2128c03869796df33521dd428c3d955f71c58ad16f77df4d2ce1013b2baa76cf

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/07/2026, 05:53

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General

Target
2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe
Size 593KB
Sample260728-gla5aazwfx
SHA256 2128c03869796df33521dd428c3d955f71c58ad16f77df4d2ce1013b2baa76cf
MD5 3928fd91d1ebda4c8eb6114e643a9734
SHA1 bc6a5cbc0440031d74331b35cd52f3d626f6e18f
SHA512 217a50b6e5ac07183aa43397f19a613873f51251613fe0061fc5b550ca11dc539f51ef481d94811b7bef59368fdaeb731ac4c38bde3de944178ee13c9e628fe4
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAS:aqzw2wsEDbZ67fpLyUB/5qLlz
TLSH
T118D4AD13B2E4C855E1A22A72CC7667F0DEF5BED4D9358A1F5F803A0D2933E00A6157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

bootkit discovery execution persistence spyware stealer upx

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 5 IoCs

resource	yara_rule
behavioral2/memory/1224-10-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1224-11-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1224-14-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1224-16-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1224-19-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4836-0-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/memory/4836-2-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/files/0x000800000001b871-3.dat	UPX
behavioral2/memory/2280-7-0x0000000000400000-0x000000000048B000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2280	ipadds.exe

Executes dropped EXE 2 IoCs

pid	Process
2280	ipadds.exe
1224	reygktrmu.exe

Loads dropped DLL 1 IoCs

pid	Process
1224	reygktrmu.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\dtfd = "c:\\Program Files\\upwax\\reygktrmu.exe \"c:\\Program Files\\upwax\\reygktrmu.dll\",DoAddToFavDlg"	reygktrmu.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\o:	reygktrmu.exe
File opened (read-only)	\??\v:	reygktrmu.exe
File opened (read-only)	\??\w:	reygktrmu.exe
File opened (read-only)	\??\z:	reygktrmu.exe
File opened (read-only)	\??\b:	reygktrmu.exe
File opened (read-only)	\??\x:	reygktrmu.exe
File opened (read-only)	\??\a:	reygktrmu.exe
File opened (read-only)	\??\h:	reygktrmu.exe
File opened (read-only)	\??\m:	reygktrmu.exe
File opened (read-only)	\??\n:	reygktrmu.exe
File opened (read-only)	\??\p:	reygktrmu.exe
File opened (read-only)	\??\t:	reygktrmu.exe
File opened (read-only)	\??\y:	reygktrmu.exe
File opened (read-only)	\??\d:	reygktrmu.exe
File opened (read-only)	\??\g:	reygktrmu.exe
File opened (read-only)	\??\i:	reygktrmu.exe
File opened (read-only)	\??\k:	reygktrmu.exe
File opened (read-only)	\??\q:	reygktrmu.exe
File opened (read-only)	\??\r:	reygktrmu.exe
File opened (read-only)	\??\s:	reygktrmu.exe
File opened (read-only)	\??\u:	reygktrmu.exe
File opened (read-only)	\??\j:	reygktrmu.exe
File opened (read-only)	\??\l:	reygktrmu.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	reygktrmu.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4836-0-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/memory/4836-2-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/files/0x000800000001b871-3.dat	upx
behavioral2/memory/2280-7-0x0000000000400000-0x000000000048B000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\upwax	ipadds.exe
File created	\??\c:\Program Files\upwax\reygktrmu.dll	ipadds.exe
File created	\??\c:\Program Files\upwax\reygktrmu.exe	ipadds.exe

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
5860	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipadds.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reygktrmu.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5860	cmd.exe
4668	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	reygktrmu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	reygktrmu.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4668	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1224	reygktrmu.exe
1224	reygktrmu.exe
1224	reygktrmu.exe
1224	reygktrmu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	reygktrmu.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4836	2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe
2280	ipadds.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 5860	4836	2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe	88
PID 5860 wrote to memory of 4668	5860	cmd.exe	90
PID 5860 wrote to memory of 2280	5860	cmd.exe	91
PID 2280 wrote to memory of 1224	2280	ipadds.exe	92

C:\Users\Admin\AppData\Local\Temp\2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ipadds.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5860
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4668
- - C:\Users\Admin\AppData\Local\Temp\ipadds.exe
    C:\Users\Admin\AppData\Local\Temp\\ipadds.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-28_3928fd91d1ebda4c8eb6114e643a9734_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2280
  - - \??\c:\Program Files\upwax\reygktrmu.exe
      "c:\Program Files\upwax\reygktrmu.exe" "c:\Program Files\upwax\reygktrmu.dll",DoAddToFavDlg C:\Users\Admin\AppData\Local\Temp\ipadds.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1224

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

reygktrmu.exe

Path C:\Program Files\upwax\reygktrmu.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ipadds.exe

Path C:\Users\Admin\AppData\Local\Temp\ipadds.exe
Size 593KB
SHA256 e3ec7fa89013f79ceba29d69056b5fa558f4d710821bd6fa48b3c1eee2cb1d32
MD5 8f4629318cf053e99d169e07f902713b
SHA1 f51c5fe6a2103c0a5fa7d7b367dcd10c7f2e0523
SHA512 c79f8d682f9f1a44e231b3f54d90458143582d6fb1d584efa2f36a590fef17c9620cf82fe4a0ec7c0a7b56a9834f5a0d0c895d41fe14379db138eb2e44fa7db1
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAC:aqzw2wsEDbZ67fpLyUB/5qLlJ
TLSH
T189D4AD13B2E4C855E1A22A72CC7667F0DEF5BED4D9358A1F5F803A0D2933E00A6157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

reygktrmu.dll

Path \??\c:\Program Files\upwax\reygktrmu.dll
Size 171KB
SHA256 a878ba8e38e16aa8039a6882a32ba5cecbd4bf8a328dbaf2bc95531267fce8ea
MD5 9e9cecce7f1b36843eaf135e1c9b5f9b
SHA1 1bc7a10b073aea88d55f9da3a7bc29cff2514e31
SHA512 88206cadaa985124c6db45bf1e2cb0e2f195b53080354f1fa23714ed6467d1f9db4ba711243e57b20cca77877376a6325e7074b25c6441219402f226bec565aa
SSDEEP 3072:R2Iz9CI8mUOtDDPwLkBLXLDFkKmvzXBpLHYmmO1QezRd7UcPa1xMjM7B:Rjz9X8mXGUXVPmr9mOzRd7UcPKoMF
TLSH
T1D60412B0F3F98759F0A716770831597CC97639826329237FC2885A6EAC5442FF18D764
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1224-12-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1224-13-0x0000000002DE0000-0x0000000002DE2000-memory.dmp

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memory/1224-10-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1224-11-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1224-14-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1224-16-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/1224-19-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/2280-7-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/4836-2-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/4836-0-0x0000000000400000-0x000000000048B000-memory.dmp

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