3c9e3e8035a213d59ebf59fc8b3889f9af6d1bcbb4083064b6ffbca9a588fc4c

Analysis

max time kernel
141s
max time network
119s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
02-09-2024 07:54

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General

Target

Uninstalr.exe
Size

5.8MB
MD5

7fd25adf2e51606e9c44b26bf32335fa
SHA1

0859dae2b2a8b7a7ac68bed3d5ab7b49e94b7001
SHA256

60814f455b04e8bf9b5c19aada40fe6838c1ca5b2b6c1f1e5ece8f5479b2b84f
SHA512

ad59f77cc8b05fa2cde584b6b701b07719f6cc7d99be543f24b9759e5a65b3d2d789aa1baec1b093732ac47479c1544a251bac4ddf730b2e9df21cbcb08968aa
SSDEEP

98304:31ZG/7+Y+ueg2G8QtGp3XdHGZzqbTg2T5NQiBClc5QO8cdB/JUldokgNvvNdIc2J:310/7+YYBNtGZQTpIiBClo8cdB/JIo1a

Score

7^/10

discovery execution spyware stealer upx

Malware Config

Signatures

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

UPX packed file 11 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral7/memory/2408-0-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-5-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-6-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-67-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-68-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-69-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-70-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-72-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-73-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-74-0x0000000000400000-0x000000000280D000-memory.dmp	upx
behavioral7/memory/2408-75-0x0000000000400000-0x000000000280D000-memory.dmp	upx

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-A90000000001}\SC_Reader.exe	Uninstalr.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2800	powershell.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Uninstalr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2408	Uninstalr.exe
2408	Uninstalr.exe
2800	powershell.exe
2408	Uninstalr.exe
2408	Uninstalr.exe
2408	Uninstalr.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeIncreaseQuotaPrivilege	2740	WMIC.exe
Token: SeSecurityPrivilege	2740	WMIC.exe
Token: SeTakeOwnershipPrivilege	2740	WMIC.exe
Token: SeLoadDriverPrivilege	2740	WMIC.exe
Token: SeSystemProfilePrivilege	2740	WMIC.exe
Token: SeSystemtimePrivilege	2740	WMIC.exe
Token: SeProfSingleProcessPrivilege	2740	WMIC.exe
Token: SeIncBasePriorityPrivilege	2740	WMIC.exe
Token: SeCreatePagefilePrivilege	2740	WMIC.exe
Token: SeBackupPrivilege	2740	WMIC.exe
Token: SeRestorePrivilege	2740	WMIC.exe
Token: SeShutdownPrivilege	2740	WMIC.exe
Token: SeDebugPrivilege	2740	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2740	WMIC.exe
Token: SeRemoteShutdownPrivilege	2740	WMIC.exe
Token: SeUndockPrivilege	2740	WMIC.exe
Token: SeManageVolumePrivilege	2740	WMIC.exe
Token: 33	2740	WMIC.exe
Token: 34	2740	WMIC.exe
Token: 35	2740	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2740	WMIC.exe
Token: SeSecurityPrivilege	2740	WMIC.exe
Token: SeTakeOwnershipPrivilege	2740	WMIC.exe
Token: SeLoadDriverPrivilege	2740	WMIC.exe
Token: SeSystemProfilePrivilege	2740	WMIC.exe
Token: SeSystemtimePrivilege	2740	WMIC.exe
Token: SeProfSingleProcessPrivilege	2740	WMIC.exe
Token: SeIncBasePriorityPrivilege	2740	WMIC.exe
Token: SeCreatePagefilePrivilege	2740	WMIC.exe
Token: SeBackupPrivilege	2740	WMIC.exe
Token: SeRestorePrivilege	2740	WMIC.exe
Token: SeShutdownPrivilege	2740	WMIC.exe
Token: SeDebugPrivilege	2740	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2740	WMIC.exe
Token: SeRemoteShutdownPrivilege	2740	WMIC.exe
Token: SeUndockPrivilege	2740	WMIC.exe
Token: SeManageVolumePrivilege	2740	WMIC.exe
Token: 33	2740	WMIC.exe
Token: 34	2740	WMIC.exe
Token: 35	2740	WMIC.exe
Token: SeRestorePrivilege	2600	msiexec.exe
Token: SeTakeOwnershipPrivilege	2600	msiexec.exe
Token: SeSecurityPrivilege	2600	msiexec.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2408	Uninstalr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2408	Uninstalr.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2800	2408	Uninstalr.exe	30
PID 2408 wrote to memory of 2800	2408	Uninstalr.exe	30
PID 2408 wrote to memory of 2800	2408	Uninstalr.exe	30
PID 2408 wrote to memory of 2800	2408	Uninstalr.exe	30
PID 2408 wrote to memory of 2392	2408	Uninstalr.exe	32
PID 2408 wrote to memory of 2392	2408	Uninstalr.exe	32
PID 2408 wrote to memory of 2392	2408	Uninstalr.exe	32
PID 2408 wrote to memory of 2392	2408	Uninstalr.exe	32
PID 2392 wrote to memory of 2740	2392	cmd.exe	34
PID 2392 wrote to memory of 2740	2392	cmd.exe	34
PID 2392 wrote to memory of 2740	2392	cmd.exe	34
PID 2392 wrote to memory of 2740	2392	cmd.exe	34

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
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\Uninstalr.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstalr.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Get-AppxPackage -AllUsers | Out-File "C:\Users\Admin\AppData\Local\Temp\Uninstalr_can_delete_x1_259474481.tmp"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c wmic product get InstallDate, InstallLocation, Name, Vendor, Version > "C:\Users\Admin\AppData\Local\Temp\Uninstalr_can_delete_x2_259475620.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic product get InstallDate, InstallLocation, Name, Vendor, Version
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2740

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Uninstalr.dat

Filesize
98B

MD5
4341fadcee0bfac23ba73794fafdd5c5

SHA1
5193681883968cf83fae1e94ee64ae92322ab049

SHA256
11c60d0d66774bb0f02e9deb2ae7ec60a88e8993a3ccbfc3169461d978e697be

SHA512
9d2196cdc8f44d97e51107bf71e620e28dc57806be846ab44e53b68051b959a20c65988bf57fa3e495464a98e43eee94c2b54ed7b501ee200100e041204b1b32

Download Submit
memory/2408-67-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-68-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-5-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-7-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2408-6-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-1-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2408-4-0x0000000006B70000-0x0000000006B80000-memory.dmp

Filesize
64KB

Download
memory/2408-0-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-66-0x0000000006B70000-0x0000000006B80000-memory.dmp

Filesize
64KB

Download
memory/2408-69-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-70-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-72-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-73-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-74-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download
memory/2408-75-0x0000000000400000-0x000000000280D000-memory.dmp

Filesize
36.1MB

Download