0e8635946a6146db42d619edf9d5a27a0084d6b301647c8f4afdb67c304fc008

General

Target

NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe
Size

38KB
MD5

1ec45c64b94740d7cb77d53164128600
SHA1

c01cf7f8117e2c7cd9cb84a6168c5c6b6b11d23e
SHA256

0e8635946a6146db42d619edf9d5a27a0084d6b301647c8f4afdb67c304fc008
SHA512

1e6e438dbdef61cd87ac845bc379dcab6126dcc06d36e222ed5e3e0d53c42286f04b3cb2c459c485f070c355b917bcfc5012ccb499d69dd419e3dff6ba59324a
SSDEEP

768:Nzj1JegVa3Gry+uELEmITCs/NUZ6nZdYbCLECkrQoP9fmF2f1cOI:NWQa2TLEmITcoQxfllfmS1cOI

Score

8^/10

evasion upx

Malware Config

Signatures

Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Executes dropped EXE 1 IoCs

pid	Process
2648	smss.exe

Loads dropped DLL 2 IoCs

pid	Process
2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe
2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2016-0-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/memory/2016-2-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/memory/2016-4-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/files/0x0008000000016cac-7.dat	upx
behavioral1/files/0x0008000000016cac-13.dat	upx
behavioral1/files/0x0008000000016cac-12.dat	upx
behavioral1/files/0x0008000000016cac-9.dat	upx
behavioral1/files/0x0008000000016cac-16.dat	upx
behavioral1/memory/2016-18-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/memory/2648-19-0x0000000000400000-0x0000000000422000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Service.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	smss.exe

Launches sc.exe 2 IoCs

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

pid	Process
3028	sc.exe
2708	sc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe
2648	smss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 3028	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	29
PID 2016 wrote to memory of 3028	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	29
PID 2016 wrote to memory of 3028	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	29
PID 2016 wrote to memory of 3028	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	29
PID 2016 wrote to memory of 2648	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	31
PID 2016 wrote to memory of 2648	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	31
PID 2016 wrote to memory of 2648	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	31
PID 2016 wrote to memory of 2648	2016	NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe	31
PID 2648 wrote to memory of 2708	2648	smss.exe	32
PID 2648 wrote to memory of 2708	2648	smss.exe	32
PID 2648 wrote to memory of 2708	2648	smss.exe	32
PID 2648 wrote to memory of 2708	2648	smss.exe	32

C:\Users\Admin\AppData\Local\Temp\NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.1ec45c64b94740d7cb77d53164128600_JC.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  PID:3028
- C:\Windows\SysWOW64\1230\smss.exe
  C:\Windows\system32\1230\smss.exe -d
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

Replay Monitor

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Downloads

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

Filesize
38KB

MD5
53eb33d67bad0a03ecedace1cc847054

SHA1
9a48397e7739a39ac11a30f3bae515cdc472ca0e

SHA256
bad35e34a71bf350b8b5d0311772f64dc0153a7d38326384108eb00096c7f020

SHA512
d36e1f8ee3ab0fbb4b85522a8516aea1a3b739673aa7d6e13b566ae5a424e2d10c525a6a977a6f5bcb03ebf989eddb8076d8119bfef5007a616299f234bec49d

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

Filesize
38KB

MD5
53eb33d67bad0a03ecedace1cc847054

SHA1
9a48397e7739a39ac11a30f3bae515cdc472ca0e

SHA256
bad35e34a71bf350b8b5d0311772f64dc0153a7d38326384108eb00096c7f020

SHA512
d36e1f8ee3ab0fbb4b85522a8516aea1a3b739673aa7d6e13b566ae5a424e2d10c525a6a977a6f5bcb03ebf989eddb8076d8119bfef5007a616299f234bec49d

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

Filesize
38KB

MD5
53eb33d67bad0a03ecedace1cc847054

SHA1
9a48397e7739a39ac11a30f3bae515cdc472ca0e

SHA256
bad35e34a71bf350b8b5d0311772f64dc0153a7d38326384108eb00096c7f020

SHA512
d36e1f8ee3ab0fbb4b85522a8516aea1a3b739673aa7d6e13b566ae5a424e2d10c525a6a977a6f5bcb03ebf989eddb8076d8119bfef5007a616299f234bec49d

Download Submit
\Windows\SysWOW64\1230\smss.exe

Filesize
38KB

MD5
53eb33d67bad0a03ecedace1cc847054

SHA1
9a48397e7739a39ac11a30f3bae515cdc472ca0e

SHA256
bad35e34a71bf350b8b5d0311772f64dc0153a7d38326384108eb00096c7f020

SHA512
d36e1f8ee3ab0fbb4b85522a8516aea1a3b739673aa7d6e13b566ae5a424e2d10c525a6a977a6f5bcb03ebf989eddb8076d8119bfef5007a616299f234bec49d

Download Submit
\Windows\SysWOW64\1230\smss.exe

Filesize
38KB

MD5
53eb33d67bad0a03ecedace1cc847054

SHA1
9a48397e7739a39ac11a30f3bae515cdc472ca0e

SHA256
bad35e34a71bf350b8b5d0311772f64dc0153a7d38326384108eb00096c7f020

SHA512
d36e1f8ee3ab0fbb4b85522a8516aea1a3b739673aa7d6e13b566ae5a424e2d10c525a6a977a6f5bcb03ebf989eddb8076d8119bfef5007a616299f234bec49d

Download Submit
memory/2016-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2016-2-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2016-4-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2016-18-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2648-19-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

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