Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2024 20:57
Static task
static1
Behavioral task
behavioral1
Sample
2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe
Resource
win7-20240903-en
General
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Target
2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe
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Size
71KB
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MD5
913f94f31805d538218cd771b813e070
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SHA1
e48df490a839e1caeb120be092fcc1f3c093bd03
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SHA256
2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4
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SHA512
5998d01ead0b6cff372d6698ea8ba0117996ce0b34d3d358f8704d9da0b62737dc10c1138c6bbd654db05f7aca070f6405da0bcb980d17f3d06e5423d4b053a6
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SSDEEP
1536:v6fqsAPQYGmPzmZDDZrV8sMQXGkfn33n7z5WeIuhCarawG:yLAYUzmdD0sMQl7d7IuhCaeZ
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:
2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 3060 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.exe2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exebiudfw.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exedescription pid Process procid_target PID 4264 wrote to memory of 3060 4264 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe 82 PID 4264 wrote to memory of 3060 4264 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe 82 PID 4264 wrote to memory of 3060 4264 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe 82 PID 4264 wrote to memory of 536 4264 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe 83 PID 4264 wrote to memory of 536 4264 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe 83 PID 4264 wrote to memory of 536 4264 2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe"C:\Users\Admin\AppData\Local\Temp\2e8659943c6cba2cc61468d30ca5d0eaeed74241d20d4dcdce7ba11b7789ecd4.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4264 -
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:3060
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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:536
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
71KB
MD52569ee54d5ed10c26fb2cd9c185d3ce5
SHA156fe169b637b054bed25fee9c97ab9b89df2e8a4
SHA2565469bc5ab3d5a5c76bd7418dc139ea14e56299141f8e75cba4d04ad6464b738c
SHA512286771d924f24e0624d4f825ece4e2249990a085be05547c58af38bb4c1ab955514bc1caa25d9da9e1104d6932e84ce87d1b7b165bf983b5d452514f21ac58f2
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Filesize
512B
MD51c9b2720af0ca9528b47898d9c7f4799
SHA180495f16e333f54ecc700252323c2a7cb7d751e1
SHA256d1ea9a17b5a635a121e82e7963d3b134f74050da9debcd40c9622f50c5d38fe5
SHA5125afe876f2cd887458656b1747bce08d03f26ef286bcc83efa93e0111be856d0564bee4d6ef5637c167626bac121f7371b69c7952502d47784ac9ad568bf53eac
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Filesize
338B
MD59d63c89086b894cc289dcd348ec8cc90
SHA135e257f48f37f1609fb49e01a620c935168b9377
SHA256e34d97861ebc6d2baf93d0592479c3dba671e558680c607fbae3462c0ca37094
SHA5120434121fc02939568271494bbed9aafb451fa60b98b9587452a6df0b050c50c3cfca19141c79c4b5e76ed0d6c4c749297580f7bd627f91264948fc0b3b63b834