Analysis
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max time kernel
94s -
max time network
96s -
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 11:29
Static task
static1
Behavioral task
behavioral1
Sample
2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe
Resource
win7-20240903-en
General
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Target
2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe
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Size
71KB
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MD5
5cc35f43952082ee1ba69f43df780768
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SHA1
fa6b3e264bada2a2a43257d6618282358e8b59a8
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SHA256
2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098
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SHA512
91301178d59864d0bffac4ec8352bc127504744c1a7da55ac42cab11e06d362572703ca991e2480fa1348843ea9df68700e2bb30a78c96ff49aaf787298465d3
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SSDEEP
1536:v6fqsAPQYGmPzmZDDZrV8sMQXGkfn33n7z5WeIuhCarawE:yLAYUzmdD0sMQl7d7IuhCae7
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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe -
Executes dropped EXE 1 IoCs
pid Process 4248 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.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 2208 wrote to memory of 4248 2208 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe 88 PID 2208 wrote to memory of 4248 2208 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe 88 PID 2208 wrote to memory of 4248 2208 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe 88 PID 2208 wrote to memory of 2036 2208 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe 89 PID 2208 wrote to memory of 2036 2208 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe 89 PID 2208 wrote to memory of 2036 2208 2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe"C:\Users\Admin\AppData\Local\Temp\2548bd07094d7332d8453d7ec85e27d37f6cdd35756c460a3471899ce759e098.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2208 -
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:4248
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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:2036
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
71KB
MD5daad5e73b552940df13402c4b097c890
SHA147f6b21e8f2b178427a9e33dad843e890376a652
SHA25695075b6689c3e32cfa3bf5cbf62dbff82176e24d5fbfe4604f1063414d8b0543
SHA512d7881a65a0588234748327b32af6d0b9896d82b24267ac9388bfc4d4f313be0f6d37ec8ea2d15d154b717bc41fa047e06a25e58cd373edb4c4b4522e549e7d2e
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Filesize
512B
MD51c9b2720af0ca9528b47898d9c7f4799
SHA180495f16e333f54ecc700252323c2a7cb7d751e1
SHA256d1ea9a17b5a635a121e82e7963d3b134f74050da9debcd40c9622f50c5d38fe5
SHA5125afe876f2cd887458656b1747bce08d03f26ef286bcc83efa93e0111be856d0564bee4d6ef5637c167626bac121f7371b69c7952502d47784ac9ad568bf53eac
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Filesize
338B
MD54e1c25cc44014a62266f9dbf9111cafe
SHA134981f1ab5d6fc8e6d19bbffb5852a5063440259
SHA2565dbb70dab74e729a75eb059f55efb1b4f24ce66d1a13a8bdfcb9b32d01ccaa77
SHA512a3dd8892d913437bdc611273251a4ddc56e625ac2d6b1e63792965d301fe6a50d338dd417d8338604b047cd0e93e2501efb63c71a22be14c782a01c12a342aa4