b96212766a82e731499c7b88be2e7278c3ce822d85ee741e87012e731b977156

Analysis

max time kernel
141s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2024 13:59

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General

Target

4ba0cc089ed496c961cf33032059a03a.exe
Size

24KB
MD5

4ba0cc089ed496c961cf33032059a03a
SHA1

a15a24b8d91378798c10b07dbb72c611a68677e2
SHA256

b96212766a82e731499c7b88be2e7278c3ce822d85ee741e87012e731b977156
SHA512

4715bd9b7e1bca0d54d146c63333281d6a1de736012d757831196af83ec82397a88fe811e4e3772b932ec964071c3eaae3b5aa2f74ee1d06eea41e8dc5ba664c
SSDEEP

384:Zs9bA+OGA1A5kVOp7gcd6LN4yLJ0yCPby2B4CluRDX+TpS0Ga:Zs9c+7J0OpF6RHl0yCPb3xluRCTy

Score

8^/10

persistence

Malware Config

Signatures

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\msupdate\ImagePath = "c:\\windows\\system32\\mssrv32.exe"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\mssrv32.exe	4ba0cc089ed496c961cf33032059a03a.exe
File opened for modification	\??\c:\windows\SysWOW64\mssrv32.exe	4ba0cc089ed496c961cf33032059a03a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 1084	2128	4ba0cc089ed496c961cf33032059a03a.exe	18

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	4ba0cc089ed496c961cf33032059a03a.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2128	2288	4ba0cc089ed496c961cf33032059a03a.exe	22
PID 2288 wrote to memory of 2128	2288	4ba0cc089ed496c961cf33032059a03a.exe	22
PID 2288 wrote to memory of 2128	2288	4ba0cc089ed496c961cf33032059a03a.exe	22
PID 2128 wrote to memory of 1084	2128	4ba0cc089ed496c961cf33032059a03a.exe	18
PID 2128 wrote to memory of 1084	2128	4ba0cc089ed496c961cf33032059a03a.exe	18
PID 2128 wrote to memory of 1084	2128	4ba0cc089ed496c961cf33032059a03a.exe	18
PID 2128 wrote to memory of 1084	2128	4ba0cc089ed496c961cf33032059a03a.exe	18

C:\Users\Admin\AppData\Local\Temp\4ba0cc089ed496c961cf33032059a03a.exe
"C:\Users\Admin\AppData\Local\Temp\4ba0cc089ed496c961cf33032059a03a.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2288
- \??\c:\users\admin\appdata\local\temp\4ba0cc089ed496c961cf33032059a03a.exe
  c:\users\admin\appdata\local\temp\4ba0cc089ed496c961cf33032059a03a.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2128

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
1⤵
- Sets service image path in registry
PID:1084

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1084-5-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/1084-9-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/2128-4-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/2128-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2288-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2288-2-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads