0a1c7e5386725b08208987b6e03f75dc5391259a94eab600a20ce1735d441786

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
2756	smss.exe

Loads dropped DLL 2 IoCs

pid	Process
2264	562ce5b8c2c4711e781c8453e836a0d0N.exe
2264	562ce5b8c2c4711e781c8453e836a0d0N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2264-0-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral1/memory/2756-15-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral1/files/0x0008000000017409-9.dat	upx
behavioral1/memory/2264-18-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral1/memory/2756-19-0x0000000000400000-0x0000000000423000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

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

Launches sc.exe 2 IoCs

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

pid	Process
2780	sc.exe
2696	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	562ce5b8c2c4711e781c8453e836a0d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smss.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2264	562ce5b8c2c4711e781c8453e836a0d0N.exe
2756	smss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2696	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	30
PID 2264 wrote to memory of 2696	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	30
PID 2264 wrote to memory of 2696	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	30
PID 2264 wrote to memory of 2696	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	30
PID 2264 wrote to memory of 2756	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	32
PID 2264 wrote to memory of 2756	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	32
PID 2264 wrote to memory of 2756	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	32
PID 2264 wrote to memory of 2756	2264	562ce5b8c2c4711e781c8453e836a0d0N.exe	32
PID 2756 wrote to memory of 2780	2756	smss.exe	33
PID 2756 wrote to memory of 2780	2756	smss.exe	33
PID 2756 wrote to memory of 2780	2756	smss.exe	33
PID 2756 wrote to memory of 2780	2756	smss.exe	33

C:\Users\Admin\AppData\Local\Temp\562ce5b8c2c4711e781c8453e836a0d0N.exe
"C:\Users\Admin\AppData\Local\Temp\562ce5b8c2c4711e781c8453e836a0d0N.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:2264
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- 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:2756
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2780

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

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

Filesize
133KB

MD5
a4f8d33ce85107db3d907466cafb1607

SHA1
5f6430ec8e5e66e510bf19ffb5530e8d43ee74e4

SHA256
bf3bb58563016bd2992e1a86599cbb3d9a09a19ec5d8a5c90517df6081e63380

SHA512
73a78b7190b56fdb8591ce96425f01522a8ec11da48455c07d8db0364671abee82ed6d1b8a07b879bb4d1010c018e82c1be6c25bddb452d1f43dccfbee69edd8

Download Submit
memory/2264-0-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/2264-13-0x00000000006B0000-0x00000000006D3000-memory.dmp

Filesize
140KB

Download
memory/2264-12-0x00000000006B0000-0x00000000006D3000-memory.dmp

Filesize
140KB

Download
memory/2264-18-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/2756-15-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/2756-19-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download

Analysis

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