2f3709579bd5f0c039eed9e4a849ae46b286cc779cecad78910aaffae51b4278

General

Target

grabbot_0.1.4.0.vir.exe
Size

284KB
MD5

3c3ebe8014d0c9b63e752267a58f7350
SHA1

390e98beff93c5cdc28664c6f7bc906b9b1d851f
SHA256

2f3709579bd5f0c039eed9e4a849ae46b286cc779cecad78910aaffae51b4278
SHA512

b99064660e8a85e0a247eaac8a8f975849b01437de06e82fefb14d6618af4742da42d29e5cbf006d1c3cc31fafb99c34dcf04dd01aa420dbfa93c76d9a695bcc

Score

8^/10

upx persistence discovery evasion trojan

Malware Config

Signatures

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

grabbot_0.1.4.0.vir.exesvchost.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1400	grabbot_0.1.4.0.vir.exe
Token: SeSecurityPrivilege	1400	grabbot_0.1.4.0.vir.exe
Token: SeSecurityPrivilege	1400	grabbot_0.1.4.0.vir.exe
Token: SeSecurityPrivilege	676	svchost.exe
Token: SeShutdownPrivilege	1284	Explorer.EXE

Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
1284 Explorer.EXE
1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
1284 Explorer.EXE
1284 Explorer.EXE
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Explorer.EXE

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

grabbot_0.1.4.0.vir.exegrabbot_0.1.4.0.vir.exesvchost.exe

pid	process
1108	grabbot_0.1.4.0.vir.exe
1108	grabbot_0.1.4.0.vir.exe
1400	grabbot_0.1.4.0.vir.exe
676	svchost.exe
676	svchost.exe
676	svchost.exe
676	svchost.exe
676	svchost.exe
676	svchost.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

grabbot_0.1.4.0.vir.exegrabbot_0.1.4.0.vir.exe

description	pid	process	target process
PID 1108 set thread context of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 set thread context of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1400 set thread context of 676	1400	grabbot_0.1.4.0.vir.exe	svchost.exe

Deletes itself 1 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE

pid	process
1284	Explorer.EXE

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1320-0-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1320-2-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1320-4-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	Explorer.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\{F14A02F8-B440-FE00-1000-E93355C261} = "\"C:\\Users\\Admin\\AppData\\Roaming\\{F14A02F8-B440-FE00-1000-E93355C261}\\yefklqvwcd.exe\""	Explorer.EXE

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
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

grabbot_0.1.4.0.vir.exe

pid process

1108 grabbot_0.1.4.0.vir.exe
1108 grabbot_0.1.4.0.vir.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

grabbot_0.1.4.0.vir.exegrabbot_0.1.4.0.vir.exe

description	pid	process	target process
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1320	1108	grabbot_0.1.4.0.vir.exe	iexplore.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1108 wrote to memory of 1400	1108	grabbot_0.1.4.0.vir.exe	grabbot_0.1.4.0.vir.exe
PID 1400 wrote to memory of 1284	1400	grabbot_0.1.4.0.vir.exe	Explorer.EXE
PID 1400 wrote to memory of 1284	1400	grabbot_0.1.4.0.vir.exe	Explorer.EXE
PID 1400 wrote to memory of 1284	1400	grabbot_0.1.4.0.vir.exe	Explorer.EXE
PID 1400 wrote to memory of 676	1400	grabbot_0.1.4.0.vir.exe	svchost.exe
PID 1400 wrote to memory of 676	1400	grabbot_0.1.4.0.vir.exe	svchost.exe
PID 1400 wrote to memory of 676	1400	grabbot_0.1.4.0.vir.exe	svchost.exe
PID 1400 wrote to memory of 676	1400	grabbot_0.1.4.0.vir.exe	svchost.exe
PID 1400 wrote to memory of 676	1400	grabbot_0.1.4.0.vir.exe	svchost.exe
PID 1400 wrote to memory of 676	1400	grabbot_0.1.4.0.vir.exe	svchost.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Checks whether UAC is enabled
- Deletes itself
- Adds Run key to start application
PID:1284

C:\Users\Admin\AppData\Local\Temp\grabbot_0.1.4.0.vir.exe
"C:\Users\Admin\AppData\Local\Temp\grabbot_0.1.4.0.vir.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1108

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:1320

C:\Users\Admin\AppData\Local\Temp\grabbot_0.1.4.0.vir.exe
C:\Users\Admin\AppData\Local\Temp\grabbot_0.1.4.0.vir.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\system32\svchost.exe"
4⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:676

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/676-7-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/676-8-0x000000001000B2CB-mapping.dmp

Download
memory/676-9-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/1320-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1320-1-0x0000000000412110-mapping.dmp

Download
memory/1320-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1320-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1400-3-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1400-5-0x0000000000404760-mapping.dmp

Download
memory/1400-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads