11703625b9728938df02d228e855ccac3c78742dffd27c4617beef19811dec98

General

Target

N95 AND KN95 MASK PICTURES~PDF.exe
Size

869KB
MD5

d21527bda4967799ac00097cb91dde6c
SHA1

fb38cb0a433366d6d58b7de799e071b9311b840a
SHA256

3afc04e4f98aeb4c05a9648ac3a0e1f90788035bc41322bba868fdd982517e42
SHA512

5dac8cbe1db8f3593b251d76558108fb43d6253b3eb650a8aef93a4ad5d20fa2b508acf63ae0e30ce8a6dcd04f03761bbec59f96f43fe5bcf1f1cd0843205099

Score

8^/10

collection evasion persistence

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

N95 AND KN95 MASK PICTURES~PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\ICRNq = "C:\\WYZSGDWS\\ICRNqf\\ICRNqfRDT.vbs"	N95 AND KN95 MASK PICTURES~PDF.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

N95 AND KN95 MASK PICTURES~PDF.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	N95 AND KN95 MASK PICTURES~PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	N95 AND KN95 MASK PICTURES~PDF.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

N95 AND KN95 MASK PICTURES~PDF.exe

description pid process target process

PID 1496 set thread context of 1516 1496 N95 AND KN95 MASK PICTURES~PDF.exe InstallUtil.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1924 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

1516 InstallUtil.exe
1516 InstallUtil.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

N95 AND KN95 MASK PICTURES~PDF.exe

pid process

1496 N95 AND KN95 MASK PICTURES~PDF.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

InstallUtil.exe

description pid process

Token: SeDebugPrivilege 1516 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1516 InstallUtil.exe

description	pid	process	target process
PID 1496 set thread context of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe

pid	process
1924	REG.exe

pid	process
1516	InstallUtil.exe
1516	InstallUtil.exe

pid	process
1496	N95 AND KN95 MASK PICTURES~PDF.exe

description	pid	process
Token: SeDebugPrivilege	1516	InstallUtil.exe

pid	process
1516	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

N95 AND KN95 MASK PICTURES~PDF.exeInstallUtil.exe

description	pid	process	target process
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1496 wrote to memory of 1516	1496	N95 AND KN95 MASK PICTURES~PDF.exe	InstallUtil.exe
PID 1516 wrote to memory of 1924	1516	InstallUtil.exe	REG.exe
PID 1516 wrote to memory of 1924	1516	InstallUtil.exe	REG.exe
PID 1516 wrote to memory of 1924	1516	InstallUtil.exe	REG.exe
PID 1516 wrote to memory of 1924	1516	InstallUtil.exe	REG.exe
PID 1516 wrote to memory of 1704	1516	InstallUtil.exe	netsh.exe
PID 1516 wrote to memory of 1704	1516	InstallUtil.exe	netsh.exe
PID 1516 wrote to memory of 1704	1516	InstallUtil.exe	netsh.exe
PID 1516 wrote to memory of 1704	1516	InstallUtil.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\N95 AND KN95 MASK PICTURES~PDF.exe
"C:\Users\Admin\AppData\Local\Temp\N95 AND KN95 MASK PICTURES~PDF.exe"
1⤵
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1496

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
"C:\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\InstallUtil.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1516

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:1924

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1496-54-0x0000000000FD0000-0x00000000010B0000-memory.dmp

Filesize
896KB

Download
memory/1496-55-0x0000000004B00000-0x0000000004B82000-memory.dmp

Filesize
520KB

Download
memory/1496-57-0x00000000003C0000-0x00000000003C3000-memory.dmp

Filesize
12KB

Download
memory/1516-56-0x000000000044C98E-mapping.dmp

Download
memory/1516-58-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download
memory/1516-59-0x0000000073A20000-0x0000000073FCB000-memory.dmp

Filesize
5.7MB

Download
memory/1704-61-0x0000000000000000-mapping.dmp

Download
memory/1924-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads