stealc | 43e2aa8f929aee4c853f5d8427579ae151d9fe6ca5b9e71905eaac69036d23d6

Analysis

max time kernel
150s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
15/09/2026, 18:09

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General

Target
2026-09-15_54b639c5727c2b9dfbd604537bcd0c73_elex_glassworm_rhadamanthys_stealc_stop.exe
Size 1.3MB
Sample260915-wrh5eayzhy
SHA256 43e2aa8f929aee4c853f5d8427579ae151d9fe6ca5b9e71905eaac69036d23d6
MD5 54b639c5727c2b9dfbd604537bcd0c73
SHA1 411ba61dc1c0cf6bb6b33916fead1e783ae4ad31
SHA512 b4f82ececf153084f78a01a6e65ba50fb65d7b1340cccd3467821dc8dfda87a4050f76a6038f181c38dd307e4d6224a1017e87211661e54a3b0d7187e10b11ca
SSDEEP 12288:++GtVfjTQSaoINAHT1VQ1i3SyQEW85gMer5+nsL1Jer5+nkA1Yaner5+nZ:+rt4/NArwjs5pAVf
TLSH
T1FC551753E7818AE8E75D05365B148150922EFD21AA8F6315B86C362CCF733879F66E3C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution stealc urelas stealer trojan

Malware Config

Extracted

Family

urelas

218.54.31.226
218.54.31.165

Signatures

Family: Stealc
Stealc is an infostealer written in C++.
stealer stealc
Family: Urelas
Urelas is a trojan targeting card games.
trojan urelas

Detects Stealc stealer Version 3 1 IoCs

resource	yara_rule
behavioral2/memory/5772-21-0x0000000000A60000-0x0000000000BB7000-memory.dmp	family_stealc_v3

Executes dropped EXE 2 IoCs

pid	Process
4684	dudyz.exe
1156	rynej.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1312	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5268	1156	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 4 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	rynej.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-15_54b639c5727c2b9dfbd604537bcd0c73_elex_glassworm_rhadamanthys_stealc_stop.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dudyz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5772 wrote to memory of 4684	5772	2026-09-15_54b639c5727c2b9dfbd604537bcd0c73_elex_glassworm_rhadamanthys_stealc_stop.exe	87
PID 5772 wrote to memory of 1312	5772	2026-09-15_54b639c5727c2b9dfbd604537bcd0c73_elex_glassworm_rhadamanthys_stealc_stop.exe	88
PID 4684 wrote to memory of 1156	4684	dudyz.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-09-15_54b639c5727c2b9dfbd604537bcd0c73_elex_glassworm_rhadamanthys_stealc_stop.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-15_54b639c5727c2b9dfbd604537bcd0c73_elex_glassworm_rhadamanthys_stealc_stop.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5772
- C:\Users\Admin\AppData\Local\Temp\dudyz.exe
  "C:\Users\Admin\AppData\Local\Temp\dudyz.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4684
- - C:\Users\Admin\AppData\Local\Temp\rynej.exe
    "C:\Users\Admin\AppData\Local\Temp\rynej.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1156
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1156 -s 240
      4⤵
      Program crash
      PID:5268
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:1312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1156 -ip 1156
1⤵
PID:108

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

_uinsey.bat

Path C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
Size 378B
SHA256 831a421edda89a95ebf1b903f941f20b70b7639c08141ef6eafb08819951c210
MD5 072cf08d49cf39ff7103eeeab99ffe15
SHA1 77795484d8e0ac75fc220ee452edcb7aa2b962cc
SHA512 1fc122d1d1a241d2e074a5142b791ed4b172eaaf319f23cea9195dae24a32bce2d22bfbac123e5a59f0229c69bea3427b79c160cdb234869e17ff69e749847b6
TLSH
T12AE0D800556E8B6A001C902F05B5778C80B2B9ECAF8A2F40A730CA4E229A84E75D6612
MD5 SHA1 SHA512 TLSH

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dudyz.exe

Path C:\Users\Admin\AppData\Local\Temp\dudyz.exe
Size 1.3MB
SHA256 4f3353864565e76bf821006fe4db98a2460134a2db2fffc9df9a7406221a56d3
MD5 926d5ad1cea334c9233df798eb08b85d
SHA1 f1643e5519a2f96bcd780311f8c5df50d0c35551
SHA512 a49d67b0ddcd8a6d7f2eb7b417b82e5f65e0510626074551eb2301ada8e1cca82f8a62020b667fafbf98fd865ad0786f6f347e92fe7fdfd0980db6b42ff289ad
SSDEEP 12288:++GtVfjTQSaoINAHT1VQ1i3SyQEW85gMer5+nsL1Jer5+nkA1Yaner5+ne:+rt4/NArwjs5pAVE
TLSH
T1C7551753E7818AE8E75D05365B148150922EFD21AA8F6315B86C362CCF733879F66E3C
MD5 SHA1 SHA512 SSDEEP TLSH

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golfinfo.ini

Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
Size 512B
SHA256 5d17a0ba6596ba49cd38ba8562040bed4613cd3d0c799c6c3ae9370ac83ca609
MD5 dea7029c797fc600a417923b001c858b
SHA1 d04f63ce180d785fe8dacc6c2c08253530cb3141
SHA512 ccf3849cb3005cb7e7f93c5e76db136a6cafa3e22aa551bfd65bdac4f41ee9d5276a55a6005deef3bebeb1de73452b8c8a7918f7c784aabe290052e28a7d8a14
TLSH
T11DF09BD120F5B0457715F727C3D4079A23E34E441F539C90050D763169B7C7C9454357
MD5 SHA1 SHA512 TLSH

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rynej.exe

Path C:\Users\Admin\AppData\Local\Temp\rynej.exe
Size 231KB
SHA256 f6923d419ad69a9a2fb1aad97c8e661ff21aeb4064c7c663d50df91042e9799a
MD5 b7b323f642c1c29af6d5a395804fee87
SHA1 1a8b6936660fc2aa1d89555919a14aa873b067d0
SHA512 b80df59fe523f461d269751a092720b670ddc07b86d744e7d2ac2246354a81061a88b5abd9bf36e25bb8705519ac5711222363e1a896ef379df9362c4bdd5c4e
SSDEEP 3072:ack4sHDj+8L5cTMOdi5/TYSPXXUv4G4Y8oQIN3C9ISE0qJiNlUdpicx:z6r5cTfS/ZPHUWoQISzqJBpicx
TLSH
T10834E06266004895F76E0F311ADBFAE4488A9E3C25D4F58EF43CBE3658321979A3714F
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1156-33-0x0000000000410000-0x00000000004C3000-memory.dmp

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memory/1156-36-0x0000000000410000-0x00000000004C3000-memory.dmp

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memory/4684-18-0x000000000059B000-0x000000000059C000-memory.dmp

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memory/4684-12-0x0000000000570000-0x00000000006C7000-memory.dmp

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memory/4684-24-0x0000000000570000-0x00000000006C7000-memory.dmp

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memory/4684-35-0x0000000000570000-0x00000000006C7000-memory.dmp

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memory/5772-21-0x0000000000A60000-0x0000000000BB7000-memory.dmp

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memory/5772-1-0x0000000000A8B000-0x0000000000A8C000-memory.dmp

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memory/5772-0-0x0000000000A60000-0x0000000000BB7000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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