Analysis
-
max time kernel
96s -
max time network
98s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 22:50
Static task
static1
Behavioral task
behavioral1
Sample
66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe
Resource
win7-20240903-en
General
-
Target
66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe
-
Size
60KB
-
MD5
71d14b003ceebb2f1fc12c81ad3347f0
-
SHA1
dbf66776e4bd9ababc133802773fb2a30770e673
-
SHA256
66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2
-
SHA512
66f1bcc388e734e116776e4ac59879df4cb63fe40415ced19937c56b1acff53788014244e7b21a548c97d9e9f44bcf644ff4fbeac7a724ec2e82071caf2e7e3e
-
SSDEEP
768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxP2:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdaa
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
Signatures
-
Urelas family
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 4144 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.
Processes:
66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exebiudfw.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.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:
66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exedescription pid process target process PID 4244 wrote to memory of 4144 4244 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe biudfw.exe PID 4244 wrote to memory of 4144 4244 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe biudfw.exe PID 4244 wrote to memory of 4144 4244 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe biudfw.exe PID 4244 wrote to memory of 2864 4244 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe cmd.exe PID 4244 wrote to memory of 2864 4244 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe cmd.exe PID 4244 wrote to memory of 2864 4244 66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe cmd.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe"C:\Users\Admin\AppData\Local\Temp\66798c123996bfdfcb15eb67af33ae27352325bf55a7215be3d827bf7e8fb9b2.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4244 -
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:4144
-
-
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:2864
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
60KB
MD56ed47abc6697533d9da946a97bbedd4b
SHA1f8ace8596ff8fa0029bfc0d60a4175a03e672bd7
SHA256d366b9f00bb74790bf3c698c9967dd68a537c6bc71e2cae5640880798ade72ba
SHA5122ea098fa25b64600817dca047807c94d6561230c98b981ed549077926575fe027c633ada80ff82f866e1ad412bcb134c2c6b21028c4c8759352dab7ed9eb00b4
-
Filesize
512B
MD555e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1449221fd8d7196a54de2bd583625d8d1b64db56a
SHA256a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
SHA5124af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
-
Filesize
338B
MD5617d4e7a3a9c9acae5f71250a0a4adf5
SHA148d4fb6bcae8356bcc460b62ce7f6300215c57a8
SHA25624ed099bae28648bbe47e725341945d0203dc1ecf7057675ede246e5f2b55f8f
SHA512be2081624b955f5adc0846c37f99c861c496a4266fbb297d9c95e8ca71a81c1843a682d7f745865ed3973923fc16357b4f1573cb25dc313969086f44bfeb302e