urelas | 98f340c28c2d14c23b3aa318f51896c86c72ba06d5e17166d83d231a43dc5f12

General

Target

a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe
Size

59KB
MD5

79cb9bd23de5cca381777cf2e072fd5c
SHA1

65f7b9b287580fbd94b7fdc85ea92e6fe8265ecc
SHA256

98f340c28c2d14c23b3aa318f51896c86c72ba06d5e17166d83d231a43dc5f12
SHA512

809db0f4a3dd23762dad2d2016da5cf340d6aa9d8b49ea2bdf0da5babc2b01ca214cfb3066bd014e5e6439d2559fe3d9f8e86a8f4a676153404ba9f1e4baed59
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8V:6n25DbaMySmJAhbvoutV

Score

10^/10

urelas discovery trojan upx

Malware Config

Extracted

Family

urelas

C2

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:

a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

Executes dropped EXE 1 IoCs

Processes:

biudfw.exe

pid process

1948 biudfw.exe

pid	process
1948	biudfw.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1180-0-0x0000000000A70000-0x0000000000A9C000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\biudfw.exe	upx
behavioral2/memory/1948-10-0x0000000000A90000-0x0000000000ABC000-memory.dmp	upx
behavioral2/memory/1180-14-0x0000000000A70000-0x0000000000A9C000-memory.dmp	upx
behavioral2/memory/1948-17-0x0000000000A90000-0x0000000000ABC000-memory.dmp	upx
behavioral2/memory/1948-19-0x0000000000A90000-0x0000000000ABC000-memory.dmp	upx
behavioral2/memory/1948-25-0x0000000000A90000-0x0000000000ABC000-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

Processes:

cmd.exea3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exebiudfw.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

description	pid	process	target process
PID 1180 wrote to memory of 1948	1180	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	biudfw.exe
PID 1180 wrote to memory of 1948	1180	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	biudfw.exe
PID 1180 wrote to memory of 1948	1180	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	biudfw.exe
PID 1180 wrote to memory of 4144	1180	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	cmd.exe
PID 1180 wrote to memory of 4144	1180	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	cmd.exe
PID 1180 wrote to memory of 4144	1180	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe
"C:\Users\Admin\AppData\Local\Temp\a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1180
- 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:1948
- 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:4144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
59KB

MD5
02c126afd9fb7aa552c2dbd790b0e3b2

SHA1
41832c9add0c4833cb90767ee462e2bfc0fba93f

SHA256
2a9925a3d111f69a143cb50ca62ab049eebf13f5cd8e8f9af0e65b44d3edb09f

SHA512
70d5be03c5b3b39ec47a977494401faa79851ff21793063a3fd0927625e8a8cc736069ca415d05033749f2eca3fa0c0e760fc0827643bb568df41cf5f09273bc

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

Filesize
512B

MD5
b4a86880004da8726288d7ec954885a8

SHA1
1bab1cfbdc2c540246210bc7852f8fe7e8357b31

SHA256
c85016a9115aeb492bf116ab05791a9c3e6e30c39274767bd0476bd56a37db46

SHA512
22758f6c6de591c99f8f9857c1b03e55c242f0a4987d376b08c30bc608027d1574a228a8230099ddac2a3214663396b016e85d085204155a5ec26f87a28496b4

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

Filesize
340B

MD5
429c3e9c4f0f7e547ad9296968306119

SHA1
02850ffd6cfb523032fa9405b7f9f5504f3a3ad5

SHA256
79027ac5fa5eedb7b2d4088361bbe4fdd2213429113b22875a03b0c41009ca28

SHA512
c0eb6cb01f7949ad1588b317af5a45e5627a47720fca181ed3e406fe5a55635e9a395a8eb50a0867263db511d0c1ec0a630d72de4adfff37d4e3fcbc0e405991

Download Submit
memory/1180-0-0x0000000000A70000-0x0000000000A9C000-memory.dmp

Filesize
176KB

Download
memory/1180-14-0x0000000000A70000-0x0000000000A9C000-memory.dmp

Filesize
176KB

Download
memory/1948-10-0x0000000000A90000-0x0000000000ABC000-memory.dmp

Filesize
176KB

Download
memory/1948-17-0x0000000000A90000-0x0000000000ABC000-memory.dmp

Filesize
176KB

Download
memory/1948-19-0x0000000000A90000-0x0000000000ABC000-memory.dmp

Filesize
176KB

Download
memory/1948-25-0x0000000000A90000-0x0000000000ABC000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads