da0fe98ee2da7e9c071aba8565fe4cb915a45cdaf27dffdcf1f604db8fa5e85c

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2024, 04:44

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General

Target

026bddb8a2649f9a296d58fa64958130N.exe
Size

38KB
MD5

026bddb8a2649f9a296d58fa64958130
SHA1

72a05ce5a022fd36c367b295d4cc60c532037bde
SHA256

da0fe98ee2da7e9c071aba8565fe4cb915a45cdaf27dffdcf1f604db8fa5e85c
SHA512

e62a80a9cade95eb05d8a57500102e2ac7cb8bfd128d93df6793506f181881323dff38ba1e20a76cc145ba9942454f2a26d372248c73c38c10d5bbe4bdca4044
SSDEEP

768:Nzj1JegVa3Gry+uELEmITCs/NUZ6nZdYbCLECkrQoP9fmF2f1cOf:NWQa2TLEmITcoQxfllfmS1cOf

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
4260	smss.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1292-0-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/files/0x00080000000234da-5.dat	upx
behavioral2/memory/1292-11-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/memory/4260-13-0x0000000000400000-0x0000000000422000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\Service.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	026bddb8a2649f9a296d58fa64958130N.exe

Launches sc.exe 2 IoCs

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

pid	Process
2276	sc.exe
228	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	026bddb8a2649f9a296d58fa64958130N.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
1292	026bddb8a2649f9a296d58fa64958130N.exe
4260	smss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 2276	1292	026bddb8a2649f9a296d58fa64958130N.exe	83
PID 1292 wrote to memory of 2276	1292	026bddb8a2649f9a296d58fa64958130N.exe	83
PID 1292 wrote to memory of 2276	1292	026bddb8a2649f9a296d58fa64958130N.exe	83
PID 1292 wrote to memory of 4260	1292	026bddb8a2649f9a296d58fa64958130N.exe	85
PID 1292 wrote to memory of 4260	1292	026bddb8a2649f9a296d58fa64958130N.exe	85
PID 1292 wrote to memory of 4260	1292	026bddb8a2649f9a296d58fa64958130N.exe	85
PID 4260 wrote to memory of 228	4260	smss.exe	86
PID 4260 wrote to memory of 228	4260	smss.exe	86
PID 4260 wrote to memory of 228	4260	smss.exe	86

C:\Users\Admin\AppData\Local\Temp\026bddb8a2649f9a296d58fa64958130N.exe
"C:\Users\Admin\AppData\Local\Temp\026bddb8a2649f9a296d58fa64958130N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2276
- 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:4260
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:228

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
38KB

MD5
96ac46b059c706aa24eab0f0550dfb51

SHA1
19fc5c8fa966f709a7a739aecad5d7f2d8a49621

SHA256
1d0674f371394100fa42930dff5651dbaeef002c3bf059643bb93586084ac705

SHA512
ea5ac8358b4bf96f5fdb548cb33980e3f178cf90bf94b02545499c9b9f0833cec95bbc44263c725696fe328e017e83eaf603a872d26a85a4f2587f20cb766482

Download Submit
memory/1292-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1292-11-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4260-13-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download