Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system -
submitted
02-02-2025 14:38
Static task
static1
Behavioral task
behavioral1
Sample
e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe
Resource
win7-20240903-en
General
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Target
e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe
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Size
69KB
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MD5
b2c1bddf5d65b19256c9d964710062f0
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SHA1
dbe208ef560ee7c139850060e7e4d3bc4cb01f8b
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SHA256
e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3a
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SHA512
eed640c3281596ff8cfadad0653e4be1cccb57170a54f73b227e8f02f622246cf7279488976e5c4347b70a9bb1d9cacbb2904207a53c550187374007deaaa189
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SSDEEP
1536:04/WgLAjdZsp+uChoLnDeoqYAJjvLFymnHsPeOtx:l//AjMp+u2onejH2Pea
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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe -
Executes dropped EXE 1 IoCs
pid Process 5088 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 e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.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 864 wrote to memory of 5088 864 e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe 86 PID 864 wrote to memory of 5088 864 e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe 86 PID 864 wrote to memory of 5088 864 e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe 86 PID 864 wrote to memory of 1076 864 e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe 87 PID 864 wrote to memory of 1076 864 e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe 87 PID 864 wrote to memory of 1076 864 e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe"C:\Users\Admin\AppData\Local\Temp\e3dcdc96b8c4965c23b60d3aa9fab42b8493b6a5ffbaaefdb35d2218d2108b3aN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:864 -
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:5088
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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:1076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
69KB
MD55950f24eb8015a124baf1d1ad4ba2df8
SHA130b54aa353e3e652400f20891f47019c953a8034
SHA256f71b51164a9d5d4b200e38d65e628b3d8db126916336349ae983d12170ca39d1
SHA5125c72d1607a41f8fae4aafb0f265c69233b551b6045681f740a2b056f57bdeb5af7fe7df5c8bf9329981842322e1e97e988684792ae3a89a9b05f91ebcf52e2be
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Filesize
512B
MD5a250860c0687ed9dda488805c025a2d2
SHA10c181ed3b46463d35631ca169f0928c33a1da389
SHA2563947c34dfc780b424a3207c6ebe12f667bcb839733107f7a94fe495ec705cb37
SHA5120286fcd24203ef574c9fc37200e4b0e65d58296162aa89b5424ab48b814bd237e609ab7eaf42a69bdad2ab6414bfbbfaec4757e28b29c69752e0e65a653f665a
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Filesize
340B
MD531e7f85f4eeb16ed0ce1fdaf4dae0418
SHA11169cbf553aff5f8544c34a70bac1c623eef47a4
SHA2566b73096255bbf8b10496a41673059dc4a4d8319f8c6fa6d836e45d8cba0558fc
SHA5126d84f0c1cb13520e92897fed6d8a47d97cf26bff16d8bbc632dc29d839e57a0607509ed5b12bed6971001edd77406d7edd2ffe35f1f8f39c7e16112c7ddd6d58