400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea

Analysis

max time kernel
22s
max time network
31s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 09:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe
Size

71KB
MD5

3e8afe7d4a572ce2c2393c0b46a4cce0
SHA1

04f797979033c1641551320bda25c782d74f12f9
SHA256

400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea
SHA512

408c3cb153b17cdd88bb91e354ca966ef55e4781f069e5be3e1b24a575f578e8eafba7151754c0866532e9626417aa17a35d48a3b7d0dbf4dc2bd8666636d550
SSDEEP

1536:7pV9Xq6oM+G539czabw/TCtxvUryRBieyet1dGg0sGpxxfP5Te:1DXq6oytIab6G1UmBieyerdGoGpXt

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe"	400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe

UPX packed file 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1752-58-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\S164194148 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe"	400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1308 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1308 taskkill.exe

pid	process
1308	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1308	taskkill.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe

description	pid	process	target process
PID 1752 wrote to memory of 1308	1752	400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe	taskkill.exe
PID 1752 wrote to memory of 1308	1752	400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe	taskkill.exe
PID 1752 wrote to memory of 1308	1752	400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe	taskkill.exe
PID 1752 wrote to memory of 1308	1752	400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe
"C:\Users\Admin\AppData\Local\Temp\400e7dec5821accbb84949dc90442dd8015e259a131fe1c88f12d811be4e49ea.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\SysWOW64\taskkill.exe
taskkill /F /IM explorer.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1308

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1308-57-0x0000000000000000-mapping.dmp

Download
memory/1752-54-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1752-55-0x0000000000220000-0x0000000000240000-memory.dmp

Filesize
128KB

Download
memory/1752-56-0x0000000000220000-0x0000000000240000-memory.dmp

Filesize
128KB

Download
memory/1752-58-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1752-59-0x0000000000220000-0x0000000000240000-memory.dmp

Filesize
128KB

Download