Analysis
- max time kernel
94s - max time network
95s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
18/09/2024, 23:55
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe
Resource
win7-20240903-en
7 signatures
120 seconds
General
- Target e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe
- Size 64KB
- Sample240918-3yetwszdmd
- SHA256 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471
- MD5 4470b939c7d2bc4668a99b4026ff2ad0
- SHA1 99e5071ecc33b6bf05bc3a0d39313274ee774837
- SHA512 f6ee3a92635447b3c8be8e70f4875d31e54399175a4ea88bb83d4ade0c70330df06fe84f8b8a05ddce36fdcbe4f72b8077dbb4d3c4d6ac08806c05fe1102ea10
- SSDEEP 1536:6bQx5oPsr2vFxDPhAvzgAQzFZ77MzeTmUDu:6bQRSHpAvzyf7MzeThDu
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
urelas
C2
-
218.54.47.76
-
218.54.47.77
-
218.54.47.74
Signatures
- 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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe - Executes dropped EXE 1 IoCs
pid Process 2184 biudfw.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.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
description pid Process procid_target PID 2624 wrote to memory of 2184 2624 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe 84 PID 2624 wrote to memory of 2184 2624 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe 84 PID 2624 wrote to memory of 2184 2624 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe 84 PID 2624 wrote to memory of 3904 2624 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe 85 PID 2624 wrote to memory of 3904 2624 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe 85 PID 2624 wrote to memory of 3904 2624 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe"C:\Users\Admin\AppData\Local\Temp\e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624 -
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:2184
-
-
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:3904
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\biudfw.exe
- Size 64KB
- SHA256 d2deb6a03cbb5855516c80df529e80b5e4e20fb1bc42b95415790615d8134c86
- MD5 a44adf19d443247fb19fcf512326e602
- SHA1 6c373b604e2322f4825257a2b5d3bb018602def7
- SHA512 c6fd84e89923d30a55abb8f128a27eb2a22c58f3a00ed8da1caa1c7bc20b7dff8633389b02f94034564b3a14bc222cad322343b6703b0c57bd50360a4353dff8
- SSDEEP 1536:6bQx5oPsr2vFxDPhAvzgAQzFZ77MzeTmUDPJ:6bQRSHpAvzyf7MzeThDPJ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
- Size 512B
- SHA256 44f3db1bb73bb207a88008ae28d0399f888b5714ccccb2056f4148b4455e693d
- MD5 efd90b3ac908d5482af367de3a82184a
- SHA1 de9f01d2ed0247b7b347e55c5a09721a60147fb9
- SHA512 6e3355f895af1d81887d5750033c5a139e4a0e1c2c928aeef1fd37f9c191e754b1f524d252c229ea5e744dbef4dd0a8240d9d3443651d42de198e82a197afb02
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
- Size 340B
- SHA256 002409ecb1af31cdd8afece723eb165c7fcb5de75428a849c17eed71a93c7bfe
- MD5 bbac40577441d6712d336dea5b1192a5
- SHA1 22aae732fe7a35768cdfb454b142ccd05ba75484
- SHA512 f668cae94f1cbbcbf19c14397970ffcffeb325d64827c91f84e5bfd6cf9e31ad33d02f077b8db96955846cc8b65fe52faede06c2d7c03618635e0d2d5af93590
- MD5 SHA1 SHA512