c80e667a05c4f261dd175c01e06e40b68bac91632dde469ea0b00b6adece9a26

Analysis

max time kernel
115s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 17:31

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General

Target

7608c5ad7401ed4b83ea421bb2075780N.exe
Size

38KB
MD5

7608c5ad7401ed4b83ea421bb2075780
SHA1

a701b2ebadc6b13137185a77ed8861526f510410
SHA256

c80e667a05c4f261dd175c01e06e40b68bac91632dde469ea0b00b6adece9a26
SHA512

0f40a898007f51f67939947e7a4d73472a20c7bb5fb129b69ca8be8fc8adfbbb28316d8577b75279415a9e93b9c7916ae907f18a4cd16db38ccec9899bb0d76c
SSDEEP

768:Nzj1JegVa3Gry+uELEmITCs/NUZ6nZdYbCLECkrQoP9fmF2f1cONEIV:NWQa2TLEmITcoQxfllfmS1cOeIV

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
4232	smss.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4832-0-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/files/0x0007000000023631-5.dat	upx
behavioral2/memory/4832-11-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/memory/4232-13-0x0000000000400000-0x0000000000422000-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	7608c5ad7401ed4b83ea421bb2075780N.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
2684	sc.exe
4244	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	7608c5ad7401ed4b83ea421bb2075780N.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
4832	7608c5ad7401ed4b83ea421bb2075780N.exe
4232	smss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 2684	4832	7608c5ad7401ed4b83ea421bb2075780N.exe	90
PID 4832 wrote to memory of 2684	4832	7608c5ad7401ed4b83ea421bb2075780N.exe	90
PID 4832 wrote to memory of 2684	4832	7608c5ad7401ed4b83ea421bb2075780N.exe	90
PID 4832 wrote to memory of 4232	4832	7608c5ad7401ed4b83ea421bb2075780N.exe	92
PID 4832 wrote to memory of 4232	4832	7608c5ad7401ed4b83ea421bb2075780N.exe	92
PID 4832 wrote to memory of 4232	4832	7608c5ad7401ed4b83ea421bb2075780N.exe	92
PID 4232 wrote to memory of 4244	4232	smss.exe	93
PID 4232 wrote to memory of 4244	4232	smss.exe	93
PID 4232 wrote to memory of 4244	4232	smss.exe	93

C:\Users\Admin\AppData\Local\Temp\7608c5ad7401ed4b83ea421bb2075780N.exe
"C:\Users\Admin\AppData\Local\Temp\7608c5ad7401ed4b83ea421bb2075780N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- 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:4232
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:4244

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3708,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4512 /prefetch:8
1⤵
PID:3036

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
f827d045a937dfc1672dac74c94e2a32

SHA1
c95ea987653a833da9c70793f11b5f33245522ad

SHA256
2cc39806d4c336a4f90c474678de57d06588133e849e8ab345be634249de3581

SHA512
7e770dd64af958a495e8789e25636304184e248cf44847bcde35c333db1f43e5fc6fa4457979ab410d3b090258fd5df01e4a76704759e1b0e03c827959f1f2e0

Download Submit
memory/4232-13-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4832-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4832-11-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download