urelas | 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf

General

Target

41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe
Size

55KB
MD5

a25ddf0fd1ed5c42d60a8b1fd7df0cd1
SHA1

c98951417f3117899f0c63a5097f9fe0a8f4d43d
SHA256

41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf
SHA512

ece28ec1ffff9cfe6d49d8846232606ab2713dd2fc3416bde8ae884297b025165d46899b67a129f05be122a63afd4b120d6f5b3107e11553c3e3ce881e1899de
SSDEEP

1536:qw788avzI+on+TqOK0cHMqtzMLvWsrupwnTf1GqT7E:qwda7KVr0cHneunw1E

Score

10^/10

urelas discovery trojan

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

2572 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

biudfw.exe

pid process

1236 biudfw.exe
Loads dropped DLL 1 IoCs

Processes:

41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe

pid process

800 41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2572	cmd.exe

pid	process
1236	biudfw.exe

pid	process
800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe

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:

biudfw.execmd.exe41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe

description	pid	process	target process
PID 800 wrote to memory of 1236	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	biudfw.exe
PID 800 wrote to memory of 1236	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	biudfw.exe
PID 800 wrote to memory of 1236	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	biudfw.exe
PID 800 wrote to memory of 1236	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	biudfw.exe
PID 800 wrote to memory of 2572	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	cmd.exe
PID 800 wrote to memory of 2572	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	cmd.exe
PID 800 wrote to memory of 2572	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	cmd.exe
PID 800 wrote to memory of 2572	800	41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe
"C:\Users\Admin\AppData\Local\Temp\41cb2ed3a414003a5c88ec6e28131ea28a0395e8ccbe541113e2a3343fddc4bf.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:800
- 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:1236
- 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:2572

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

Replay Monitor

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Downloads

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

Filesize
56KB

MD5
38372839fa41a1570029012b92b3add0

SHA1
ff299c18d5e7822b4662ef4b695be84d293f2d5a

SHA256
ddf7001465dd2731e54da2281a0558c1452ebdae4b6fc72d9836cb6270b8ac4e

SHA512
715037f9edc6ed916ad0048ab41ee0f25defbf9aee7e2fbbfb6abdc74496646f48cfccc47213d0562fd52fb358b1e35e59a26f6aa40c5b3356383474975a73d8

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

Filesize
512B

MD5
0750e4580a3e9076e82bdc6ad33ba927

SHA1
b1e526b3833feda0e3b0738c6865fdac6360bf07

SHA256
74428e568204ea0d1c31570864cb96b1c2b672880f7575220957bf5fc2b24d89

SHA512
303b2cb8e644b336d7bf0892eadc84b414afdc41216719721aa0cf27fc18ecea1a2e943f07813c41d55c4166e489f89ec61a4fcead679ed3de8b323ecb42a8d9

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

Filesize
338B

MD5
06d7bf5c3af0789f97d114be8ae5d33d

SHA1
e9e2969b2fe545dfe2ca056a4a5b1f744f264bf8

SHA256
82274b407242cb4c72fc273a23212f5a71bbc2724cc381beb8e3299831a565b3

SHA512
c8cd2b5f4be0e5365fd1823fc31d6ff012a75f9f0b7e394e0054ff4a0d5316fcfba7be5251b828dbf35020a86a8fcabd0e1e129897cbe890f86e03032542c1cd

Download Submit
memory/800-0-0x0000000000810000-0x0000000000841000-memory.dmp

Filesize
196KB

Download
memory/800-9-0x0000000000490000-0x00000000004C1000-memory.dmp

Filesize
196KB

Download
memory/800-19-0x0000000000810000-0x0000000000841000-memory.dmp

Filesize
196KB

Download
memory/1236-10-0x0000000000010000-0x0000000000041000-memory.dmp

Filesize
196KB

Download
memory/1236-22-0x0000000000010000-0x0000000000041000-memory.dmp

Filesize
196KB

Download
memory/1236-25-0x0000000000010000-0x0000000000041000-memory.dmp

Filesize
196KB

Download
memory/1236-31-0x0000000000010000-0x0000000000041000-memory.dmp

Filesize
196KB

Download

Analysis

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