Analysis
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max time kernel
94s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-11-2024 23:01
Static task
static1
Behavioral task
behavioral1
Sample
41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe
Resource
win7-20241023-en
General
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Target
41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe
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Size
55KB
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MD5
a25ddf0fd1ed5c42d60a8b1fd7df0cd1
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SHA1
c98951417f3117899f0c63a5097f9fe0a8f4d43d
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SHA256
41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf
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SHA512
ece28ec1ffff9cfe6d49d8846232606ab2713dd2fc3416bde8ae884297b025165d46899b67a129f05be122a63afd4b120d6f5b3107e11553c3e3ce881e1899de
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SSDEEP
1536:qw788avzI+on+TqOK0cHMqtzMLvWsrupwnTf1GqT7E:qwda7KVr0cHneunw1E
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:
41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid process 3996 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:
cmd.exe41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exebiudfw.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exedescription pid process target process PID 2204 wrote to memory of 3996 2204 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe biudfw.exe PID 2204 wrote to memory of 3996 2204 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe biudfw.exe PID 2204 wrote to memory of 3996 2204 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe biudfw.exe PID 2204 wrote to memory of 3272 2204 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe cmd.exe PID 2204 wrote to memory of 3272 2204 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe cmd.exe PID 2204 wrote to memory of 3272 2204 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe"C:\Users\Admin\AppData\Local\Temp\41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204 -
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:3996
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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:3272
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
56KB
MD5ee7469c3a9a37e01d43257c4c03b0e11
SHA1ef9e7d34af9cb10fd7f976213dd49fa0aade6049
SHA2565b24e612cec084051620b1119b437b6a5f99099d983b1512cd0cbb2c5e203b66
SHA512365e4d2adb99bb64ac1c84b6d03c7457ac4b47647f1e733c01f32fd697ecd4e085466f9b00ad66d63dd5021c9ba54cb3a6943631dc60d039c2a424b3bf1a4ca9
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Filesize
512B
MD50750e4580a3e9076e82bdc6ad33ba927
SHA1b1e526b3833feda0e3b0738c6865fdac6360bf07
SHA25674428e568204ea0d1c31570864cb96b1c2b672880f7575220957bf5fc2b24d89
SHA512303b2cb8e644b336d7bf0892eadc84b414afdc41216719721aa0cf27fc18ecea1a2e943f07813c41d55c4166e489f89ec61a4fcead679ed3de8b323ecb42a8d9
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Filesize
338B
MD506d7bf5c3af0789f97d114be8ae5d33d
SHA1e9e2969b2fe545dfe2ca056a4a5b1f744f264bf8
SHA25682274b407242cb4c72fc273a23212f5a71bbc2724cc381beb8e3299831a565b3
SHA512c8cd2b5f4be0e5365fd1823fc31d6ff012a75f9f0b7e394e0054ff4a0d5316fcfba7be5251b828dbf35020a86a8fcabd0e1e129897cbe890f86e03032542c1cd