2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4

General

Target

2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe
Size

39KB
MD5

25cb5edb2bf6b21529f2d430c34714a6
SHA1

c8a37bf9c59dcea7d09156906a488a2cd4fa637d
SHA256

2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4
SHA512

940f67f6ed675b400ba8425d4cc7bbc9340f6a6b07f063d8b65a163035af22977ffd4d156a0ab907124e23704859d9b85305297c31549e1ecfc03341de731443
SSDEEP

768:Nzj1JegVa3Gry+uELEmITCs/NUZ6nZdYbCLECkrQoP9fmF2f1cOGue:NWQa2TLEmITcoQxfllfmS1cO6

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
2724	smss.exe

Loads dropped DLL 2 IoCs

pid	Process
2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe
2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\Service.exe	smss.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2408-0-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/files/0x0008000000016ce9-4.dat	upx
behavioral1/memory/2724-13-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/memory/2408-19-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/memory/2724-21-0x0000000000400000-0x0000000000422000-memory.dmp	upx

Launches sc.exe 2 IoCs

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

pid	Process
2312	sc.exe
2148	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smss.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe
2724	smss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2312	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	30
PID 2408 wrote to memory of 2312	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	30
PID 2408 wrote to memory of 2312	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	30
PID 2408 wrote to memory of 2312	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	30
PID 2408 wrote to memory of 2724	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	32
PID 2408 wrote to memory of 2724	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	32
PID 2408 wrote to memory of 2724	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	32
PID 2408 wrote to memory of 2724	2408	2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe	32
PID 2724 wrote to memory of 2148	2724	smss.exe	33
PID 2724 wrote to memory of 2148	2724	smss.exe	33
PID 2724 wrote to memory of 2148	2724	smss.exe	33
PID 2724 wrote to memory of 2148	2724	smss.exe	33

C:\Users\Admin\AppData\Local\Temp\2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe
"C:\Users\Admin\AppData\Local\Temp\2d8e92ce3c7766133446503526eb981b35e8d364057375badb421cffc537dee4.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2312
- 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:2724
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

Replay Monitor

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Downloads

\Windows\SysWOW64\1230\smss.exe

Filesize
39KB

MD5
f1a57adcb1c9de6f76272908930f0cdf

SHA1
4ea1df84aefa1f5ab697148b99ccb67e125537a5

SHA256
b30222d0ae0e262f316230a7cd200c00aeb06cc13c49286cc2a2e4cf2904539f

SHA512
179680e592acf6136cce919d86780ff709cdedd24d502e781538d444f01c21dfcc05fd5c87f1c7f79e8d71e7ad99dfab72a4cd79868e5993fda96f3de6665ac1

Download Submit
memory/2408-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2408-11-0x0000000001E60000-0x0000000001E82000-memory.dmp

Filesize
136KB

Download
memory/2408-10-0x0000000001E60000-0x0000000001E82000-memory.dmp

Filesize
136KB

Download
memory/2408-19-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2724-13-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2724-21-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

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