urelas | 42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4

Analysis

max time kernel
101s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2024, 16:12

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General

Target
42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe
Size 79KB
Sample241017-tnzxmsteme
SHA256 42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4
MD5 92d6e1e2b8bc980b2094e6786c0292a0
SHA1 ceeafcf82e0ffdc9f31f99511df177efc7052e83
SHA512 dbd2a6ad9e02a4c8ecc44832b56f282284bee42ccb747dc9c7df300a9b6553aeebf7197e4f5278cd5a8db9a9aa6020bf26b4f08b23ec6b2a30d31195719d3632
SSDEEP 1536:9HxkDvWdB7O9dKymMyCMGni2Lz1LaRQLDEr7:9RkjWjK9ABpGzlaRQLe7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

urelas discovery trojan upx

Malware Config

Extracted

Family

urelas

218.54.47.77
218.54.47.74

Signatures

Urelas
Urelas is a trojan targeting card games.
trojan 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	huter.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2900-0-0x0000000000390000-0x00000000003C1000-memory.dmp	upx
behavioral2/files/0x0008000000023ca9-6.dat	upx
behavioral2/memory/4664-13-0x0000000000D00000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/2900-18-0x0000000000390000-0x00000000003C1000-memory.dmp	upx
behavioral2/memory/4664-21-0x0000000000D00000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/4664-23-0x0000000000D00000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/4664-25-0x0000000000D00000-0x0000000000D31000-memory.dmp	upx

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	huter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 4664	2900	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe	89
PID 2900 wrote to memory of 4664	2900	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe	89
PID 2900 wrote to memory of 4664	2900	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe	89
PID 2900 wrote to memory of 4272	2900	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe	91
PID 2900 wrote to memory of 4272	2900	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe	91
PID 2900 wrote to memory of 4272	2900	42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe	91

C:\Users\Admin\AppData\Local\Temp\42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe
"C:\Users\Admin\AppData\Local\Temp\42b61e69f8a9cc3b58e67dbd71b86fdec03c24bfb4a4f3af4b02d370802e18f4N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\huter.exe
  "C:\Users\Admin\AppData\Local\Temp\huter.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4664
- 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:4272

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

golfinfo.ini

Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
Size 512B
SHA256 5cfd1668ec0e5f3b5f8d04e54091d6f173bede6e6f9bb418819fd550095139fb
MD5 55d2fdd1432483e3ba86ebeccfe130b6
SHA1 7280b14d708800fd15303b2caa8628a0fbd7aa08
SHA512 36fd81128552356672b52936699c5e6362268c8131857e778e02a6862600c4feb20d13063d5f838e0887cb5083c648d39fe07faffba18c26387760752f9dd1f3
MD5 SHA1 SHA512

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huter.exe

Path C:\Users\Admin\AppData\Local\Temp\huter.exe
Size 79KB
SHA256 cb5f5bf939699762410ea252e3791d26cf382ece5a0fcc590a9d9b2465da7026
MD5 4df2085b05fe0e11d69ff6f2e993a0e1
SHA1 cd188567f90fb6dbda3bbfcf4cb60fb22485dd2d
SHA512 97ea181b316cdde903ec5d7753c504c46e3fa8d130839205bf87cc81577b5c08402f04db76be5ffc6742c8d412b0df33eeac4b8604c4bf5225003a40ee73a73a
SSDEEP 1536:9HxkDvWdB7O9dKymMyCMGni2Lz1LaRQLDErt:9RkjWjK9ABpGzlaRQLet
MD5 SHA1 SHA512 SSDEEP

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sanfdr.bat

Path C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
Size 340B
SHA256 4a372ddd912c10c7a61264f105e1537d0821b1e9eadbff6c3eb9c9a2a6b58e38
MD5 1aa16d8aa67ca070c994f137ad36a239
SHA1 9224100fb8e25a2489bff0105c62b3702ceefc5d
SHA512 3ff8387aade42204abb1a514443873bc62dd8714f9cb407797f0e99462fdc6782c6af0f34dfea7dc6ab6077c87d6c0515cab72b5335c9f7b90eeb883eb03a557
MD5 SHA1 SHA512

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memory/2900-0-0x0000000000390000-0x00000000003C1000-memory.dmp

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memory/2900-18-0x0000000000390000-0x00000000003C1000-memory.dmp

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memory/4664-13-0x0000000000D00000-0x0000000000D31000-memory.dmp

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memory/4664-21-0x0000000000D00000-0x0000000000D31000-memory.dmp

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memory/4664-23-0x0000000000D00000-0x0000000000D31000-memory.dmp

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memory/4664-25-0x0000000000D00000-0x0000000000D31000-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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Downloads