a3b0f9220cfcae895509b625b194309dd03a66ecaffc928c67f04e44943c9398

General

Target
2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe
Size 111KB
Sample260421-2nb5ksds8n
SHA256 a3b0f9220cfcae895509b625b194309dd03a66ecaffc928c67f04e44943c9398
MD5 fe7e182a245ac6299b76e1754d540770
SHA1 0e41bb32975923af32e681715d5911a42be67bbf
SHA512 550c95335305c54ea0bfa89ce1f076126c588cac30d54d2f7bc1634e64ce382afcbec40a3b9415670dbcf3de6d52936d918bd7a0e960e3e243f21806b00871e5
SSDEEP 1536:ELNIW39SaZTbFARlq7jC1OZstZu0TSVEdUJWTWd18fi:ELlbZTZX3BAtTSVEdUJWTWd18fi
TLSH
T165B37E12B690C873E19209354469C3738E7EBD3266B8D9877B9807EB1E707D06B3931B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral2/memory/928-0-0x0000000000B90000-0x0000000000BAC000-memory.dmp	UPX
behavioral2/files/0x001d00000002b2f0-3.dat	UPX
behavioral2/memory/4288-4-0x00000000000E0000-0x00000000000FC000-memory.dmp	UPX
behavioral2/memory/928-6-0x0000000000B90000-0x0000000000BAC000-memory.dmp	UPX
behavioral2/memory/4288-7-0x00000000000E0000-0x00000000000FC000-memory.dmp	UPX
behavioral2/memory/928-8-0x0000000000B90000-0x0000000000BAC000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
4288	guifx.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3119821332-640943685-2562343641-1000\Software\Microsoft\Windows\CurrentVersion\Run\Graphics = "\"C:\\ProgramData\\Graphics\\guifx.exe\" /run"	2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/928-0-0x0000000000B90000-0x0000000000BAC000-memory.dmp	upx
behavioral2/files/0x001d00000002b2f0-3.dat	upx
behavioral2/memory/4288-4-0x00000000000E0000-0x00000000000FC000-memory.dmp	upx
behavioral2/memory/928-6-0x0000000000B90000-0x0000000000BAC000-memory.dmp	upx
behavioral2/memory/4288-7-0x00000000000E0000-0x00000000000FC000-memory.dmp	upx
behavioral2/memory/928-8-0x0000000000B90000-0x0000000000BAC000-memory.dmp	upx

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	2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	guifx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 928 wrote to memory of 4288	928	2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe	79
PID 928 wrote to memory of 2472	928	2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:928
- C:\ProgramData\Graphics\guifx.exe
  "C:\ProgramData\Graphics\guifx.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4288
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\2026-04-21_fe7e182a245ac6299b76e1754d540770_coinminer_elex_redline-stealer_rhadamanthys_rifdoor_smoke-loader_stealc.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2472

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

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

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Downloads

guifx.exe

Path C:\ProgramData\Graphics\guifx.exe
Size 111KB
SHA256 05c287a5e68194e124a7eddda84a83562dd5b4f37ddfdefcb919ad25c6668a53
MD5 5a600cc465997525b7eac91db1f6450a
SHA1 38ff8980a9ca4ff441362bde197c346b5fc19130
SHA512 d416563a1f8bb1e704d1167784ca36142900b15f7091e824cc175def283adbd062153d63cc0cdf18c6efde339ad11b0bba1f9a5ed542d57bf5760df8437965ca
SSDEEP 1536:ELNIW39SaZTbFARlq7jC1OZstZu0TSVEdUJWTWd18f5:ELlbZTZX3BAtTSVEdUJWTWd18f5
TLSH
T15EB37E12B690C873E19209354469C3738E7EBD3266B8D9877B9807EB1E707D06B3931B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/928-0-0x0000000000B90000-0x0000000000BAC000-memory.dmp

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memory/928-6-0x0000000000B90000-0x0000000000BAC000-memory.dmp

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memory/928-8-0x0000000000B90000-0x0000000000BAC000-memory.dmp

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memory/4288-4-0x00000000000E0000-0x00000000000FC000-memory.dmp

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memory/4288-7-0x00000000000E0000-0x00000000000FC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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