urelas | 7769945b70a83bcb87ea81756d8f45ae79d898f41ea6d8a9d3374f6a5854e646

Analysis

max time kernel
132s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31/08/2024, 12:01

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General

Target
2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe
Size 60KB
Sample240831-n67sbasbmq
SHA256 2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d
MD5 d3cbab39b753eff3e395e2cbd699a2be
SHA1 c94335d5ddfa4d9bf09c7a05598b7a3a2e9cfc14
SHA512 c5cce948674edb4537a2e45b2758ee0bd6a51b9cd8188e2e3658376e485dc865b7e7470ab0ae3c488b21bb14cab2cdaa909c68d1811af079a4f9a11aa9eee4be
SSDEEP 768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPq:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdl
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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe

Executes dropped EXE 1 IoCs

pid	Process
4260	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 4260	4316	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe	90
PID 4316 wrote to memory of 4260	4316	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe	90
PID 4316 wrote to memory of 4260	4316	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe	90
PID 4316 wrote to memory of 4712	4316	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe	91
PID 4316 wrote to memory of 4712	4316	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe	91
PID 4316 wrote to memory of 4712	4316	2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe	91

C:\Users\Admin\AppData\Local\Temp\2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe
"C:\Users\Admin\AppData\Local\Temp\2bc902701c0d85b05d6fd35b0bb214b84c522d7966075b169bfb4722f60aa99d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- 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:4260
- 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:4712

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 a7c3e359e24f9e5c2188402e9516968dd7accd2cae2f41654c53c620b1dac9de
MD5 792130d26167f8a7461256db36c07175
SHA1 daa4bd2bf28101091a3a113fd41dcdb74791da1e
SHA512 68a84eb70140b04670f201da21c2e65f4a03db4703c2bbcf679f71d3438d0cebdb60887219f46adb5f32b0ad5348d4a0569132d0ec8b0188eb57bc08b36445ee
SSDEEP 768:n5mhew0GpSyMe6hwUkdwJzh+qciaQRENEzxZbARtR06g2wqp4YPeznellmqGwxPF:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdO
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 90589f388f7469f13ee31d128366dfb04e111935c30f761057c49a2d5530e0d9
MD5 7f76406197fc9ac4cc629bf90595642a
SHA1 9385f914403ccd82a94f0eaad9549f27410f7b1d
SHA512 1153a4ab5afe0a063011ea905a10c5614ea51ca9916dcf3d7e4556989c3b3eb93dce06118792f3a2826c80c3c70f34efee47bb54cdd62efc2b2c71a2da3d525e
MD5 SHA1 SHA512

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memory/4260-10-0x00000000004C0000-0x00000000004F5000-memory.dmp

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memory/4260-18-0x00000000004C0000-0x00000000004F5000-memory.dmp

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memory/4260-20-0x00000000004C0000-0x00000000004F5000-memory.dmp

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memory/4260-26-0x00000000004C0000-0x00000000004F5000-memory.dmp

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memory/4316-0-0x0000000000F10000-0x0000000000F45000-memory.dmp

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memory/4316-15-0x0000000000F10000-0x0000000000F45000-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