0a1c7e5386725b08208987b6e03f75dc5391259a94eab600a20ce1735d441786

Analysis

max time kernel
91s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2024, 01:05

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General

Target

562ce5b8c2c4711e781c8453e836a0d0N.exe
Size

133KB
MD5

562ce5b8c2c4711e781c8453e836a0d0
SHA1

b102d55d483c738b8ce935d85c3b8ca47b34e76c
SHA256

0a1c7e5386725b08208987b6e03f75dc5391259a94eab600a20ce1735d441786
SHA512

58b35607bd4674f92c8097f97e8c61d40d889bd40c292c0dfe930933c5d4ca79654c66a800061ea0a3d3df0f0859a3a428df2d42fc5320a38bef83d0b7c72baf
SSDEEP

3072:FE9j8b3ZXgKC1hX//iASOXRJzDOD26jKNmmuctD:FEebiKuX//iZOXRJ3OD26jOD

Score

8^/10

discovery evasion execution upx

Malware Config

Signatures

Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Executes dropped EXE 1 IoCs

pid	Process
3024	smss.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2596-0-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/files/0x00080000000234b9-5.dat	upx
behavioral2/memory/2596-10-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/3024-11-0x0000000000400000-0x0000000000423000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\Service.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	562ce5b8c2c4711e781c8453e836a0d0N.exe

Launches sc.exe 2 IoCs

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

pid	Process
1884	sc.exe
4720	sc.exe

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	smss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	562ce5b8c2c4711e781c8453e836a0d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2596	562ce5b8c2c4711e781c8453e836a0d0N.exe
3024	smss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 1884	2596	562ce5b8c2c4711e781c8453e836a0d0N.exe	86
PID 2596 wrote to memory of 1884	2596	562ce5b8c2c4711e781c8453e836a0d0N.exe	86
PID 2596 wrote to memory of 1884	2596	562ce5b8c2c4711e781c8453e836a0d0N.exe	86
PID 2596 wrote to memory of 3024	2596	562ce5b8c2c4711e781c8453e836a0d0N.exe	88
PID 2596 wrote to memory of 3024	2596	562ce5b8c2c4711e781c8453e836a0d0N.exe	88
PID 2596 wrote to memory of 3024	2596	562ce5b8c2c4711e781c8453e836a0d0N.exe	88
PID 3024 wrote to memory of 4720	3024	smss.exe	89
PID 3024 wrote to memory of 4720	3024	smss.exe	89
PID 3024 wrote to memory of 4720	3024	smss.exe	89

C:\Users\Admin\AppData\Local\Temp\562ce5b8c2c4711e781c8453e836a0d0N.exe
"C:\Users\Admin\AppData\Local\Temp\562ce5b8c2c4711e781c8453e836a0d0N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1884
- C:\Windows\SysWOW64\1230\smss.exe
  C:\Windows\system32\1230\smss.exe -d
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:4720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Windows\SysWOW64\1230\smss.exe

Filesize
133KB

MD5
0ed9649e215badd01a8b7b30896f75a6

SHA1
ff5d2e00add766a6c0a27d2dea0b0c1ac336ec0b

SHA256
5c437f5a07dcef853f150b0be38c8631bee22a918b4258b3d91e1e307c695d68

SHA512
e96439fc828b975c4df572a9382eb9ee287170e6182035876db3c13aab75f2f6427421b7f6002fa7774866ab3c277323ac2cf854cfc4851f2df1bc72071b7df2

Download Submit
memory/2596-0-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/2596-10-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/3024-11-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download