44801cf505ecb773e76855ad7fbc2bd89c9e3badc7413dc5dbbd2c0b3a39609a

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2023, 09:15

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General

Target

PO FILE87965345 exl.exe
Size

1.8MB
MD5

26fa36b587e07bde2d99f329ba553e9c
SHA1

5d2b42a954666f85fcf91475c3ec361c4c254764
SHA256

511bd4f1051444242dda8ae6df80720106a6b4d60eab89658baffb142affe730
SHA512

413bf79332518b6af56cc23c162d2b981a94744e463b1a01ab8f3699c681cad077d177e3213132d1791969810bc7065667b331deb4f51570a31c96a625b4c694
SSDEEP

12288:9d7uix2TBXVnBGw4I/6QTdp7lRpIlfMer5iiTvdyEp8NMXzp4J2cT3RnnrgYs3aF:98MXzCYqBrfGadT

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Local\\htv.exe,"	reg.exe

Executes dropped EXE 1 IoCs

pid	Process
2580	htv.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
2612	PING.EXE
4904	PING.EXE
3676	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe
464	PO FILE87965345 exl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	464	PO FILE87965345 exl.exe
Token: SeDebugPrivilege	2580	htv.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 4724	464	PO FILE87965345 exl.exe	88
PID 464 wrote to memory of 4724	464	PO FILE87965345 exl.exe	88
PID 464 wrote to memory of 4724	464	PO FILE87965345 exl.exe	88
PID 4724 wrote to memory of 2612	4724	cmd.exe	90
PID 4724 wrote to memory of 2612	4724	cmd.exe	90
PID 4724 wrote to memory of 2612	4724	cmd.exe	90
PID 464 wrote to memory of 952	464	PO FILE87965345 exl.exe	97
PID 464 wrote to memory of 952	464	PO FILE87965345 exl.exe	97
PID 464 wrote to memory of 952	464	PO FILE87965345 exl.exe	97
PID 952 wrote to memory of 4904	952	cmd.exe	99
PID 952 wrote to memory of 4904	952	cmd.exe	99
PID 952 wrote to memory of 4904	952	cmd.exe	99
PID 4724 wrote to memory of 2244	4724	cmd.exe	100
PID 4724 wrote to memory of 2244	4724	cmd.exe	100
PID 4724 wrote to memory of 2244	4724	cmd.exe	100
PID 952 wrote to memory of 3676	952	cmd.exe	101
PID 952 wrote to memory of 3676	952	cmd.exe	101
PID 952 wrote to memory of 3676	952	cmd.exe	101
PID 952 wrote to memory of 2580	952	cmd.exe	102
PID 952 wrote to memory of 2580	952	cmd.exe	102
PID 952 wrote to memory of 2580	952	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\PO FILE87965345 exl.exe
"C:\Users\Admin\AppData\Local\Temp\PO FILE87965345 exl.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:464
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 38 > nul && REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\htv.exe,"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4724
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 38
    3⤵
    - Runs ping.exe
    PID:2612
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\htv.exe,"
    3⤵
    - Modifies WinLogon for persistence
    PID:2244
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 40 > nul && copy "C:\Users\Admin\AppData\Local\Temp\PO FILE87965345 exl.exe" "C:\Users\Admin\AppData\Local\htv.exe" && ping 127.0.0.1 -n 40 > nul && "C:\Users\Admin\AppData\Local\htv.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:952
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 40
    3⤵
    - Runs ping.exe
    PID:4904
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 40
    3⤵
    - Runs ping.exe
    PID:3676
- - C:\Users\Admin\AppData\Local\htv.exe
    "C:\Users\Admin\AppData\Local\htv.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\htv.exe

Filesize
1.8MB

MD5
26fa36b587e07bde2d99f329ba553e9c

SHA1
5d2b42a954666f85fcf91475c3ec361c4c254764

SHA256
511bd4f1051444242dda8ae6df80720106a6b4d60eab89658baffb142affe730

SHA512
413bf79332518b6af56cc23c162d2b981a94744e463b1a01ab8f3699c681cad077d177e3213132d1791969810bc7065667b331deb4f51570a31c96a625b4c694

Download Submit
C:\Users\Admin\AppData\Local\htv.exe

Filesize
1.8MB

MD5
26fa36b587e07bde2d99f329ba553e9c

SHA1
5d2b42a954666f85fcf91475c3ec361c4c254764

SHA256
511bd4f1051444242dda8ae6df80720106a6b4d60eab89658baffb142affe730

SHA512
413bf79332518b6af56cc23c162d2b981a94744e463b1a01ab8f3699c681cad077d177e3213132d1791969810bc7065667b331deb4f51570a31c96a625b4c694

Download Submit
memory/464-143-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

Filesize
64KB

Download
memory/464-135-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/464-137-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

Filesize
64KB

Download
memory/464-138-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

Filesize
64KB

Download
memory/464-139-0x0000000005F70000-0x0000000005F7A000-memory.dmp

Filesize
40KB

Download
memory/464-140-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

Filesize
64KB

Download
memory/464-141-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

Filesize
64KB

Download
memory/464-142-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

Filesize
64KB

Download
memory/464-133-0x0000000000C80000-0x0000000000E58000-memory.dmp

Filesize
1.8MB

Download
memory/464-136-0x0000000005160000-0x00000000051FC000-memory.dmp

Filesize
624KB

Download
memory/464-134-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/2580-150-0x0000000000650000-0x0000000000828000-memory.dmp

Filesize
1.8MB

Download
memory/2580-151-0x0000000006470000-0x0000000006480000-memory.dmp

Filesize
64KB

Download
memory/2580-152-0x0000000006470000-0x0000000006480000-memory.dmp

Filesize
64KB

Download
memory/2580-153-0x0000000006470000-0x0000000006480000-memory.dmp

Filesize
64KB

Download
memory/2580-154-0x0000000006470000-0x0000000006480000-memory.dmp

Filesize
64KB

Download
memory/2580-155-0x0000000006470000-0x0000000006480000-memory.dmp

Filesize
64KB

Download
memory/2580-156-0x0000000006470000-0x0000000006480000-memory.dmp

Filesize
64KB

Download
memory/2580-157-0x0000000006470000-0x0000000006480000-memory.dmp

Filesize
64KB

Download