
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delay
5000
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install_path
appdata
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port
4444
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startup_name
nothingset
Signatures
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Detect XenoRat Payload 2 IoCs
resource yara_rule behavioral2/memory/1740-1-0x0000000000C40000-0x0000000000C52000-memory.dmp family_xenorat behavioral2/files/0x0004000000022b3b-6.dat family_xenorat -
Xenorat family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Control Panel\International\Geo\Nation efe.exe -
Executes dropped EXE 1 IoCs
pid Process 2952 efe.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language efe.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language efe.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1740 wrote to memory of 2952 1740 efe.exe 86 PID 1740 wrote to memory of 2952 1740 efe.exe 86 PID 1740 wrote to memory of 2952 1740 efe.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\efe.exe"C:\Users\Admin\AppData\Local\Temp\efe.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Users\Admin\AppData\Roaming\XenoManager\efe.exe"C:\Users\Admin\AppData\Roaming\XenoManager\efe.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2952
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
226B
MD5916851e072fbabc4796d8916c5131092
SHA1d48a602229a690c512d5fdaf4c8d77547a88e7a2
SHA2567e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
SHA51207ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521
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Filesize
45KB
MD5cb25f48fae0cc0c1e2404a26bb36e087
SHA18686dc9b9cfc2d359253c8fda397089cbf8f14b1
SHA25642404161307a26214069b212b830faa4b46ce3a3bdb53626ebb5d9cd9c81489b
SHA512051225e2a0bd6eeaa25513c55d9bee75fbf0bd9fd658602f01b149a72509a4185f28c2cf00a8c0a9ab9f8e619315ce603f2c96b829fe431f9591db0365ec7a99