urelas | 3da41a2d336a118b18f300025f0277b0e8eb11e6ddcf27681f7fba975c4b1066

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 03:39

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General

Target
8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe
Size 60KB
Sample240902-d7wrbs1grf
SHA256 8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995
MD5 68b8c481947f5796977b3148b02db382
SHA1 16498dee2ba1302c471c0235e98f331b1e68e448
SHA512 6043083a313a384fa604147eca46ca4823e4fde842fa94daa9e1be3337c9f782a6ebdcd131916b4c451a8a38ac5d22753a6f833e2214175966d14a3e97f8c976
SSDEEP 768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPb:nK0GjMeQG3iaQREuVZ6ro29p4YxbKd2
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

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe

Executes dropped EXE 1 IoCs

pid	Process
5016	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	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.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 1332 wrote to memory of 5016	1332	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe	89
PID 1332 wrote to memory of 5016	1332	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe	89
PID 1332 wrote to memory of 5016	1332	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe	89
PID 1332 wrote to memory of 4844	1332	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe	90
PID 1332 wrote to memory of 4844	1332	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe	90
PID 1332 wrote to memory of 4844	1332	8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe	90

C:\Users\Admin\AppData\Local\Temp\8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe
"C:\Users\Admin\AppData\Local\Temp\8ee5373dd2e9bf3a9db9d3e78c294389a4733a201cf54c37b4c5376687bfe995.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1332
- 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:5016
- 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:4844

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 60KB
SHA256 28e36e66868f41e20470c3f272014c5096b8194dd689f7305725a16136b6a98b
MD5 1cf12cb29524b0d4e3b57f475eeebd0d
SHA1 ebc637b3d8992ae6cb55871c70214bcb2b125dee
SHA512 728774323b7a54d475458cfcd6ba3a856a0aaae9ddfeec5ee0b0c4fb8ef509986e1da7d546aae6e0d104ed030b355b5a0ece71fc118fd83d450e1f9f4c407640
SSDEEP 768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPy:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdR
MD5 SHA1 SHA512 SSDEEP

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golfinfo.ini

Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
Size 512B
SHA256 a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
MD5 55e10a9af74d3f3fa5ae3cb7ff5ad9d4
SHA1 449221fd8d7196a54de2bd583625d8d1b64db56a
SHA512 4af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a
MD5 SHA1 SHA512

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sanfdr.bat

Path C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
Size 338B
SHA256 e0eb421fe1549795e597c963c08448f5d53ac6494ddad22a789a77e093958034
MD5 ddf68d72c9fea86189defcb2873f2ac3
SHA1 dec07d61222c0792c681f2af7a7c40cdeb21443e
SHA512 2fa976e32cbc7825b37f41f9b7763b1a6b8a01e9ad30f266fcd6ec6191d888496106b8fd899728be8dc91aa223576d84786c30efda2cbe949d10d7a6985d285f
MD5 SHA1 SHA512

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memory/1332-0-0x00000000001A0000-0x00000000001D5000-memory.dmp

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memory/1332-13-0x00000000001A0000-0x00000000001D5000-memory.dmp

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memory/5016-16-0x00000000001A0000-0x00000000001D5000-memory.dmp

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memory/5016-18-0x00000000001A0000-0x00000000001D5000-memory.dmp

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memory/5016-25-0x00000000001A0000-0x00000000001D5000-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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