f644bef519fc0243633d13f18c97c96d76b95b6f2cbad2a2507fb8177b7e4d1d

Resubmissions

31-03-2022 20:37

220331-zel73sdfcn 10

31-03-2022 16:13

220331-tpjxtaafcp 10

Analysis

max time kernel
219s
max time network
269s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
31-03-2022 16:13

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General

Target

notice.exe
Size

350.0MB
MD5

e74116c5efc7492fa74334a39e22afe8
SHA1

393e81a3d525e8b582355d855d2c367047e4e0b0
SHA256

f644bef519fc0243633d13f18c97c96d76b95b6f2cbad2a2507fb8177b7e4d1d
SHA512

64999f89597bed1857252b98ffd03fba27c9514af0fb430de3913a58e035d619823bcb45a4aa5ec89abdf807f89f9db57d3856e97885144992d03804d79a2352

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-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\qwveqwveqw.exe\","	notice.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	notice.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3744 set thread context of 2676	3744	notice.exe	89

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3132	2676	WerFault.exe	89

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3756	powershell.exe
3756	powershell.exe
3744	notice.exe
3744	notice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3756	powershell.exe
Token: SeDebugPrivilege	3744	notice.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 3756	3744	notice.exe	79
PID 3744 wrote to memory of 3756	3744	notice.exe	79
PID 3744 wrote to memory of 3756	3744	notice.exe	79
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89
PID 3744 wrote to memory of 2676	3744	notice.exe	89

C:\Users\Admin\AppData\Local\Temp\notice.exe
"C:\Users\Admin\AppData\Local\Temp\notice.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3756
- C:\Users\Admin\AppData\Local\Temp\notice.exe
  C:\Users\Admin\AppData\Local\Temp\notice.exe
  2⤵
  PID:2676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 260
    3⤵
    - Program crash
    PID:3132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 2676 -ip 2676
1⤵
PID:2404

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2676-146-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2676-145-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2676-144-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/3744-141-0x0000000006580000-0x00000000065D0000-memory.dmp

Filesize
320KB

Download
memory/3744-130-0x0000000000E10000-0x0000000000E38000-memory.dmp

Filesize
160KB

Download
memory/3744-142-0x0000000006690000-0x0000000006742000-memory.dmp

Filesize
712KB

Download
memory/3756-134-0x0000000005020000-0x0000000005042000-memory.dmp

Filesize
136KB

Download
memory/3756-138-0x0000000007530000-0x0000000007BAA000-memory.dmp

Filesize
6.5MB

Download
memory/3756-139-0x00000000063E0000-0x00000000063FA000-memory.dmp

Filesize
104KB

Download
memory/3756-140-0x0000000004B25000-0x0000000004B27000-memory.dmp

Filesize
8KB

Download
memory/3756-137-0x0000000005EC0000-0x0000000005EDE000-memory.dmp

Filesize
120KB

Download
memory/3756-136-0x0000000005870000-0x00000000058D6000-memory.dmp

Filesize
408KB

Download
memory/3756-135-0x0000000005800000-0x0000000005866000-memory.dmp

Filesize
408KB

Download
memory/3756-133-0x0000000005160000-0x0000000005788000-memory.dmp

Filesize
6.2MB

Download
memory/3756-132-0x0000000002910000-0x0000000002946000-memory.dmp

Filesize
216KB

Download