862b8fb40587136cc691b8c17329ef64fe20e228472ebb27e95a96d304e10348

Analysis

max time kernel
150s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 10:16

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General

Target
2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_coinminer_elex_wannacry.exe
Size 587KB
Sample260809-ma2qrawbkb
SHA256 862b8fb40587136cc691b8c17329ef64fe20e228472ebb27e95a96d304e10348
MD5 3ab658f92a6e2e3a91cb41133fea8274
SHA1 24c3c0422e925a70ae254e732134119d729f6900
SHA512 243e848b8123f0a4a27f1b58843ce75c310c01996e8bcbeec3a2c38ecdff3718c38cbf8894ae21abac9beab24406a84aa1f32250c50babd55acc98b6df3b8f38
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAXDG:aqzw2wsEDbZ67fpLyUB/5qLlADG
TLSH
T186D4AD13B2E4C855E1A22A32CC7663B0DEF5BED4D9358A1F5F843A4D2933E00A6157A7
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 6 IoCs

resource	yara_rule
behavioral2/memory/5608-10-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5608-11-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5608-12-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5608-14-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5608-16-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5608-19-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/5364-0-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/memory/5364-2-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/files/0x001000000001b664-3.dat	UPX
behavioral2/memory/4268-7-0x0000000000400000-0x000000000048B000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
4268	nntraexv.exe

Executes dropped EXE 2 IoCs

pid	Process
4268	nntraexv.exe
5608	rri.exe

Loads dropped DLL 1 IoCs

pid	Process
5608	rri.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-1-5-21-2246396966-3025826688-3847171515-1000\Software\Microsoft\Windows\CurrentVersion\Run\dtfd = "c:\\Program Files\\xoserjcb\\rri.exe \"c:\\Program Files\\xoserjcb\\rrina.dll\",DoAddToFavDlg"	rri.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)	\??\w:	rri.exe
File opened (read-only)	\??\x:	rri.exe
File opened (read-only)	\??\j:	rri.exe
File opened (read-only)	\??\m:	rri.exe
File opened (read-only)	\??\q:	rri.exe
File opened (read-only)	\??\v:	rri.exe
File opened (read-only)	\??\y:	rri.exe
File opened (read-only)	\??\z:	rri.exe
File opened (read-only)	\??\b:	rri.exe
File opened (read-only)	\??\d:	rri.exe
File opened (read-only)	\??\k:	rri.exe
File opened (read-only)	\??\l:	rri.exe
File opened (read-only)	\??\s:	rri.exe
File opened (read-only)	\??\t:	rri.exe
File opened (read-only)	\??\g:	rri.exe
File opened (read-only)	\??\i:	rri.exe
File opened (read-only)	\??\n:	rri.exe
File opened (read-only)	\??\u:	rri.exe
File opened (read-only)	\??\a:	rri.exe
File opened (read-only)	\??\h:	rri.exe
File opened (read-only)	\??\o:	rri.exe
File opened (read-only)	\??\p:	rri.exe
File opened (read-only)	\??\r:	rri.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	rri.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5364-0-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/memory/5364-2-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/files/0x001000000001b664-3.dat	upx
behavioral2/memory/4268-7-0x0000000000400000-0x000000000048B000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\xoserjcb	nntraexv.exe
File created	\??\c:\Program Files\xoserjcb\rrina.dll	nntraexv.exe
File created	\??\c:\Program Files\xoserjcb\rri.exe	nntraexv.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
3280	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	2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_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	nntraexv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rri.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
3280	cmd.exe
4688	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	rri.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rri.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4688	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5608	rri.exe
5608	rri.exe
5608	rri.exe
5608	rri.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5608	rri.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5364	2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_coinminer_elex_wannacry.exe
4268	nntraexv.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5364 wrote to memory of 3280	5364	2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_coinminer_elex_wannacry.exe	89
PID 3280 wrote to memory of 4688	3280	cmd.exe	91
PID 3280 wrote to memory of 4268	3280	cmd.exe	92
PID 4268 wrote to memory of 5608	4268	nntraexv.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5364
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\nntraexv.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_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:3280
- - 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:4688
- - C:\Users\Admin\AppData\Local\Temp\nntraexv.exe
    C:\Users\Admin\AppData\Local\Temp\\nntraexv.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_3ab658f92a6e2e3a91cb41133fea8274_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:4268
  - - \??\c:\Program Files\xoserjcb\rri.exe
      "c:\Program Files\xoserjcb\rri.exe" "c:\Program Files\xoserjcb\rrina.dll",DoAddToFavDlg C:\Users\Admin\AppData\Local\Temp\nntraexv.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:5608

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:1392

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

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Downloads

rri.exe

Path C:\Program Files\xoserjcb\rri.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

nntraexv.exe

Path C:\Users\Admin\AppData\Local\Temp\nntraexv.exe
Size 587KB
SHA256 e97aad965b3dba91c755a04f78ce0a428c30df4f24da7d78009dcadf0281eafe
MD5 3bd69a7c8b96eb0db1a17dc61f6e5e71
SHA1 1d4a69c57c5e4dd14090fe2f132c44309f609cba
SHA512 2771152fe782dda6e77eda946e8a28355a266cfdfb10bc8040a368917cd0e9541081e3dd9db017c39d9cebd7f3d5580978fbf5a544765edebc161b3234ea9e13
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAXDU:aqzw2wsEDbZ67fpLyUB/5qLlADU
TLSH
T15ED4AD13B2E4C855E1A22A32CC7663B0DEF5BED4D9358A1F5F843A4D2933E00A7157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

rrina.dll

Path \??\c:\Program Files\xoserjcb\rrina.dll
Size 171KB
SHA256 44f1a13202d76731f37704f6858234a897c220a0cbe9db331191120f425a69dd
MD5 78792ee32352cf1bc35e9992ff378762
SHA1 925265b89b3b4e96e56da632350092e3f2d5133d
SHA512 1e15be27c788f48c03dc8f9b9220fa0f8c68ed1d3fddda006e3315630942a1f72b44e980f5532c4149ad4c0811025af877732bcbd53f84543b14f9acd51c7a5c
SSDEEP 3072:R2Iz9CI8mUOtDDPwLkBLXLDFkKmvzXBpLHYmmO1QezRd7UcPa1xMjM72:Rjz9X8mXGUXVPmr9mOzRd7UcPKoMq
TLSH
T1A50412B0F3F98B59F0A716B70831597CC97639826329237FC2885A6EAC5442FF18D764
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4268-7-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5364-0-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5364-2-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5608-10-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5608-11-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5608-13-0x00000000022D0000-0x00000000022D2000-memory.dmp

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memory/5608-12-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5608-14-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5608-16-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5608-19-0x0000000010000000-0x0000000010052000-memory.dmp

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