cdd3ecb63c30de836ab13f573ec82faa0688a3e5ea7e54d2178f984cf709c5c6

Analysis

max time kernel
120s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01-09-2024 16:32

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General

Target

c5604fa1cf8d82960162ef353e072ee0N.exe
Size

85KB
MD5

c5604fa1cf8d82960162ef353e072ee0
SHA1

8748c8d9bd5aaa5d2037d1c92b84db048deb789f
SHA256

cdd3ecb63c30de836ab13f573ec82faa0688a3e5ea7e54d2178f984cf709c5c6
SHA512

f840219065d07fa9f5d49b30bd9a142ead388f3d0020a0359d1f0913c69c48792de0506864d91816601509cf9f4af9038e9c9921e70de3893101891c1a70a2f9
SSDEEP

1536:lXEN0rlw3e63tlxIHR6xSA7TWCDYAwNKUEiVghzCcnuaukliBLzQcOOGfbfpZJsV:lnw3DI6xd2Wxco

Score

7^/10

persistence

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\simple.lnk	system.exe

Executes dropped EXE 2 IoCs

pid	Process
2304	system.exe
2684	system.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\systems = "C:\\Users\\Public\\Services\\system.exe"	system.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\Users\Public\Services\killer\desktop.ini	system.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1908	c5604fa1cf8d82960162ef353e072ee0N.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe
2304	system.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2304	system.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1908	c5604fa1cf8d82960162ef353e072ee0N.exe
Token: SeDebugPrivilege	2304	system.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 2304	1908	c5604fa1cf8d82960162ef353e072ee0N.exe	31
PID 1908 wrote to memory of 2304	1908	c5604fa1cf8d82960162ef353e072ee0N.exe	31
PID 1908 wrote to memory of 2304	1908	c5604fa1cf8d82960162ef353e072ee0N.exe	31
PID 2304 wrote to memory of 2684	2304	system.exe	32
PID 2304 wrote to memory of 2684	2304	system.exe	32
PID 2304 wrote to memory of 2684	2304	system.exe	32
PID 2684 wrote to memory of 2776	2684	system.exe	33
PID 2684 wrote to memory of 2776	2684	system.exe	33
PID 2684 wrote to memory of 2776	2684	system.exe	33

C:\Users\Admin\AppData\Local\Temp\c5604fa1cf8d82960162ef353e072ee0N.exe
"C:\Users\Admin\AppData\Local\Temp\c5604fa1cf8d82960162ef353e072ee0N.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Users\Public\Services\system.exe
  "C:\Users\Public\Services\system.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops desktop.ini file(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Users\Public\Services\system.exe
    "C:\Users\Public\Services\system.exe" help
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2684
  - - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
      dw20.exe -x -s 388
      4⤵
      PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Services\system.exe

Filesize
85KB

MD5
c5604fa1cf8d82960162ef353e072ee0

SHA1
8748c8d9bd5aaa5d2037d1c92b84db048deb789f

SHA256
cdd3ecb63c30de836ab13f573ec82faa0688a3e5ea7e54d2178f984cf709c5c6

SHA512
f840219065d07fa9f5d49b30bd9a142ead388f3d0020a0359d1f0913c69c48792de0506864d91816601509cf9f4af9038e9c9921e70de3893101891c1a70a2f9

Download Submit
memory/1908-0-0x000007FEF505E000-0x000007FEF505F000-memory.dmp

Filesize
4KB

Download
memory/1908-1-0x000007FEF4DA0000-0x000007FEF573D000-memory.dmp

Filesize
9.6MB

Download
memory/1908-2-0x000007FEF4DA0000-0x000007FEF573D000-memory.dmp

Filesize
9.6MB

Download
memory/1908-12-0x000007FEF4DA0000-0x000007FEF573D000-memory.dmp

Filesize
9.6MB

Download
memory/2304-11-0x000007FEF4DA0000-0x000007FEF573D000-memory.dmp

Filesize
9.6MB

Download
memory/2304-13-0x000007FEF4DA0000-0x000007FEF573D000-memory.dmp

Filesize
9.6MB

Download