3298d295282e6eb49356e08f55a19ccbd459b78e5a6003aa97d181fd46504303

General

Target

39350f1e07377b2e137d5b675f2ae6f0.exe
Size

3.6MB
MD5

39350f1e07377b2e137d5b675f2ae6f0
SHA1

e28004672640158dd23b18ac324882eedec6fce1
SHA256

3298d295282e6eb49356e08f55a19ccbd459b78e5a6003aa97d181fd46504303
SHA512

3b920669b59ce8962c2c1167a23b2ce5ab92177f29702ae192dc3c2e90642e3500055e03f88f4f19369723f5024e1113b6421fe960666671e0235c87386fd640
SSDEEP

98304:/LtxIGkUF4G/InbtqUxvtxV2zVy36REGL3oHPuHf:iUF4TbcUxVmU36RloHPQf

Score

8^/10

evasion persistence

Malware Config

Signatures

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
4344	netsh.exe

Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Uses Session Manager for persistence 2 TTPs 3 IoCs

Creates Session Manager registry key to run executable early in system boot.

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Session Manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000	reg.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Session Manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000	reg.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\Control\Session manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000	reg.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows32 = "C:\\windows\\system\\system.exe"	39350f1e07377b2e137d5b675f2ae6f0.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\autoconvv.RRI	39350f1e07377b2e137d5b675f2ae6f0.exe
File opened for modification	\??\c:\windows\SysWOW64\autoconvv.RRI	39350f1e07377b2e137d5b675f2ae6f0.exe
File created	C:\Windows\SysWOW64\reg_0001.txt	39350f1e07377b2e137d5b675f2ae6f0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32AntiDelete	39350f1e07377b2e137d5b675f2ae6f0.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2896	sc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4732	39350f1e07377b2e137d5b675f2ae6f0.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 2896	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	90
PID 4732 wrote to memory of 2896	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	90
PID 4732 wrote to memory of 2896	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	90
PID 4732 wrote to memory of 4668	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	91
PID 4732 wrote to memory of 4668	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	91
PID 4732 wrote to memory of 4668	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	91
PID 4732 wrote to memory of 3624	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	92
PID 4732 wrote to memory of 3624	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	92
PID 4732 wrote to memory of 3624	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	92
PID 4732 wrote to memory of 3568	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	93
PID 4732 wrote to memory of 3568	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	93
PID 4732 wrote to memory of 3568	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	93
PID 4732 wrote to memory of 4344	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	94
PID 4732 wrote to memory of 4344	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	94
PID 4732 wrote to memory of 4344	4732	39350f1e07377b2e137d5b675f2ae6f0.exe	94

C:\Users\Admin\AppData\Local\Temp\39350f1e07377b2e137d5b675f2ae6f0.exe
"C:\Users\Admin\AppData\Local\Temp\39350f1e07377b2e137d5b675f2ae6f0.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4732
- C:\Windows\SysWOW64\sc.exe
  sc delete GbpSv
  2⤵
  - Launches sc.exe
  PID:2896
- C:\Windows\SysWOW64\reg.exe
  reg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
  2⤵
  - Uses Session Manager for persistence
  PID:4668
- C:\Windows\SysWOW64\reg.exe
  reg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
  2⤵
  - Uses Session Manager for persistence
  PID:3624
- C:\Windows\SysWOW64\reg.exe
  reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
  2⤵
  - Uses Session Manager for persistence
  PID:3568
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram C:\windows\system\system.exe RPCCC
  2⤵
  - Modifies Windows Firewall
  PID:4344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

Replay Monitor

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Downloads

memory/4732-0-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-1-0x0000000000AB0000-0x0000000000AB2000-memory.dmp

Filesize
8KB

Download
memory/4732-2-0x0000000000C20000-0x0000000000C21000-memory.dmp

Filesize
4KB

Download
memory/4732-3-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-4-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-5-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-6-0x0000000000AB0000-0x0000000000AB2000-memory.dmp

Filesize
8KB

Download
memory/4732-7-0x0000000000C20000-0x0000000000C21000-memory.dmp

Filesize
4KB

Download
memory/4732-9-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-10-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-12-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-13-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-14-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-16-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download
memory/4732-18-0x0000000000400000-0x000000000091E000-memory.dmp

Filesize
5.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads