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
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2104 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

biudfw.exe

pid process

2108 biudfw.exe
Loads dropped DLL 1 IoCs

Processes:

a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

pid process

2440 a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

pid	process
2104	cmd.exe

pid	process
2108	biudfw.exe

pid	process
2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2440-0-0x00000000003D0000-0x00000000003FC000-memory.dmp	upx
behavioral1/memory/2440-18-0x00000000003D0000-0x00000000003FC000-memory.dmp	upx
behavioral1/memory/2108-17-0x00000000000B0000-0x00000000000DC000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\biudfw.exe	upx
behavioral1/memory/2108-21-0x00000000000B0000-0x00000000000DC000-memory.dmp	upx
behavioral1/memory/2108-24-0x00000000000B0000-0x00000000000DC000-memory.dmp	upx
behavioral1/memory/2108-31-0x00000000000B0000-0x00000000000DC000-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 8 IoCs

Processes:

a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

description	pid	process	target process
PID 2440 wrote to memory of 2108	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	biudfw.exe
PID 2440 wrote to memory of 2108	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	biudfw.exe
PID 2440 wrote to memory of 2108	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	biudfw.exe
PID 2440 wrote to memory of 2108	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	biudfw.exe
PID 2440 wrote to memory of 2104	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	cmd.exe
PID 2440 wrote to memory of 2104	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	cmd.exe
PID 2440 wrote to memory of 2104	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	cmd.exe
PID 2440 wrote to memory of 2104	2440	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe
"C:\Users\Admin\AppData\Local\Temp\a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- 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:2108
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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\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

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

Filesize
59KB

MD5
f4863726c0d78d1a936822dfc777c137

SHA1
79afb7f5be6c7f58a81ef1495257837dcd81322b

SHA256
295a7becaf1c1a626422c67799ca0eba8697b5292c28bff9a9402e0f8be75962

SHA512
37346323bd9fd947a8fa6cd8e0b03ba018d603605af56985e63d39c068a96c2570c762fd646aae890aa9d7340af240468b30f5e09d58a8b047fb090fb3ba1b07

Download Submit
memory/2108-17-0x00000000000B0000-0x00000000000DC000-memory.dmp

Filesize
176KB

Download
memory/2108-21-0x00000000000B0000-0x00000000000DC000-memory.dmp

Filesize
176KB

Download
memory/2108-24-0x00000000000B0000-0x00000000000DC000-memory.dmp

Filesize
176KB

Download
memory/2108-31-0x00000000000B0000-0x00000000000DC000-memory.dmp

Filesize
176KB

Download
memory/2440-0-0x00000000003D0000-0x00000000003FC000-memory.dmp

Filesize
176KB

Download
memory/2440-18-0x00000000003D0000-0x00000000003FC000-memory.dmp

Filesize
176KB

Download
memory/2440-16-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads