29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77

General

Target

29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe
Size

38KB
MD5

de9d5e97ca5a4ef53a573e896f2b0da0
SHA1

621153f89ebaa1164e433e6f08c69bd3e689f2c7
SHA256

29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77
SHA512

af3eb3a54ec191a86b620afbb5d95a632be9bc2f99b3cf1455dde72bd3a2235c12ebeaf00b82e1cc120e48c0274d8f2f13fad904f8e3e05b92d78c05cc05829a
SSDEEP

768:Nzj1JegVa3Gry+uELEmITCs/NUZ6nZdYbCLECkrQoP9fmF2f1cOe2:NWQa2TLEmITcoQxfllfmS1cOe2

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
2288	smss.exe

Loads dropped DLL 2 IoCs

pid	Process
2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe
2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/files/0x00070000000186de-9.dat	upx
behavioral1/memory/2196-20-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/memory/2288-18-0x0000000000400000-0x0000000000422000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.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
2784	sc.exe
2212	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	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe
2288	smss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2212	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	31
PID 2196 wrote to memory of 2212	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	31
PID 2196 wrote to memory of 2212	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	31
PID 2196 wrote to memory of 2212	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	31
PID 2196 wrote to memory of 2288	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	33
PID 2196 wrote to memory of 2288	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	33
PID 2196 wrote to memory of 2288	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	33
PID 2196 wrote to memory of 2288	2196	29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe	33
PID 2288 wrote to memory of 2784	2288	smss.exe	34
PID 2288 wrote to memory of 2784	2288	smss.exe	34
PID 2288 wrote to memory of 2784	2288	smss.exe	34
PID 2288 wrote to memory of 2784	2288	smss.exe	34

C:\Users\Admin\AppData\Local\Temp\29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.exe
"C:\Users\Admin\AppData\Local\Temp\29816ba5444d408c5f4c2d836a0c296a9c993de55b02184208e7fb568c0dca77N.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:2196
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2212
- 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:2288
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2784

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
38KB

MD5
58dcd5e2a14d8e3fa309566f6f60300a

SHA1
1e3e721790883c2f101687215457d2202bd3114d

SHA256
4f85894261cea99e426e5333fc49ab3d822cd1b193d25f4edf0b56acb29ce8c5

SHA512
46071b3fd6d366fb8a9ba7bfaf596e64826383bfbedb368d6e6148a2abad9e1bfd5def4609457b2fd955b5e57238644bdd58cf227f3f682ed5fe2ec25f30f3f3

Download Submit
memory/2196-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2196-12-0x0000000000510000-0x0000000000532000-memory.dmp

Filesize
136KB

Download
memory/2196-11-0x0000000000510000-0x0000000000532000-memory.dmp

Filesize
136KB

Download
memory/2196-20-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2288-18-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

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