902abe7c2f1e7afb139ce47a818b11d9ff9dfe9a46cc9b9afb7d7d53bda6c528

General

Target

notee.exe
Size

7KB
MD5

d3e184b081ba54e7b5cbd5dc579f4f27
SHA1

b7c61923ed6ac09d1aec3b7ff799548d6b6af1c8
SHA256

902abe7c2f1e7afb139ce47a818b11d9ff9dfe9a46cc9b9afb7d7d53bda6c528
SHA512

a9153828449c0ac2eb0feb465b092168b176f133034732eccfec69d4e0705e8f3acd628314b751ad0eaaff06d0b78784242ecbad1aa26783bb0dba23e95f23ee
SSDEEP

96:Wd7KqtBgjmLYoSrJmAkcPFn9bi/rkA86o00gazFnU:WPwHrJr9nlmAyjbt

Score

7^/10

collection persistence spyware stealer

Malware Config

Signatures

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	notee.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notee.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notee.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notee.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Pqkngfy = "\"C:\\Users\\Admin\\AppData\\Roaming\\Bkpfu\\Pqkngfy.exe\""	notee.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
33	api.ipify.org
34	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1508 set thread context of 4008	1508	notee.exe	87

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5056	powershell.exe
5056	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	notee.exe
Token: SeDebugPrivilege	5056	powershell.exe
Token: SeDebugPrivilege	4008	notee.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4008	notee.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 5056	1508	notee.exe	81
PID 1508 wrote to memory of 5056	1508	notee.exe	81
PID 1508 wrote to memory of 5056	1508	notee.exe	81
PID 1508 wrote to memory of 4008	1508	notee.exe	87
PID 1508 wrote to memory of 4008	1508	notee.exe	87
PID 1508 wrote to memory of 4008	1508	notee.exe	87
PID 1508 wrote to memory of 4008	1508	notee.exe	87
PID 1508 wrote to memory of 4008	1508	notee.exe	87
PID 1508 wrote to memory of 4008	1508	notee.exe	87
PID 1508 wrote to memory of 4008	1508	notee.exe	87
PID 1508 wrote to memory of 4008	1508	notee.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notee.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	notee.exe

C:\Users\Admin\AppData\Local\Temp\notee.exe
"C:\Users\Admin\AppData\Local\Temp\notee.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5056
- C:\Users\Admin\AppData\Local\Temp\notee.exe
  C:\Users\Admin\AppData\Local\Temp\notee.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\notee.exe.log

Filesize
1KB

MD5
3a9188331a78f1dbce606db64b841fcb

SHA1
8e2c99b7c477d06591a856a4ea3e1e214719eee8

SHA256
db4137e258a0f6159fda559a5f6dd2704be0582c3f0586f65040c7ad1eb68451

SHA512
d1a994610a045d89d5d306866c24ae56bf16555414b8f63f632552568e67b5586f26d5a17a1f0a55ada376730298e6d856e9161828d4eae9decfa4e015e0e90a

Download Submit
memory/1508-133-0x0000000006500000-0x0000000006522000-memory.dmp

Filesize
136KB

Download
memory/1508-132-0x0000000000470000-0x0000000000478000-memory.dmp

Filesize
32KB

Download
memory/4008-148-0x0000000006D60000-0x0000000006DB0000-memory.dmp

Filesize
320KB

Download
memory/4008-147-0x0000000006C40000-0x0000000006C4A000-memory.dmp

Filesize
40KB

Download
memory/4008-146-0x0000000006CC0000-0x0000000006D52000-memory.dmp

Filesize
584KB

Download
memory/4008-145-0x0000000005960000-0x0000000005F04000-memory.dmp

Filesize
5.6MB

Download
memory/4008-143-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/5056-136-0x00000000053D0000-0x00000000059F8000-memory.dmp

Filesize
6.2MB

Download
memory/5056-141-0x00000000066F0000-0x000000000670A000-memory.dmp

Filesize
104KB

Download
memory/5056-140-0x0000000007A60000-0x00000000080DA000-memory.dmp

Filesize
6.5MB

Download
memory/5056-139-0x00000000061F0000-0x000000000620E000-memory.dmp

Filesize
120KB

Download
memory/5056-138-0x0000000005B60000-0x0000000005BC6000-memory.dmp

Filesize
408KB

Download
memory/5056-137-0x0000000005AF0000-0x0000000005B56000-memory.dmp

Filesize
408KB

Download
memory/5056-135-0x0000000004C10000-0x0000000004C46000-memory.dmp

Filesize
216KB

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Analysis

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