c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc

General

Target

c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
Size

237KB
MD5

812e1c82f7ff475fc940f33e6ef5d4ba
SHA1

dfdb04d398d101648453a96bf3b1ee9a99f7ee88
SHA256

c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc
SHA512

1733de0d696f7cd805fc020aeada4ff4f87bec733110c9d01a12b631a0198847caf922270a352a69fd4ec8ed7f87d5f93edc9fc8fb924924bc2c3e8d8fee3a61
SSDEEP

768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3ini2L2o27+IpF7wy4Vo2f:gMDgG4ChfiPOefgsOUqQwgU

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 5 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\fndfst32 = "C:\\Windows\\System\\fndfst32.exe"	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe"	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe"	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe"	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe

Drops file in Windows directory 14 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Syssrc32.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File opened for modification	C:\Windows\System\fndfst32.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File created	C:\Windows\System\fndfst32.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File opened for modification	C:\Windows\Help\intret.cnt	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File opened for modification	C:\Windows\System\applets.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File created	C:\Windows\System\Explorer.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File created	C:\Windows\System\mplayerw.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File created	C:\Windows\Syssrc32.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File opened for modification	C:\Windows\System\Sysexp32.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File created	C:\Windows\System\Sysexp32.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File opened for modification	C:\Windows\System\mplayerw.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File created	C:\Windows\Help\intret.cnt	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File created	C:\Windows\System\applets.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
File opened for modification	C:\Windows\System\Explorer.exe	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1964	1428	WerFault.exe	25

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1"	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1"	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 1964	1428	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe	26
PID 1428 wrote to memory of 1964	1428	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe	26
PID 1428 wrote to memory of 1964	1428	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe	26
PID 1428 wrote to memory of 1964	1428	c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe	26

C:\Users\Admin\AppData\Local\Temp\c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe
"C:\Users\Admin\AppData\Local\Temp\c3af7cdb8942e3c3332600b84b2fe5190da5d74d5704ee09a611dd05c9efc7dc.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1428 -s 92
  2⤵
  - Program crash
  PID:1964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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