927c54ab39a935d200c82c8bd3c74fb0daac9f73699881f0e11ea68006245c42

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
03-02-2024 03:50

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General

Target

8b5269e52620cf2f9d0577e8130f4788.exe
Size

360KB
MD5

8b5269e52620cf2f9d0577e8130f4788
SHA1

a59cf34294993b8b0e9019496b7e3ad819b294aa
SHA256

927c54ab39a935d200c82c8bd3c74fb0daac9f73699881f0e11ea68006245c42
SHA512

2a3608485427301736b46dac141e97f9c1cf3bec98f858a9c00b9924e117f5d376e7a5969de4656dc93cc0acd5f37d03b6d5c019f83f0c80dcd8e365d54e7eb6
SSDEEP

6144:us0/F+lAwJ1nvspeEnX3mbrnGkvYXrJiOEco/IXOQcT:j09eJ1nvsEEnXWPnbwJiOEM

Score

8^/10

evasion persistence spyware stealer

Malware Config

Signatures

Disables taskbar notifications via registry modification
evasion

Modifies Installed Components in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Deletes itself 1 IoCs

pid	Process
2844	nnm.exe

Executes dropped EXE 1 IoCs

pid	Process
2844	nnm.exe

Loads dropped DLL 2 IoCs

pid	Process
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe

Modifies system executable filetype association 2 TTPs 17 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\DefaultIcon\ = "%1"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\ = "Application"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\nnm.exe\" -a \"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start\command\ = "\"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\Content Type = "application/x-msdownload"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open\command	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas\command	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start\command	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\DefaultIcon	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas\command\ = "\"%1\" %*"	nnm.exe

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
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\ctfmon.exe = "C:\\WINDOWS\\system32\\ctfmon.exe"	nnm.exe

Modifies registry class 41 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\DefaultIcon	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\open	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\open\command	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\runas\command	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open\command	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start\command	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\ = "exefile"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\runas	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\DefaultIcon\ = "%1"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\start\command\ = "\"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\start\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\Content Type = "application/x-msdownload"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\nnm.exe\" -a \"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas\command\ = "\"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start\command\ = "\"%1\" %*"	nnm.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\Content Type = "application/x-msdownload"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\DefaultIcon\ = "%1"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\nnm.exe\" -a \"%1\" %*"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\start\command	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\ = "Application"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas\command	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\start\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\start	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\runas\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.exe\shell\runas\command\ = "\"%1\" %*"	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\DefaultIcon	nnm.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open	nnm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\exefile\shell\open\command\IsolatedCommand = "\"%1\" %*"	nnm.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2972	8b5269e52620cf2f9d0577e8130f4788.exe
2844	nnm.exe
2844	nnm.exe
2844	nnm.exe
2844	nnm.exe
2844	nnm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2456	explorer.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe
Token: SeShutdownPrivilege	2456	explorer.exe

Suspicious use of FindShellTrayWindow 35 IoCs

pid	Process
2844	nnm.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2844	nnm.exe
2456	explorer.exe
2456	explorer.exe
2844	nnm.exe
2844	nnm.exe
2456	explorer.exe

Suspicious use of SendNotifyMessage 20 IoCs

pid	Process
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2456	explorer.exe
2844	nnm.exe
2844	nnm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2844	2972	8b5269e52620cf2f9d0577e8130f4788.exe	28
PID 2972 wrote to memory of 2844	2972	8b5269e52620cf2f9d0577e8130f4788.exe	28
PID 2972 wrote to memory of 2844	2972	8b5269e52620cf2f9d0577e8130f4788.exe	28
PID 2972 wrote to memory of 2844	2972	8b5269e52620cf2f9d0577e8130f4788.exe	28

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\8b5269e52620cf2f9d0577e8130f4788.exe
"C:\Users\Admin\AppData\Local\Temp\8b5269e52620cf2f9d0577e8130f4788.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\nnm.exe
  "C:\Users\Admin\AppData\Local\nnm.exe" -gav C:\Users\Admin\AppData\Local\Temp\8b5269e52620cf2f9d0577e8130f4788.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2844

C:\Windows\explorer.exe
explorer.exe
1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\nnm.exe

Filesize
360KB

MD5
8b5269e52620cf2f9d0577e8130f4788

SHA1
a59cf34294993b8b0e9019496b7e3ad819b294aa

SHA256
927c54ab39a935d200c82c8bd3c74fb0daac9f73699881f0e11ea68006245c42

SHA512
2a3608485427301736b46dac141e97f9c1cf3bec98f858a9c00b9924e117f5d376e7a5969de4656dc93cc0acd5f37d03b6d5c019f83f0c80dcd8e365d54e7eb6

Download Submit
memory/2456-32-0x0000000002610000-0x0000000002620000-memory.dmp

Filesize
64KB

Download
memory/2456-18-0x00000000043C0000-0x00000000043C1000-memory.dmp

Filesize
4KB

Download
memory/2456-15-0x00000000043C0000-0x00000000043C1000-memory.dmp

Filesize
4KB

Download
memory/2844-20-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-21-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-14-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-34-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-16-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-17-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-33-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-19-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-31-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-30-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-22-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-26-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-27-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-28-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2844-29-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2972-12-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2972-0-0x0000000000020000-0x000000000002D000-memory.dmp

Filesize
52KB

Download
memory/2972-1-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2972-2-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/2972-4-0x0000000000B40000-0x0000000000DF7000-memory.dmp

Filesize
2.7MB

Download