b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c

Analysis

max time kernel
153s
max time network
197s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 21:43

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General

Target

b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
Size

213KB
MD5

4a1a5879dc50ea99e88da5f3f2f31028
SHA1

c50ee83873194c1463b0eb8aae03057ca87cc110
SHA256

b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c
SHA512

8fb61680985fe1c0e9e067b48faf18e9a4e51851c637a1d350ef0ee0225d38269c72b01e7c2aa3f6a9ba2c22e38a8d51b2782adc6543b258472a574f542a9ab0
SSDEEP

6144:v+ouZ4MWt9KK6nyocU9xQR9JWO8u1leDlYK:I4MW7K7yRU9xUnWySDlYK

Score

8^/10

persistence upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/632-133-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/632-135-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/632-136-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/632-139-0x0000000000400000-0x0000000000453000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Updates = "c:\\windows\\system\\Update.exe"	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Updates = "c:\\windows\\system\\Update.exe"	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\SysWOW64\MSWINSCK.OCX	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4916 set thread context of 632	4916	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe	82

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\system\Update.exe	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
File opened for modification	\??\c:\windows\system\Update.exe	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
632	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 632	4916	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe	82
PID 4916 wrote to memory of 632	4916	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe	82
PID 4916 wrote to memory of 632	4916	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe	82
PID 4916 wrote to memory of 632	4916	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe	82
PID 4916 wrote to memory of 632	4916	b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe	82

C:\Users\Admin\AppData\Local\Temp\b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
"C:\Users\Admin\AppData\Local\Temp\b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Users\Admin\AppData\Local\Temp\b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
  C:\Users\Admin\AppData\Local\Temp\b7a196cd79608e4436637512ce7b6944e70a43c0b402c2449bf9fdd9abb5608c.exe
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:632

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/632-133-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/632-135-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/632-136-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/632-139-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download