133b448b11a35b9b6c547c1876c24db05ff1cc2dc24504bc552a541fd0c70cac

Analysis

max time kernel
148s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/08/2026, 06:03

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General

Target
2026-08-02_75d38a149fa6304533620dc35b271c98_coinminer_elex_wannacry.exe
Size 592KB
Sample260802-gr3rgstyhs
SHA256 133b448b11a35b9b6c547c1876c24db05ff1cc2dc24504bc552a541fd0c70cac
MD5 75d38a149fa6304533620dc35b271c98
SHA1 d3e0ed79f2547e6f970e086cf3d0882300acb58e
SHA512 af375d63273458e9277f296211ce1ace9c80104dfcb4b73a6c4b64358e214fc3dec80725096d68e506d9d536c77053b2d19c856bf4613a30eefadf50c4765f8f
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAC:aqzw2wsEDbZ67fpLyUB/5qLl5
TLSH
T105D4AD13B2E4C855E1A12A72CC7667B0DEF5BEE4D9358A1F5F843A0D2833E00E6157A7
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/4192-12-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4192-11-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4192-14-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4192-16-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4192-21-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/5032-0-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/memory/5032-2-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/files/0x000c00000001af5c-3.dat	UPX
behavioral2/memory/4324-7-0x0000000000400000-0x000000000048B000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
4324	crkee.exe

Executes dropped EXE 2 IoCs

pid	Process
4324	crkee.exe
4192	zzo.exe

Loads dropped DLL 1 IoCs

pid	Process
4192	zzo.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\\lnfbnn\\zzo.exe \"c:\\Program Files\\lnfbnn\\zzosd.dll\",DoAddToFavDlg"	zzo.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:	zzo.exe
File opened (read-only)	\??\r:	zzo.exe
File opened (read-only)	\??\t:	zzo.exe
File opened (read-only)	\??\y:	zzo.exe
File opened (read-only)	\??\l:	zzo.exe
File opened (read-only)	\??\v:	zzo.exe
File opened (read-only)	\??\z:	zzo.exe
File opened (read-only)	\??\b:	zzo.exe
File opened (read-only)	\??\d:	zzo.exe
File opened (read-only)	\??\h:	zzo.exe
File opened (read-only)	\??\m:	zzo.exe
File opened (read-only)	\??\n:	zzo.exe
File opened (read-only)	\??\q:	zzo.exe
File opened (read-only)	\??\s:	zzo.exe
File opened (read-only)	\??\w:	zzo.exe
File opened (read-only)	\??\a:	zzo.exe
File opened (read-only)	\??\g:	zzo.exe
File opened (read-only)	\??\i:	zzo.exe
File opened (read-only)	\??\j:	zzo.exe
File opened (read-only)	\??\p:	zzo.exe
File opened (read-only)	\??\u:	zzo.exe
File opened (read-only)	\??\x:	zzo.exe
File opened (read-only)	\??\k:	zzo.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	zzo.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5032-0-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/memory/5032-2-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/files/0x000c00000001af5c-3.dat	upx
behavioral2/memory/4324-7-0x0000000000400000-0x000000000048B000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\lnfbnn	crkee.exe
File created	\??\c:\Program Files\lnfbnn\zzosd.dll	crkee.exe
File created	\??\c:\Program Files\lnfbnn\zzo.exe	crkee.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
5008	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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crkee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zzo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-02_75d38a149fa6304533620dc35b271c98_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
5008	cmd.exe
1556	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	zzo.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	zzo.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1556	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4192	zzo.exe
4192	zzo.exe
4192	zzo.exe
4192	zzo.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4192	zzo.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5032	2026-08-02_75d38a149fa6304533620dc35b271c98_coinminer_elex_wannacry.exe
4324	crkee.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 5008	5032	2026-08-02_75d38a149fa6304533620dc35b271c98_coinminer_elex_wannacry.exe	89
PID 5008 wrote to memory of 1556	5008	cmd.exe	91
PID 5008 wrote to memory of 4324	5008	cmd.exe	92
PID 4324 wrote to memory of 4192	4324	crkee.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-02_75d38a149fa6304533620dc35b271c98_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_75d38a149fa6304533620dc35b271c98_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\crkee.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_75d38a149fa6304533620dc35b271c98_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:5008
- - 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:1556
- - C:\Users\Admin\AppData\Local\Temp\crkee.exe
    C:\Users\Admin\AppData\Local\Temp\\crkee.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_75d38a149fa6304533620dc35b271c98_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:4324
  - - \??\c:\Program Files\lnfbnn\zzo.exe
      "c:\Program Files\lnfbnn\zzo.exe" "c:\Program Files\lnfbnn\zzosd.dll",DoAddToFavDlg C:\Users\Admin\AppData\Local\Temp\crkee.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:4192

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

zzo.exe

Path C:\Program Files\lnfbnn\zzo.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

crkee.exe

Path C:\Users\Admin\AppData\Local\Temp\crkee.exe
Size 593KB
SHA256 07c9b73d759b49d350e349ddde5cf08da35205b78cd1633db51b854acd3d90ab
MD5 e3fb2f8ec00071eeeaaaff667d6e1eb5
SHA1 2cfd5266e5c85313fb4d56a25ce969c9fb2b9e39
SHA512 16b7c2dd3262cd2527fdd0b95498a22899833d4cac7705369434a223c740d828887a9b664b510a3074d4655863035c9d3afc21127958f17c8842a237d52412bd
SSDEEP 6144:AhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+lAR:aqzw2wsEDbZ67fpLyUB/5qLlw
TLSH
T11DD4AD13B2E4C855E1A12A72CC7663F0DEF5BEE4D9358A1F5F843A0D2933E00A6157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

zzosd.dll

Path \??\c:\Program Files\lnfbnn\zzosd.dll
Size 171KB
SHA256 9ec48f6bd7b485fb8fff3acfca4d6aa24133e57952a84e37c9b2a430b02e3a6a
MD5 86d59f6d73d4d7a8699c0ec9f0c8ac51
SHA1 3c4aae58cf6b5b4029fa18362e315e120a2252a6
SHA512 a7a50d701257d33f349a61dc3f5021a29df5182879a899c92c41b1e357ecfafbe83679aff783b96a7ebdba4e27db9a30bb9dc8cdcae4ae634ddf4281d635c93e
SSDEEP 3072:R2Iz9CI8mUOtDDPwLkBLXLDFkKmvzXBpLHYmmO1QezRd7UcPa1xMjM7h:Rjz9X8mXGUXVPmr9mOzRd7UcPKoM1
TLSH
T1BA0412B0F3F98759F0A716B70831593CC97639826329237FC2885A6EAC5442FF18D764
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4192-10-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4192-13-0x0000000002B20000-0x0000000002B22000-memory.dmp

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memory/4192-12-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4192-11-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4192-14-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4192-16-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4192-21-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4324-7-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5032-2-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5032-0-0x0000000000400000-0x000000000048B000-memory.dmp

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