Analysis
-
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
28-10-2024 15:06
Static task
static1
Behavioral task
behavioral1
Sample
267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe
Resource
win7-20240903-en
General
-
Target
267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe
-
Size
57KB
-
MD5
92777caee4500fd51c45f28309c86400
-
SHA1
a14bddba1c53a0dc74200fe788f10b4d1f026c38
-
SHA256
267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9
-
SHA512
4e1b8dca0f91b04a1ea7825b83a7498134560af15454e3cc46bb14c16ddb613cfa53d5a2ad97acb68961479a0b914b4b0e53e9a939988654c9e3dc2b3c9e1f5a
-
SSDEEP
1536:amZ+4hcuX5uZ79jmvFQTXnz9yQ/PFBhl1LgU:amZ+luXwy2f9LDhDLgU
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
Signatures
-
Urelas family
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe -
Executes dropped EXE 1 IoCs
Processes:
biudfw.exepid Process 3368 biudfw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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.exe267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exebiudfw.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exedescription pid Process procid_target PID 5040 wrote to memory of 3368 5040 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe 90 PID 5040 wrote to memory of 3368 5040 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe 90 PID 5040 wrote to memory of 3368 5040 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe 90 PID 5040 wrote to memory of 2384 5040 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe 91 PID 5040 wrote to memory of 2384 5040 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe 91 PID 5040 wrote to memory of 2384 5040 267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe"C:\Users\Admin\AppData\Local\Temp\267efb72ec4589473983bc5aa961422ea6b25a63692451376c9dc78e22c93df9N.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5040 -
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:3368
-
-
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:2384
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
57KB
MD57b9fdfd9ec1c0d62588414d03c0652ab
SHA1fbfa2569a36c0e2acc0d5f00f9b2561f590d1c79
SHA256a866f49ea9bb76e2e6f65886061f94048c4684d15d169c6b4ab95da1c66b9f9a
SHA512761cb9b6437b83b7a118d8b0a17fc50137ba4fd19472a7a3236e9ba522935816e83bbf325907c196b7f4b60aceb8eeef4dae6eab0d90f513d9fbc7608c5dad00
-
Filesize
512B
MD526625b4ca7658f7ba4dc7d982782323c
SHA1574aa314998c39e683675ccf457b0305341a4aaf
SHA256c494e0ffeee72023dac244366c08072f677ba328ba805f9e480abc2824e99283
SHA5125a9af4c6be10240dec0d33b37bc6f6836f1db5d0a2a9dd158d63848a8a97dad68e2d9217aca2b2d1cf122d9534aba0d23b247f6686c4ff934bd7035a927d9b9d
-
Filesize
340B
MD583216fa7c3a8fbc7b3d9ee51e34f1f01
SHA1daaad735ac904d587a2f5a0ad5e1fb5d479429b7
SHA25686195fc0bec550aa4abb97244154862f8bd3b970e678850305b12d2786b30f1b
SHA512d11273f59ed60098b2ffae4945cf8766061f4913b0fc15ddf188d53de9f9b74348598fa4dd3e6aaebcf81f2cd3f53c4d61456b25e28ca341f11d8b2bd56d1493