Analysis
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max time kernel
108s -
max time network
110s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
03-11-2024 15:52
Static task
static1
Behavioral task
behavioral1
Sample
95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe
Resource
win7-20240903-en
General
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Target
95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe
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Size
62KB
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MD5
9f84a836dcb05b2814292a4f87728560
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SHA1
576d67df08343982ab95f779713ea8ffca8c02c6
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SHA256
95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196b
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SHA512
bde1e2da8a095ee265fef99ea59484a21f9db4b4db7b063bfd6c375ed1953efe703089e3ff67205a6a39fe5ddf4ff5a7fab2f755c034bfde248ad1f8cb0cf85b
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SSDEEP
1536:saTkcl2v/z0thjkh6+uYLo31d0JuPrROVY:Jo0cAthu6+FQ0JuPkY
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:
95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 2208 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:
95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exebiudfw.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.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
Processes:
95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exedescription pid Process procid_target PID 4568 wrote to memory of 2208 4568 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe 88 PID 4568 wrote to memory of 2208 4568 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe 88 PID 4568 wrote to memory of 2208 4568 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe 88 PID 4568 wrote to memory of 4412 4568 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe 89 PID 4568 wrote to memory of 4412 4568 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe 89 PID 4568 wrote to memory of 4412 4568 95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe"C:\Users\Admin\AppData\Local\Temp\95413e2e8b2dc09cee2d38127fc970901c2e26125c74ca0d26c3009055bc196bN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4568 -
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:2208
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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:4412
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
62KB
MD5c48be547be141991087c8c8b5f216beb
SHA1a9cce11fe6e56d13be7c70a737f92c28ac866102
SHA2569bab353b37c9864d64242b5a3b0dfd2bab743a859fc93271a032d834b886b2eb
SHA5123cf19a6a707f5dec5b8ff7725dd856bd1a306216a785961fa97414461f8e4ddf773562c1dc9b0c7e2d6065d52d2c06c58a383a90d8d26af8b1a043bcca5de4c2
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Filesize
512B
MD5657ce9e5dd337971e44dfb9cb3fbf7dd
SHA1026734083afaa4b7d298781b26a72ac9b67ac831
SHA2563138d6a5526aaa3cb120adb309f2a27d5fec03c8aa088268a1c7f378dd722472
SHA51279aab9648bb19ebe5946dd9edd7e11a70ea7b340a1c7539ccff3d3d13de2932bf5ea9077c079208e09bf5d632f00541e52d4926c5c80f86741effb8d86acd26d
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Filesize
340B
MD589e8f90e85cfa178c0696b9d15c4b610
SHA1613a6cfed57c95991a51cd976c776566007b7db9
SHA256375cc9ec6517979f470f60f774ed62df0828d3c72ebb66c4451a78a5c265e7e1
SHA5128283e34429ff8d2d26b82390ac6880398a93ea187bae890174ef44498d2c0986d6ae636377690196d64087a14d0a09274f83249e2795d8474c75a21298f90253