f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6

General

Target

f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
Size

253KB
MD5

2ea599521d2dfbc2a77ee7ac9a250cb0
SHA1

ab4039b9117750f907e1e09198b76c5460211236
SHA256

f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6
SHA512

2b240eed25a674e6e33f64bb871fc1358e4fadcc42c68e6bbd357754cb603654d19fa3e42d123e2d6c53d837b558a6a81ec7bc05987b5d0bdcd1b6eb3097ca97
SSDEEP

3072:We+5S0FPa17Nq0b6bdl7EuiatZJzB71kdLcTkCSQVEiWxFH0Jn4:N+cK47j6bdlAuTF782MiWxFHD

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	boeyi.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe

Executes dropped EXE 1 IoCs

pid	Process
1288	boeyi.exe

Loads dropped DLL 2 IoCs

pid	Process
996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe

Adds Run key to start application 2 TTPs 24 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /o"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /y"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /f"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /i"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /h"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /r"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /u"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /v"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /a"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /k"	boeyi.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /j"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /t"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /q"	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /w"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /q"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /d"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /e"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /m"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /p"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /s"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /b"	boeyi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\boeyi = "C:\\Users\\Admin\\boeyi.exe /z"	boeyi.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	boeyi.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	boeyi.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe
1288	boeyi.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
1288	boeyi.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 1288	996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe	27
PID 996 wrote to memory of 1288	996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe	27
PID 996 wrote to memory of 1288	996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe	27
PID 996 wrote to memory of 1288	996	f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe	27

C:\Users\Admin\AppData\Local\Temp\f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe
"C:\Users\Admin\AppData\Local\Temp\f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:996
- C:\Users\Admin\boeyi.exe
  "C:\Users\Admin\boeyi.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1288

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\boeyi.exe

Filesize
253KB

MD5
2ea599521d2dfbc2a77ee7ac9a250cb0

SHA1
ab4039b9117750f907e1e09198b76c5460211236

SHA256
f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6

SHA512
2b240eed25a674e6e33f64bb871fc1358e4fadcc42c68e6bbd357754cb603654d19fa3e42d123e2d6c53d837b558a6a81ec7bc05987b5d0bdcd1b6eb3097ca97

Download Submit
C:\Users\Admin\boeyi.exe

Filesize
253KB

MD5
2ea599521d2dfbc2a77ee7ac9a250cb0

SHA1
ab4039b9117750f907e1e09198b76c5460211236

SHA256
f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6

SHA512
2b240eed25a674e6e33f64bb871fc1358e4fadcc42c68e6bbd357754cb603654d19fa3e42d123e2d6c53d837b558a6a81ec7bc05987b5d0bdcd1b6eb3097ca97

Download Submit
\Users\Admin\boeyi.exe

Filesize
253KB

MD5
2ea599521d2dfbc2a77ee7ac9a250cb0

SHA1
ab4039b9117750f907e1e09198b76c5460211236

SHA256
f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6

SHA512
2b240eed25a674e6e33f64bb871fc1358e4fadcc42c68e6bbd357754cb603654d19fa3e42d123e2d6c53d837b558a6a81ec7bc05987b5d0bdcd1b6eb3097ca97

Download Submit
\Users\Admin\boeyi.exe

Filesize
253KB

MD5
2ea599521d2dfbc2a77ee7ac9a250cb0

SHA1
ab4039b9117750f907e1e09198b76c5460211236

SHA256
f5527dd12e4e0d7b1d67c21773cd8d602b045b4aef94d36f1e5f238c629ba8d6

SHA512
2b240eed25a674e6e33f64bb871fc1358e4fadcc42c68e6bbd357754cb603654d19fa3e42d123e2d6c53d837b558a6a81ec7bc05987b5d0bdcd1b6eb3097ca97

Download Submit
memory/996-56-0x00000000760E1000-0x00000000760E3000-memory.dmp

Filesize
8KB

Download
memory/996-64-0x0000000073FE1000-0x0000000073FE3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads