27c4a4b2d9ec06ee1ba4561a7f40afd73f2355c04ffc70f93f76a14bca83995b

Analysis

max time kernel
150s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 21:31

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General

Target

3d9353a4ff2fe5706557b3697c78da6b.exe
Size

150KB
MD5

3d9353a4ff2fe5706557b3697c78da6b
SHA1

4bea3f7b8aee3ca521bac17b5310f8ac36640c89
SHA256

27c4a4b2d9ec06ee1ba4561a7f40afd73f2355c04ffc70f93f76a14bca83995b
SHA512

3ea64fe07c12f9d722ed29fdf4450307393984a4ef834ddb91c1d19590332ee75e931e6c02988ac69096a4059d0bf40ce68be3589779569aa3a0dba438c4b000
SSDEEP

3072:L53L2qq0Z8k93xF26rBSPoV+gRh8BqelFW6++0vvOTYsSNwR9q5F:ZLHq0Z8k92iBSPoV+gRh8celb++0vvOy

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1636	Aa6XwC.pif

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2232-0-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral2/files/0x0006000000023204-7.dat	upx
behavioral2/memory/2232-12-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral2/memory/1636-13-0x0000000000400000-0x0000000000458000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Afd3CChZj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Aa6XwC.pif\""	3d9353a4ff2fe5706557b3697c78da6b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Ntjh20qQk = "\"C:\\Users\\Admin\\AppData\\Roaming\\Aa6XwC.pif\""	Aa6XwC.pif
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CxW9sAiO = "\"C:\\Users\\Admin\\AppData\\Roaming\\Aa6XwC.pif\""	Aa6XwC.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\j5msHr = "\"C:\\Users\\Admin\\AppData\\Roaming\\Aa6XwC.pif\""	3d9353a4ff2fe5706557b3697c78da6b.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\win.com	3d9353a4ff2fe5706557b3697c78da6b.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
2232	3d9353a4ff2fe5706557b3697c78da6b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2232	3d9353a4ff2fe5706557b3697c78da6b.exe
1636	Aa6XwC.pif

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 1636	2232	3d9353a4ff2fe5706557b3697c78da6b.exe	91
PID 2232 wrote to memory of 1636	2232	3d9353a4ff2fe5706557b3697c78da6b.exe	91
PID 2232 wrote to memory of 1636	2232	3d9353a4ff2fe5706557b3697c78da6b.exe	91

C:\Users\Admin\AppData\Local\Temp\3d9353a4ff2fe5706557b3697c78da6b.exe
"C:\Users\Admin\AppData\Local\Temp\3d9353a4ff2fe5706557b3697c78da6b.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Roaming\Aa6XwC.pif
  C:\Users\Admin\AppData\Roaming\Aa6XwC.pif
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:1636

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Aa6XwC.pif

Filesize
150KB

MD5
3d9353a4ff2fe5706557b3697c78da6b

SHA1
4bea3f7b8aee3ca521bac17b5310f8ac36640c89

SHA256
27c4a4b2d9ec06ee1ba4561a7f40afd73f2355c04ffc70f93f76a14bca83995b

SHA512
3ea64fe07c12f9d722ed29fdf4450307393984a4ef834ddb91c1d19590332ee75e931e6c02988ac69096a4059d0bf40ce68be3589779569aa3a0dba438c4b000

Download Submit
memory/1636-13-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2232-0-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2232-12-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download