Analysis
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max time kernel
60s -
max time network
58s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14-12-2024 19:47
Static task
static1
Behavioral task
behavioral1
Sample
d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe
Resource
win7-20240903-en
General
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Target
d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe
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Size
57KB
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MD5
7f987b52648a3805a0a48388fe18bfce
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SHA1
8549fd4aff18239c3036cb402e18b096c6800465
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SHA256
d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d
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SHA512
b351d0ad6f826e6ae25796712c70cab59daf76a7ceb7bf4023e016c41daab4fa380c3a1e99b9d77ce39cb2ea3c797f311966a1312d522d2636a29a6bee593db2
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SSDEEP
1536:MQPzemdaNqAPG17k74qlmbbVgYyvxcd5jnGWqN7kS8Dc:MOemdTd1o74qlmbbJ+x+Ikpc
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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe -
Executes dropped EXE 1 IoCs
pid Process 2988 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 d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.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 4396 wrote to memory of 2988 4396 d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe 83 PID 4396 wrote to memory of 2988 4396 d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe 83 PID 4396 wrote to memory of 2988 4396 d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe 83 PID 4396 wrote to memory of 1740 4396 d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe 84 PID 4396 wrote to memory of 1740 4396 d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe 84 PID 4396 wrote to memory of 1740 4396 d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe"C:\Users\Admin\AppData\Local\Temp\d7a5d61abd7dd2566a85b10c0509c6de9380f23fe79589468eea79c8669ea15d.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4396 -
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:2988
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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:1740
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
57KB
MD5898f3079af500bff2b2a49033c2482cf
SHA154029e4e4c837e14bb167235137fbdc4706eaecb
SHA2566563bb99bddcd7f3f02fce9daef29aa3d511143d5937d6262b24b26b7a7414e7
SHA512bea98fdb21997e5884219238811ab370336513f9a9f115d4af888189ccdd45d5a9600a190351b47e1636e35632c784fa15f825bbda3b7d36083c79d1f7756a91
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Filesize
512B
MD57cdc8777d33db85bc19aefb64879a7f7
SHA1f2d494d4dfe93a05eb58513935196e8578648adf
SHA2569af382db716e39144dda99d3d9afbd5df9b65e6a36af229e715c00539bce6336
SHA51234b075db80bf3704f76f9dd28eedffe88c9b3b5f730c79c27b9908fe2865847ae925487de2dcc1a8566bd3836d3b770ca3831d0b110312376684a92e42c6b48f
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Filesize
338B
MD59a13f6100e57f12ce71840df339791df
SHA13b8ebd61559ec966199ef918c82be1c32d412305
SHA256f88f60e7aa07e4662e7d1fcf3f6280f18e38b2ca64bae380662a47b098680a4e
SHA51271a8945ce0033b401c35bcd124755d156e05b0d5b190e629d970c5dc3850100f5acbc3096f6788c24cc99cc6b498eb0cc4afb7907dc49b2f2b9b6d911331c29d