19a174d9b6bf71c97169f88c467fe07bf16f307687c30ca17c55f10fdd6c5f7b

General

Target

Inquiry Items~pdf.exe
Size

859KB
MD5

befba058f69c91a13b001f3d15efa262
SHA1

aeebe9b13b160bcb77bca46e5acefbdf214f9e5f
SHA256

e469882fa707c3f2f85c8bdd5fe250434f3fa5169ee71f8132dce99296b99629
SHA512

13a8df597d4ddf3762731e1c9226845e33ef15595c1e9d6152edf1abfabf5a9695f911a9475f900f1862ba50009c208be613679f9ed51e4a1e698f8eab0e779a

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:

Inquiry Items~pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\ybFan = "C:\\TBHNEBSE\\ybFanj\\ybFanjLno.vbs"	Inquiry Items~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:

Inquiry Items~pdf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Inquiry Items~pdf.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Inquiry Items~pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Inquiry Items~pdf.exe

description pid process target process

PID 1944 set thread context of 944 1944 Inquiry Items~pdf.exe InstallUtil.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1316 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

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

Processes:

Inquiry Items~pdf.exe

pid process

1944 Inquiry Items~pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

InstallUtil.exe

description pid process

Token: SeDebugPrivilege 944 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

944 InstallUtil.exe

description	pid	process	target process
PID 1944 set thread context of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe

pid	process
1316	REG.exe

pid	process
944	InstallUtil.exe
944	InstallUtil.exe

pid	process
1944	Inquiry Items~pdf.exe

description	pid	process
Token: SeDebugPrivilege	944	InstallUtil.exe

pid	process
944	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Inquiry Items~pdf.exeInstallUtil.exe

description	pid	process	target process
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 1944 wrote to memory of 944	1944	Inquiry Items~pdf.exe	InstallUtil.exe
PID 944 wrote to memory of 1316	944	InstallUtil.exe	REG.exe
PID 944 wrote to memory of 1316	944	InstallUtil.exe	REG.exe
PID 944 wrote to memory of 1316	944	InstallUtil.exe	REG.exe
PID 944 wrote to memory of 1316	944	InstallUtil.exe	REG.exe
PID 944 wrote to memory of 684	944	InstallUtil.exe	netsh.exe
PID 944 wrote to memory of 684	944	InstallUtil.exe	netsh.exe
PID 944 wrote to memory of 684	944	InstallUtil.exe	netsh.exe
PID 944 wrote to memory of 684	944	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\Inquiry Items~pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Inquiry Items~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:1944

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:944

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:1316

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:684

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/684-61-0x0000000000000000-mapping.dmp

Download
memory/944-56-0x000000000044A6EE-mapping.dmp

Download
memory/944-58-0x0000000075441000-0x0000000075443000-memory.dmp

Filesize
8KB

Download
memory/944-59-0x0000000070810000-0x0000000070DBB000-memory.dmp

Filesize
5.7MB

Download
memory/1316-60-0x0000000000000000-mapping.dmp

Download
memory/1944-54-0x0000000000350000-0x000000000042C000-memory.dmp

Filesize
880KB

Download
memory/1944-55-0x0000000004B40000-0x0000000004BC0000-memory.dmp

Filesize
512KB

Download
memory/1944-57-0x0000000001DF0000-0x0000000001DF3000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads