urelas | 4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7

General

Target

4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe
Size

57KB
MD5

a5c13234f79cb73a87fa089ce87bad5c
SHA1

3c97530bbf57d3e288a7d167e278814671ce7d46
SHA256

4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7
SHA512

018a49fc6af84b7cdc030810d986f2af50c493aaad01c98b021d8e2485f8b1d1706c903234746aab497a6639d507d00c9fcd9483b3836296583acd8b0d0c59cb
SSDEEP

768:6b4zb59Yix/RoyH+5flZirYqc97vFvrpaZG3DHvTdA9GgnOuS5ZFYycKZpFZx5Er:6bQx5oPsr2vFxDPhAvzgAQzFZ77k

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

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:

4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe

Executes dropped EXE 1 IoCs

Processes:

biudfw.exe

pid	Process
1936	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:

cmd.exe4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.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	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe

description	pid	Process	procid_target
PID 4208 wrote to memory of 1936	4208	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	88
PID 4208 wrote to memory of 1936	4208	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	88
PID 4208 wrote to memory of 1936	4208	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	88
PID 4208 wrote to memory of 1488	4208	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	89
PID 4208 wrote to memory of 1488	4208	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	89
PID 4208 wrote to memory of 1488	4208	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	89

C:\Users\Admin\AppData\Local\Temp\4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe
"C:\Users\Admin\AppData\Local\Temp\4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4208
- 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:1936
- 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:1488

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
57KB

MD5
74a7cdfbda0cfef792f827a042069705

SHA1
c4a492008e6c0ad2a18bbe89a183d6a8ee82c9ad

SHA256
f0f91db375917f6bec9bf40fcd2aa89c01b4511ebaeb4e1f1e5da785eeba8a80

SHA512
536a7e89f9248f3e8441bf815b03c34f1eaa75195935f1772e7c3621fd24f966f60c433f2e6fd9cac00a99e230575a060e2e112a0f0c4c06fdf885953525256e

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

Filesize
512B

MD5
efd90b3ac908d5482af367de3a82184a

SHA1
de9f01d2ed0247b7b347e55c5a09721a60147fb9

SHA256
44f3db1bb73bb207a88008ae28d0399f888b5714ccccb2056f4148b4455e693d

SHA512
6e3355f895af1d81887d5750033c5a139e4a0e1c2c928aeef1fd37f9c191e754b1f524d252c229ea5e744dbef4dd0a8240d9d3443651d42de198e82a197afb02

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

Filesize
338B

MD5
afe59c446db342e3e1a346df4677504f

SHA1
5dc7433f3cd9bb9d08a203fba2a6bca624471c16

SHA256
826ed759baaf546520f76b015f556824c1af8cc38b4935cba2894e5e75aaa23c

SHA512
443952fd0dc100cb60a5f65e8c715ff3d20f3f544adeafc8f9a088d3f6c4779e0eb12ca67624008557b38074eb5fb766078a1dab93f620de2d4bf88789c2b431

Download Submit
memory/1936-13-0x0000000000B00000-0x0000000000B25000-memory.dmp

Filesize
148KB

Download
memory/1936-21-0x0000000000B00000-0x0000000000B25000-memory.dmp

Filesize
148KB

Download
memory/1936-23-0x0000000000B00000-0x0000000000B25000-memory.dmp

Filesize
148KB

Download
memory/1936-30-0x0000000000B00000-0x0000000000B25000-memory.dmp

Filesize
148KB

Download
memory/4208-0-0x0000000000FE0000-0x0000000001005000-memory.dmp

Filesize
148KB

Download
memory/4208-18-0x0000000000FE0000-0x0000000001005000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads