urelas | 512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892

Analysis

max time kernel
134s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27/10/2024, 17:18

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General

Target
512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe
Size 140KB
Sample241027-vvhsda1bnj
SHA256 512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892
MD5 cd314479dfad507b53e41939db3c2da0
SHA1 d536934b9eec4baacb72dac49cf9bb8ab29127a3
SHA512 7728722fd804d690941c0dc129a2c940f8c92035d079985b5eedba06d9a2d2c6c95d7b59c055c0e057d6160a43a801c7f0e6c4c8ce38c6f9ea6ddc8a76f29f30
SSDEEP 1536:P/oEkqfCZ10zcT9Yh8AIXcjyz9cOXfiXGImcatMrsWjcdf6odgR5APfI4:P/5kqCxiXEcO3XfGf2tMUf6odgR5A44
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

urelas discovery trojan

Malware Config

Extracted

Family

urelas

218.54.47.76
218.54.47.77
218.54.47.74

Signatures

Urelas
Urelas is a trojan targeting card games.
trojan urelas
Urelas family
urelas

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe

Executes dropped EXE 1 IoCs

pid	Process
3012	biudfw.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.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 4064 wrote to memory of 3012	4064	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe	89
PID 4064 wrote to memory of 3012	4064	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe	89
PID 4064 wrote to memory of 3012	4064	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe	89
PID 4064 wrote to memory of 396	4064	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe	90
PID 4064 wrote to memory of 396	4064	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe	90
PID 4064 wrote to memory of 396	4064	512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe	90

C:\Users\Admin\AppData\Local\Temp\512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe
"C:\Users\Admin\AppData\Local\Temp\512b4841312b0df1fbbfacb0340330de82f46ea4e1e92d7dc89871f138ec5892N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4064
- 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:3012
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

biudfw.exe

Path C:\Users\Admin\AppData\Local\Temp\biudfw.exe
Size 140KB
SHA256 cd544c71b516f62e9e7f8a02de36bbda59dba87fd8a1ffe171a2a8e0df611abe
MD5 2c09f5a6acec702c3f7e3bd4bd8cb182
SHA1 e3c6f4e0ec6588f52f0900f6eb78eb30bffa5601
SHA512 09c9d695445c508438d455b2a82bbcd4ab028f762ffc0faf658d55fd125b203c08ae57ee0077fe1071ff27c5c0640a9546e37ffd3114d254a48a0a1e870d059a
SSDEEP 1536:P/oEkqfCZ10zcT9Yh8AIXcjyz9cOXfiXGImcatMrsWjcdf6odgR5APfIb:P/5kqCxiXEcO3XfGf2tMUf6odgR5A4b
MD5 SHA1 SHA512 SSDEEP

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golfinfo.ini

Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
Size 512B
SHA256 caed69520592602de846673610507a47e22e0fb108e8e88ba1a85b314607f0a9
MD5 0ecda9ecaa423d5a8481985b7d3d5a77
SHA1 ecc237c20c234cf9c0e20b39a39ab27244dc7971
SHA512 82ce4bfc411781d187b6151383064f18e22b37f5f03d783476fed1c8ba74ee38dc74b16badf96961e22d6b63ae31425ae785c17fa3bd5d767ae3b0bd9652fe3a
MD5 SHA1 SHA512

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sanfdr.bat

Path C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
Size 340B
SHA256 a7115287e50807adad33a39db73a11e7faf5e62aeda9b6c38c071a852daad3a0
MD5 406d69d196b1c132724ca1576ae4154e
SHA1 a687093a09a7184dc51111828b2ba5e37d7d27dd
SHA512 16be5940cf964b0c22a0e2ddc9895a3b1cb4ee2abf64defebc41c9c448bc92bc56c1f230d89ae3b82482cea2c1797fe5f5ad7ac0bbd2fd0aca5c96995e13bfd3
MD5 SHA1 SHA512

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memory/3012-16-0x0000000000640000-0x0000000000667000-memory.dmp

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memory/3012-20-0x0000000000640000-0x0000000000667000-memory.dmp

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memory/3012-21-0x0000000000640000-0x0000000000667000-memory.dmp

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memory/4064-0-0x0000000000610000-0x0000000000637000-memory.dmp

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memory/4064-17-0x0000000000610000-0x0000000000637000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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