urelas | 3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540

Analysis

max time kernel
100s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-10-2024 04:08

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General

Target

3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe
Size

137KB
MD5

6796127616ea431168ec9def87121570
SHA1

b757b0db9eb418bc53bc180b89d276219b6cc926
SHA256

3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540
SHA512

7decf2528b6a5e1cec54f879c3d7268b90f0c07ed467b2b0cea7d893e92f6e677b52d0a1ea18313eef3504fa32e1b7de065cc0acde80a39f8006e28bb21d1c5e
SSDEEP

1536:P/oEkqfCZ10zcT9Yh8AIXcjyz9cOXfiXGImcatMrsWjcdf6odgR5APfI3:P/5kqCxiXEcO3XfGf2tMUf6odgR5A43

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

Processes:

3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe

Executes dropped EXE 1 IoCs

Processes:

biudfw.exe

pid	Process
1104	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

Processes:

3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exebiudfw.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.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

Processes:

3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe

description	pid	Process	procid_target
PID 3936 wrote to memory of 1104	3936	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe	88
PID 3936 wrote to memory of 1104	3936	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe	88
PID 3936 wrote to memory of 1104	3936	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe	88
PID 3936 wrote to memory of 2224	3936	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe	89
PID 3936 wrote to memory of 2224	3936	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe	89
PID 3936 wrote to memory of 2224	3936	3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe	89

C:\Users\Admin\AppData\Local\Temp\3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe
"C:\Users\Admin\AppData\Local\Temp\3727ddffbacf1c08dd69ce37e781554c19453dc4ea44e471cf01c160397a8540N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3936
- 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:1104
- 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:2224

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

C:\Users\Admin\AppData\Local\Temp\biudfw.exe

Filesize
137KB

MD5
d38abc45dd38a5601a2176864a784540

SHA1
9fb47b52e2db0f3773f22885f93faf1dac2040b8

SHA256
e4eed93a41c9a9d75038feae5d49a88fda0d4da3e32a879392e1366fca5e761b

SHA512
71ff686ba782788f1105fc9aa3b7806389a208a0d6f030376bab1c90b4a69b4f9552a94c0a109f262068f9597cc05bbdd9f61a07dd70e4ad83954b2428deddd6

Download Submit
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

Filesize
512B

MD5
0ecda9ecaa423d5a8481985b7d3d5a77

SHA1
ecc237c20c234cf9c0e20b39a39ab27244dc7971

SHA256
caed69520592602de846673610507a47e22e0fb108e8e88ba1a85b314607f0a9

SHA512
82ce4bfc411781d187b6151383064f18e22b37f5f03d783476fed1c8ba74ee38dc74b16badf96961e22d6b63ae31425ae785c17fa3bd5d767ae3b0bd9652fe3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat

Filesize
340B

MD5
9566ac7eb0912c47706e3144d89aa7ed

SHA1
74d068e3e0aead59d9610de5365752a0ea4eb351

SHA256
a65a8df0f738aedc624d94ad98f44a4f3f98a94d1dc6415de90cee049ad1cb46

SHA512
8930764f5f3a4dd0b55a75d79c66c60620a71c959b433dedb1938c7ad2e5bc57c320930c8d53ee9a172c5f4a19c5a1ac31b892c6aed826a65720e6ba4f78117d

Download Submit
memory/1104-13-0x0000000000E90000-0x0000000000EB7000-memory.dmp

Filesize
156KB

Download
memory/1104-20-0x0000000000E90000-0x0000000000EB7000-memory.dmp

Filesize
156KB

Download
memory/1104-21-0x0000000000E90000-0x0000000000EB7000-memory.dmp

Filesize
156KB

Download
memory/3936-0-0x0000000000730000-0x0000000000757000-memory.dmp

Filesize
156KB

Download
memory/3936-17-0x0000000000730000-0x0000000000757000-memory.dmp

Filesize
156KB

Download