urelas | 3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2

General

Target

3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe
Size

58KB
MD5

e30124f3022f583eaca0792b61d19ea4
SHA1

f3b2d070018ca69fe6d985bc13fe4aa329d3d43d
SHA256

3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2
SHA512

21c334b42a47faabb905f386339311e935935b988ab94a5c4c40a0e13659364b128c7afd9e1a0c5f372ed36d88ddb3f118537b64cabb68e58728db3d16e28af5
SSDEEP

1536:amZ+4hcuX5uZ79jmvFQTXnz9yQ/PFBhl1lw:amZ+luXwy2f9LDhDlw

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

pid	Process
2800	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	biudfw.exe

Loads dropped DLL 1 IoCs

pid	Process
2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.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	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2804	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	30
PID 2384 wrote to memory of 2804	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	30
PID 2384 wrote to memory of 2804	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	30
PID 2384 wrote to memory of 2804	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	30
PID 2384 wrote to memory of 2800	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	31
PID 2384 wrote to memory of 2800	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	31
PID 2384 wrote to memory of 2800	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	31
PID 2384 wrote to memory of 2800	2384	3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe	31

C:\Users\Admin\AppData\Local\Temp\3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe
"C:\Users\Admin\AppData\Local\Temp\3f1b8766aa4d7bda028f42484807f996e2069d359ecb6280dfdca2c38b8cafe2.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- 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:2804
- 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:2800

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\golfinfo.ini

Filesize
512B

MD5
26625b4ca7658f7ba4dc7d982782323c

SHA1
574aa314998c39e683675ccf457b0305341a4aaf

SHA256
c494e0ffeee72023dac244366c08072f677ba328ba805f9e480abc2824e99283

SHA512
5a9af4c6be10240dec0d33b37bc6f6836f1db5d0a2a9dd158d63848a8a97dad68e2d9217aca2b2d1cf122d9534aba0d23b247f6686c4ff934bd7035a927d9b9d

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

Filesize
338B

MD5
4e0ca801ea2451c715fb0b330ba32a33

SHA1
d4eb291d03edf5072b3f88ea5d63791bb00f7ccc

SHA256
204d7644522905e3c319ea25f1c48ab3d0f33a90e90929f154eeaf94e310959d

SHA512
b8883cb10e568b93703ad8efabb16ee3b02cb23efe86749fc9b62b3acfb86e5b1d0de7056c41620cf30e88d4149734a0b771bea36bcf8f529259f65471252e62

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

Filesize
58KB

MD5
0f9eb809eef6ce58b94d172cb9a57f81

SHA1
f841ea81a5c3786afeebbb7bb4fc4b464d19e49d

SHA256
ede8ce25afa2269b934d33c38cf9b6e340808323741df61387ecdf49a93f21b4

SHA512
cfd1be7e3b0d7265de2ed6e1c0f8d3a236e7e361996ef6ac85b22502a97e99ddc807bb77d3e7e2962e1b566ce3dba523b14ca1c56d6a72756cda5c6aa219a1cd

Download Submit
memory/2384-0-0x0000000001040000-0x0000000001072000-memory.dmp

Filesize
200KB

Download
memory/2384-6-0x0000000000980000-0x00000000009B2000-memory.dmp

Filesize
200KB

Download
memory/2384-18-0x0000000001040000-0x0000000001072000-memory.dmp

Filesize
200KB

Download
memory/2804-21-0x0000000000E40000-0x0000000000E72000-memory.dmp

Filesize
200KB

Download
memory/2804-23-0x0000000000E40000-0x0000000000E72000-memory.dmp

Filesize
200KB

Download
memory/2804-30-0x0000000000E40000-0x0000000000E72000-memory.dmp

Filesize
200KB

Download

Analysis

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