f9c5eeb4816377550ead8e56565bb7489de66a7bc255be3bd15a90307e2cb091

Analysis

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

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/11/2026, 22:34

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General

Target
2026-11-03_423add502f45b76f1f8196d593670486_coinminer_elex_wannacry.exe
Size 566KB
Sample261104-2hb8dsf19m
SHA256 f9c5eeb4816377550ead8e56565bb7489de66a7bc255be3bd15a90307e2cb091
MD5 423add502f45b76f1f8196d593670486
SHA1 2fb5c5ce2b530e4b9e41f929cf84e8c39ad55c08
SHA512 82896ac39947a87df49e68c62a3d196582ebac7d32ebf5d1c9dddb9099e9b5915026820b65113accdc54b11d2d51525bf79d7a2de1ba437e91cde42954abdc7a
SSDEEP 6144:CKhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+CT:vqzw2wsEDbZ67fpLyUB/5qLCT
TLSH
T1B7C4AD1372E0C856E1A22A32CC7627B0DEF5BEE4D9358A1F5F843A0D1933E44A7157A3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

bootkit defense_evasion discovery execution persistence spyware stealer upx

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 6 IoCs

resource	yara_rule
behavioral2/memory/5796-12-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5796-11-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5796-10-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5796-14-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5796-16-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5796-18-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/5764-0-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/memory/5764-2-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/files/0x000900000001b2ca-3.dat	UPX
behavioral2/memory/3488-7-0x0000000000400000-0x000000000048B000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3488	gwewm.exe

Executes dropped EXE 2 IoCs

pid	Process
3488	gwewm.exe
5796	ajn.exe

Loads dropped DLL 1 IoCs

pid	Process
5796	ajn.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-1-5-21-650287814-2715975232-1279715623-1000\Software\Microsoft\Windows\CurrentVersion\Run\dtfd = "c:\\Program Files\\bhtvj\\ajn.exe \"c:\\Program Files\\bhtvj\\ajnpz.dll\",DoAddToFavDlg"	ajn.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)	\??\t:	ajn.exe
File opened (read-only)	\??\y:	ajn.exe
File opened (read-only)	\??\z:	ajn.exe
File opened (read-only)	\??\a:	ajn.exe
File opened (read-only)	\??\i:	ajn.exe
File opened (read-only)	\??\l:	ajn.exe
File opened (read-only)	\??\m:	ajn.exe
File opened (read-only)	\??\o:	ajn.exe
File opened (read-only)	\??\q:	ajn.exe
File opened (read-only)	\??\g:	ajn.exe
File opened (read-only)	\??\k:	ajn.exe
File opened (read-only)	\??\u:	ajn.exe
File opened (read-only)	\??\x:	ajn.exe
File opened (read-only)	\??\d:	ajn.exe
File opened (read-only)	\??\n:	ajn.exe
File opened (read-only)	\??\s:	ajn.exe
File opened (read-only)	\??\v:	ajn.exe
File opened (read-only)	\??\w:	ajn.exe
File opened (read-only)	\??\b:	ajn.exe
File opened (read-only)	\??\h:	ajn.exe
File opened (read-only)	\??\j:	ajn.exe
File opened (read-only)	\??\p:	ajn.exe
File opened (read-only)	\??\r:	ajn.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	ajn.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5764-0-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/memory/5764-2-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/files/0x000900000001b2ca-3.dat	upx
behavioral2/memory/3488-7-0x0000000000400000-0x000000000048B000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\bhtvj	gwewm.exe
File created	\??\c:\Program Files\bhtvj\ajnpz.dll	gwewm.exe
File created	\??\c:\Program Files\bhtvj\ajn.exe	gwewm.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
6080	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	ajn.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	ajn.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	2026-11-03_423add502f45b76f1f8196d593670486_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	gwewm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ajn.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
6080	cmd.exe
3216	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	ajn.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ajn.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3216	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5796	ajn.exe
5796	ajn.exe
5796	ajn.exe
5796	ajn.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5796	ajn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5764	2026-11-03_423add502f45b76f1f8196d593670486_coinminer_elex_wannacry.exe
3488	gwewm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5764 wrote to memory of 6080	5764	2026-11-03_423add502f45b76f1f8196d593670486_coinminer_elex_wannacry.exe	88
PID 6080 wrote to memory of 3216	6080	cmd.exe	90
PID 6080 wrote to memory of 3488	6080	cmd.exe	91
PID 3488 wrote to memory of 5796	3488	gwewm.exe	92

C:\Users\Admin\AppData\Local\Temp\2026-11-03_423add502f45b76f1f8196d593670486_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-03_423add502f45b76f1f8196d593670486_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5764
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gwewm.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-03_423add502f45b76f1f8196d593670486_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:6080
- - 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:3216
- - C:\Users\Admin\AppData\Local\Temp\gwewm.exe
    C:\Users\Admin\AppData\Local\Temp\\gwewm.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-03_423add502f45b76f1f8196d593670486_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:3488
  - - \??\c:\Program Files\bhtvj\ajn.exe
      "c:\Program Files\bhtvj\ajn.exe" "c:\Program Files\bhtvj\ajnpz.dll",DoAddToFavDlg C:\Users\Admin\AppData\Local\Temp\gwewm.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5796

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

Indicator Removal

T1070

File Deletion

T1070.004

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

ajn.exe

Path C:\Program Files\bhtvj\ajn.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

gwewm.exe

Path C:\Users\Admin\AppData\Local\Temp\gwewm.exe
Size 566KB
SHA256 3cb0f6bcefe991fb6d8b0cbd263f18e6cda49ca3581e199ea34f0c071afde127
MD5 58b8f208d26e98280d3973a748d5ed2a
SHA1 6b8849b9e4f48c9f47b8665e17b4be3d2f48708e
SHA512 98f12d06f95a2b1577df59590eb3324cf60fed04720251585eb7a7929dd0f9921ea35731b2a425ff91254ad71c80e8d81c171ec10e6506416d3bc780917eb38d
SSDEEP 6144:CKhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+C1:vqzw2wsEDbZ67fpLyUB/5qLC1
TLSH
T1C2C4AD1372E0C856E1A22A32CC7627B0DEF5BEE4D9358A1F5F843A0D1933E44A7157A3
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ajnpz.dll

Path \??\c:\Program Files\bhtvj\ajnpz.dll
Size 171KB
SHA256 6b2068b9afa7a3f7b7166302fa8f199caaad139e06ce052b8de55ad9b733fcc4
MD5 68ff4ffbfca8bfe4f80a6f20c8417619
SHA1 41719913d2cf8ff90bc46add472f9eb27592ecd6
SHA512 12c36c931fff7fe6978b23dfbd5df2a9d25ae34e99ecd6251445cb8c4b124818860ff18d01b73d3b5bf4d27a4d4f8c1428fe1b79848922bb8618390769ec8753
SSDEEP 3072:R2Iz9CI8mUOtDDPwLkBLXLDFkKmvzXBpLHYmmO1QezRd7UcPa1xMjM7X:Rjz9X8mXGUXVPmr9mOzRd7UcPKoMD
TLSH
T1F20412B0F3F98759F0A716B70831597CC97638826329237FC2885A6EAC5442FF18D764
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3488-7-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5764-0-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5764-2-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/5796-13-0x0000000002550000-0x0000000002552000-memory.dmp

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memory/5796-12-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5796-11-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5796-10-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5796-14-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5796-16-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5796-18-0x0000000010000000-0x0000000010052000-memory.dmp

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