46802842ff967e3810af08e372b0f969de57f2ed826498398c5367525fec0bc9

General

Target
7C1D2A69302830D0236A008BA7F01875.exe
Size 5.6MB
Sample210328-nbb38aka56
SHA256 46802842ff967e3810af08e372b0f969de57f2ed826498398c5367525fec0bc9
MD5 7c1d2a69302830d0236a008ba7f01875
SHA1 d5eee45b4a4dead11c033b19d7ea861a740c37af
SHA512 fafdcbfa5865754f481529ef4ed1a293490c295dac4f80f7693bf692ddc725d6e27dd00f43b033d4ccfeebbf03c804ff82350ac1f3e7cb8a2d698efc0416c548
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
3128	Liwffbevb.exe
3176	Kksnalt.exe
3548	Gwlhtcwgmxoaz.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000100000001ab6e-10.dat	upx
behavioral2/files/0x000100000001ab6e-11.dat	upx

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Defender.exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Process.exe	cmd.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exe贀"	Kksnalt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exeꨀ"	Kksnalt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exe\ue700"	Kksnalt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exeԀ"	Kksnalt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exe䈀"	Kksnalt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exe缀"	Kksnalt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exe\u0a00"	Kksnalt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ValorantLoader = "C:\\Users\\Admin\\AppData\\Local\\gaming\\ValorantLoader.exe"	Kksnalt.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
3176	Kksnalt.exe
3176	Kksnalt.exe
3176	Kksnalt.exe
3176	Kksnalt.exe
3176	Kksnalt.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3176	Kksnalt.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3176	Kksnalt.exe
3176	Kksnalt.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 3128	540	7C1D2A69302830D0236A008BA7F01875.exe	75
PID 540 wrote to memory of 3128	540	7C1D2A69302830D0236A008BA7F01875.exe	75
PID 540 wrote to memory of 3128	540	7C1D2A69302830D0236A008BA7F01875.exe	75
PID 540 wrote to memory of 3176	540	7C1D2A69302830D0236A008BA7F01875.exe	76
PID 540 wrote to memory of 3176	540	7C1D2A69302830D0236A008BA7F01875.exe	76
PID 540 wrote to memory of 3176	540	7C1D2A69302830D0236A008BA7F01875.exe	76
PID 540 wrote to memory of 3548	540	7C1D2A69302830D0236A008BA7F01875.exe	77
PID 540 wrote to memory of 3548	540	7C1D2A69302830D0236A008BA7F01875.exe	77
PID 3548 wrote to memory of 2260	3548	Gwlhtcwgmxoaz.exe	78
PID 3548 wrote to memory of 2260	3548	Gwlhtcwgmxoaz.exe	78

C:\Users\Admin\AppData\Local\Temp\7C1D2A69302830D0236A008BA7F01875.exe
"C:\Users\Admin\AppData\Local\Temp\7C1D2A69302830D0236A008BA7F01875.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:540
- C:\Users\Admin\AppData\Local\Temp\Liwffbevb.exe
  "C:\Users\Admin\AppData\Local\Temp\Liwffbevb.exe"
  2⤵
  - Executes dropped EXE
  PID:3128
- C:\Users\Admin\AppData\Local\Temp\Kksnalt.exe
  "C:\Users\Admin\AppData\Local\Temp\Kksnalt.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3176
- C:\Users\Admin\AppData\Local\Temp\Gwlhtcwgmxoaz.exe
  "C:\Users\Admin\AppData\Local\Temp\Gwlhtcwgmxoaz.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3548
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\8255.tmp\8256.tmp\8257.bat C:\Users\Admin\AppData\Local\Temp\Gwlhtcwgmxoaz.exe"
    3⤵
    - Drops startup file
    PID:2260

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

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/540-2-0x00007FF9A85B0000-0x00007FF9A8F9C000-memory.dmp

Download

memory/540-5-0x000000001CCA0000-0x000000001CCA2000-memory.dmp

Download

memory/540-3-0x00000000006D0000-0x00000000006D1000-memory.dmp

Download

memory/3128-13-0x0000000073520000-0x0000000073C0E000-memory.dmp

Download

memory/3128-17-0x0000000000D70000-0x0000000000D71000-memory.dmp

Download

memory/3128-20-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

Download

memory/3128-25-0x00000000055F0000-0x00000000055F1000-memory.dmp

Download

memory/3128-26-0x00000000055E0000-0x00000000055E1000-memory.dmp

Download

memory/3128-27-0x0000000005750000-0x0000000005751000-memory.dmp

Download

memory/3128-28-0x0000000005753000-0x0000000005755000-memory.dmp

Download

memory/3548-16-0x0000000140000000-0x00000001403F4000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads