Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-11-2024 00:12
Static task
static1
Behavioral task
behavioral1
Sample
6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe
Resource
win7-20240903-en
General
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Target
6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe
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Size
55KB
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MD5
dbedf526a0102608990dc45a085e9189
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SHA1
f2a25eff01d8390dbc06663dd91d030f56cc5b49
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SHA256
9c45c7887f9588ddbf73c36ab5ea79c5d585fcddabaf2edd2353eba9accf5858
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SHA512
4af37aae547ac01f4d84673cad3a135db1f0e9b6aa2b5c02cb2ed270472383f143a6f2dd72d1f52598f92400ea13bf6a8ceea721c963604c5ebb79c3c97e8a7a
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SSDEEP
768:egjKOwfkQsxi4CUWsFZzdXCHuWFpuQlBVQayBAFp1pAK4gpuK1cnPdFmfbpA9ANw:bKOjssTdFMsAX1pA6G0qm1Y8jgFzT
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
Signatures
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Urelas family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 636 biudfw.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 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exebiudfw.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exedescription pid process target process PID 4204 wrote to memory of 636 4204 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe biudfw.exe PID 4204 wrote to memory of 636 4204 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe biudfw.exe PID 4204 wrote to memory of 636 4204 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe biudfw.exe PID 4204 wrote to memory of 4196 4204 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe cmd.exe PID 4204 wrote to memory of 4196 4204 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe cmd.exe PID 4204 wrote to memory of 4196 4204 6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe"C:\Users\Admin\AppData\Local\Temp\6a43a87733f9b0cbede5e6ebacedd6d4284b89fbf694c2729f8c2d72e22ec085N.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4204 -
C:\Users\Admin\AppData\Local\Temp\biudfw.exe"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:636
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "2⤵
- System Location Discovery: System Language Discovery
PID:4196
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD57d191a8c9952b8c6848f90b03613416d
SHA18ad36dd4c95449bd29bd0445f8ad994d3e073ff6
SHA2565e43c8ed06fca3915f730a36925259d2dcf984e75beecf60e290d9f2dfb47a23
SHA5126c058b0964cfec66a6829f5cdcb307db2ae8a7f5b1d2d4c38dc9a34fb30b920ae705d620a38de2f22d060666cebde0ba0f0cf86f1a3eb954c24d66dbc1b1c093
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Filesize
512B
MD51e75a7e32613b9d0b73f13b66c2c2f58
SHA1035e2d6ab4ac34190f0e684681098188409e978c
SHA2569f8aa6da5d4cd4a6f17fc229bb965d1f2525d6bc7f70ffba6a13c7e3bbd2a1f3
SHA512e8ba9e9796b506655b9432ed7036383a3eab746a948a18df6e9598e59e6830a834e30bad7455bc22d4ae19a63f051d2aaa57b435594e881130559aac385bd8cf
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Filesize
340B
MD5fcbed62ce61f6e4aeca3587f0b55af05
SHA1e42c13fb3236b9deeeea525f5b575fd9cea73c88
SHA25686ddcf4cb767744f95b3deef0dc86e59dc76e172aab73e97ac8712d80e267024
SHA512c74df23b8994b7819cbf6539bbdafda308632cb8f2517dedccbae73f5e2d6a1d02c99f99bae1143460f1ce2276d953f76aabc05a585f3eac77a124f70f7468a0