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

Deletes itself 1 IoCs

pid	Process
2892	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1532	biudfw.exe

Loads dropped DLL 1 IoCs

pid	Process
2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.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	biudfw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 1532	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	28
PID 2296 wrote to memory of 1532	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	28
PID 2296 wrote to memory of 1532	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	28
PID 2296 wrote to memory of 1532	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	28
PID 2296 wrote to memory of 2892	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	29
PID 2296 wrote to memory of 2892	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	29
PID 2296 wrote to memory of 2892	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	29
PID 2296 wrote to memory of 2892	2296	4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe	29

C:\Users\Admin\AppData\Local\Temp\4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe
"C:\Users\Admin\AppData\Local\Temp\4c8b83c5f240edc8cc09e42b226c7436486736e4c611dc3f546e734585fbf3c7.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- 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:1532
- 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:2892

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

Filesize
57KB

MD5
86f1707c75b479413d53a50456bcdb38

SHA1
5d18c8038e0f1fb518b94a0f7ec7ff327f337493

SHA256
84413c71e5ca76700a16f867b07b22a542c324b6ab804af12faba60e28e4ab14

SHA512
72b9362240132533fd09bbc851054f85208656420fe5add816dd4d31ae75e72d1aea9766b2ed436905b90bd2181bf6330b46942ec0207ac635b4eea973d60634

Download Submit
memory/1532-10-0x0000000000060000-0x0000000000085000-memory.dmp

Filesize
148KB

Download
memory/1532-22-0x0000000000060000-0x0000000000085000-memory.dmp

Filesize
148KB

Download
memory/1532-24-0x0000000000060000-0x0000000000085000-memory.dmp

Filesize
148KB

Download
memory/1532-30-0x0000000000060000-0x0000000000085000-memory.dmp

Filesize
148KB

Download
memory/2296-0-0x0000000000C20000-0x0000000000C45000-memory.dmp

Filesize
148KB

Download
memory/2296-7-0x0000000000770000-0x0000000000795000-memory.dmp

Filesize
148KB

Download
memory/2296-19-0x0000000000C20000-0x0000000000C45000-memory.dmp

Filesize
148KB

Download

Analysis

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