53dbb5cbdac70dbc4908f35b43422fef6e815293a5b52b1510019ae8edf152e6

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 09:13

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General

Target

143494df232b8557a44bdb8cdbbe5bc6.exe
Size

40KB
MD5

143494df232b8557a44bdb8cdbbe5bc6
SHA1

0eb748f10fa39cbf69a69f9a2d136162e9f16d79
SHA256

53dbb5cbdac70dbc4908f35b43422fef6e815293a5b52b1510019ae8edf152e6
SHA512

ab138410cdf548d79d7fa442342d18f2b00e7e259ea29ee204393b31f60b2bc7ffa9b211ec348ab9ba7299cdcb49427a61d2f9fcb07ca699c4d56ec039538180
SSDEEP

768:hitbxiMfKAvefJ9PS9MPNrW1WUMZ38TXkY0XfaKrj4MxoviBlUtN1UEMxA54q:QvFef3AaWWUMCTwfH8MqslU/VIA5

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2636	windspl.exe

Loads dropped DLL 2 IoCs

pid	Process
2228	143494df232b8557a44bdb8cdbbe5bc6.exe
2228	143494df232b8557a44bdb8cdbbe5bc6.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2228-0-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral1/files/0x0009000000012270-4.dat	upx
behavioral1/memory/2228-11-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral1/memory/2636-15-0x0000000000400000-0x0000000000415000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\DsplObjects = "C:\\Windows\\system32\\windspl.exe"	143494df232b8557a44bdb8cdbbe5bc6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\DsplObjects = "C:\\Windows\\system32\\windspl.exe"	windspl.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\windspl.exe	143494df232b8557a44bdb8cdbbe5bc6.exe
File created	C:\Windows\SysWOW64\windspl.exe	143494df232b8557a44bdb8cdbbe5bc6.exe
File opened for modification	C:\Windows\SysWOW64\windspl.exe	windspl.exe
File created	C:\Windows\SysWOW64\windspl.exe	windspl.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	143494df232b8557a44bdb8cdbbe5bc6.exe
Token: SeDebugPrivilege	2636	windspl.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2636	2228	143494df232b8557a44bdb8cdbbe5bc6.exe	28
PID 2228 wrote to memory of 2636	2228	143494df232b8557a44bdb8cdbbe5bc6.exe	28
PID 2228 wrote to memory of 2636	2228	143494df232b8557a44bdb8cdbbe5bc6.exe	28
PID 2228 wrote to memory of 2636	2228	143494df232b8557a44bdb8cdbbe5bc6.exe	28

C:\Users\Admin\AppData\Local\Temp\143494df232b8557a44bdb8cdbbe5bc6.exe
"C:\Users\Admin\AppData\Local\Temp\143494df232b8557a44bdb8cdbbe5bc6.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\SysWOW64\windspl.exe
  "C:\Windows\system32\windspl.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2636

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

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Downloads

\Windows\SysWOW64\windspl.exe

Filesize
40KB

MD5
143494df232b8557a44bdb8cdbbe5bc6

SHA1
0eb748f10fa39cbf69a69f9a2d136162e9f16d79

SHA256
53dbb5cbdac70dbc4908f35b43422fef6e815293a5b52b1510019ae8edf152e6

SHA512
ab138410cdf548d79d7fa442342d18f2b00e7e259ea29ee204393b31f60b2bc7ffa9b211ec348ab9ba7299cdcb49427a61d2f9fcb07ca699c4d56ec039538180

Download Submit
memory/2228-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2228-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2228-12-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/2636-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads