bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9

Analysis

max time kernel
191s
max time network
208s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 21:35

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General

Target

bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
Size

217KB
MD5

80bf396917793f28cfb3ffee6677b622
SHA1

3f5f31742856e11b1fad73ea83d6faa7bdd82e90
SHA256

bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9
SHA512

063c1284ade50210ca1cc6f39345b1edff440ab2a827e9a642f486eaf0139ecd56d7b55c907d80fa9ac9c76259a978aa810eb915e62225b081ea1b39d2888af0
SSDEEP

768:jZKM11gG4ChfiPO0rfz0shcUypMC5/VKhZyg3iepFV2DIQqSsFY2s/qsyp:gMDgG4ChfiPOefgsOUqQwg

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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System applets = "C:\\Windows\\System\\applets.exe"	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Syssrc32 = "C:\\Windows\\Syssrc32.exe"	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fndfst32 = "C:\\Windows\\System\\fndfst32.exe"	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Explorer Shell = "C:\\Windows\\System\\Explorer.exe"	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe

Drops file in Windows directory 14 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System\Sysexp32.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File opened for modification	C:\Windows\System\mplayerw.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File opened for modification	C:\Windows\Syssrc32.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File created	C:\Windows\Help\intret.cnt	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File created	C:\Windows\Syssrc32.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File opened for modification	C:\Windows\System\fndfst32.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File created	C:\Windows\System\fndfst32.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File opened for modification	C:\Windows\Help\intret.cnt	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File created	C:\Windows\System\Sysexp32.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File created	C:\Windows\System\applets.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File created	C:\Windows\System\mplayerw.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File opened for modification	C:\Windows\System\applets.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File opened for modification	C:\Windows\System\Explorer.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
File created	C:\Windows\System\Explorer.exe	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4920	5056	WerFault.exe	78

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\Explore = "%SystemRoot%\\SysWow64\\NOTEPAD.EXE %1"	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\System\\Sysexp32.exe %1"	bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe

C:\Users\Admin\AppData\Local\Temp\bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe
"C:\Users\Admin\AppData\Local\Temp\bcaac8687a8cf3e19b3c0f85ecc82ac8bd6f528bc0e6c480281ad50e57fa07a9.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
PID:5056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 332
  2⤵
  - Program crash
  PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5056 -ip 5056
1⤵
PID:4740

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

Windows 7 deprecation

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