ac3ddf66ba83902207959d6aadb8b869b532ad55b15b23592531afa76d551ea4

General

Target

Mask samples & qty needed~pdf.exe
Size

1.2MB
MD5

cbc2a4c4b531711337eb807fbd082adc
SHA1

f9114fe1e6ebe680831900fce56fde5ed2a748eb
SHA256

2ae247545c4291da9b83ad9ba0c6af00bd80c896a3fb9fafd028e09444bf3baf
SHA512

e5649d648c989049af1dd13c12f397483935d019e93e655801f51f642f7db8bd536c945b4ef92a1f46ff73e8e8952ddb397857c935408e52862543c0a58a92e2

Score

8^/10

collection evasion persistence

Malware Config

Signatures

Disables RegEdit via registry modification
evasion
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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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:

Mask samples & qty needed~pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\OfuoM = "C:\\TBHNEBSE\\OfuoMN\\OfuoMNeUP.vbs"	Mask samples & qty needed~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:

Mask samples & qty needed~pdf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Mask samples & qty needed~pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Mask samples & qty needed~pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Mask samples & qty needed~pdf.exe

description pid process target process

PID 1932 set thread context of 2044 1932 Mask samples & qty needed~pdf.exe InstallUtil.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

436 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

2044 InstallUtil.exe
2044 InstallUtil.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

Mask samples & qty needed~pdf.exe

pid process

1932 Mask samples & qty needed~pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

InstallUtil.exe

description pid process

Token: SeDebugPrivilege 2044 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

2044 InstallUtil.exe

description	pid	process	target process
PID 1932 set thread context of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe

pid	process
436	REG.exe

pid	process
2044	InstallUtil.exe
2044	InstallUtil.exe

pid	process
1932	Mask samples & qty needed~pdf.exe

description	pid	process
Token: SeDebugPrivilege	2044	InstallUtil.exe

pid	process
2044	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Mask samples & qty needed~pdf.exeInstallUtil.exe

description	pid	process	target process
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 1932 wrote to memory of 2044	1932	Mask samples & qty needed~pdf.exe	InstallUtil.exe
PID 2044 wrote to memory of 436	2044	InstallUtil.exe	REG.exe
PID 2044 wrote to memory of 436	2044	InstallUtil.exe	REG.exe
PID 2044 wrote to memory of 436	2044	InstallUtil.exe	REG.exe
PID 2044 wrote to memory of 436	2044	InstallUtil.exe	REG.exe
PID 2044 wrote to memory of 1364	2044	InstallUtil.exe	netsh.exe
PID 2044 wrote to memory of 1364	2044	InstallUtil.exe	netsh.exe
PID 2044 wrote to memory of 1364	2044	InstallUtil.exe	netsh.exe
PID 2044 wrote to memory of 1364	2044	InstallUtil.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Mask samples & qty needed~pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Mask samples & qty needed~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:1932

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:2044

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:436

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1364

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/436-60-0x0000000000000000-mapping.dmp

Download
memory/1364-61-0x0000000000000000-mapping.dmp

Download
memory/1932-54-0x0000000000CD0000-0x0000000000E00000-memory.dmp

Filesize
1.2MB

Download
memory/1932-55-0x0000000000C30000-0x0000000000CB0000-memory.dmp

Filesize
512KB

Download
memory/1932-56-0x0000000000200000-0x0000000000203000-memory.dmp

Filesize
12KB

Download
memory/2044-57-0x000000000044A6EE-mapping.dmp

Download
memory/2044-58-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/2044-59-0x00000000735B0000-0x0000000073B5B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads