f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9

General

Target

f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
Size

101KB
MD5

a267bf9e58726a34a91c365b61e1424a
SHA1

081793b4c26d910e652d9ad45c6e54d0c878a2d0
SHA256

f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9
SHA512

17c1d9d8a9ce9753a5b35f8974baa8745e787039b8772374cfc445e592768dbc2417c3572d84e2697972a039c350859ebdd95a0baff291815f7644ec142e37af

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

winnxff.exe

pid process

4652 winnxff.exe

pid	process
4652	winnxff.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update 9754865 = "C:\\Windows\\39483579126810504\\winnxff.exe"	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update 9754865 = "C:\\Windows\\39483579126810504\\winnxff.exe"	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe

Drops file in Windows directory 3 IoCs

Processes:

f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe

description	ioc	process
File opened for modification	C:\Windows\39483579126810504\winnxff.exe	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
File opened for modification	C:\Windows\39483579126810504	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
File created	C:\Windows\39483579126810504\winnxff.exe	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe

Program crash 8 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
3748	2400	WerFault.exe	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
3680	4652	WerFault.exe	winnxff.exe
4564	2400	WerFault.exe	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
2772	4652	WerFault.exe	winnxff.exe
2444	2400	WerFault.exe	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
4644	4652	WerFault.exe	winnxff.exe
936	4652	WerFault.exe	winnxff.exe
3044	2400	WerFault.exe	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe

description	pid	process	target process
PID 2400 wrote to memory of 4652	2400	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe	winnxff.exe
PID 2400 wrote to memory of 4652	2400	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe	winnxff.exe
PID 2400 wrote to memory of 4652	2400	f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe	winnxff.exe

C:\Users\Admin\AppData\Local\Temp\f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe
"C:\Users\Admin\AppData\Local\Temp\f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2400

C:\Windows\39483579126810504\winnxff.exe
C:\Windows\39483579126810504\winnxff.exe
2⤵
- Executes dropped EXE
PID:4652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 500
3⤵
- Program crash
PID:3680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 612
3⤵
- Program crash
PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 736
3⤵
- Program crash
PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 772
3⤵
- Program crash
PID:936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 556
2⤵
- Program crash
PID:3748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 660
2⤵
- Program crash
PID:4564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 796
2⤵
- Program crash
PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 680
2⤵
- Program crash
PID:3044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2400 -ip 2400
1⤵
PID:220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4652 -ip 4652
1⤵
PID:2244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4652 -ip 4652
1⤵
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2400 -ip 2400
1⤵
PID:4364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4652 -ip 4652
1⤵
PID:4544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 2400 -ip 2400
1⤵
PID:4152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 4652 -ip 4652
1⤵
PID:1164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2400 -ip 2400
1⤵
PID:3952

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

Replay Monitor

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Downloads

C:\Windows\39483579126810504\winnxff.exe

Filesize
101KB

MD5
a267bf9e58726a34a91c365b61e1424a

SHA1
081793b4c26d910e652d9ad45c6e54d0c878a2d0

SHA256
f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9

SHA512
17c1d9d8a9ce9753a5b35f8974baa8745e787039b8772374cfc445e592768dbc2417c3572d84e2697972a039c350859ebdd95a0baff291815f7644ec142e37af

Download Submit
C:\Windows\39483579126810504\winnxff.exe

Filesize
101KB

MD5
a267bf9e58726a34a91c365b61e1424a

SHA1
081793b4c26d910e652d9ad45c6e54d0c878a2d0

SHA256
f9c1bd33a50ec1dc30bba77e179d6342b2172f1162fc4cae3726d6e4563337d9

SHA512
17c1d9d8a9ce9753a5b35f8974baa8745e787039b8772374cfc445e592768dbc2417c3572d84e2697972a039c350859ebdd95a0baff291815f7644ec142e37af

Download Submit
memory/2400-130-0x0000000000722000-0x0000000000726000-memory.dmp

Filesize
16KB

Download
memory/2400-132-0x0000000000400000-0x00000000004AE000-memory.dmp

Filesize
696KB

Download
memory/2400-131-0x0000000000722000-0x0000000000726000-memory.dmp

Filesize
16KB

Download
memory/4652-133-0x0000000000000000-mapping.dmp

Download
memory/4652-136-0x0000000000803000-0x0000000000807000-memory.dmp

Filesize
16KB

Download
memory/4652-138-0x0000000000400000-0x00000000004AE000-memory.dmp

Filesize
696KB

Download
memory/4652-137-0x0000000000803000-0x0000000000807000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads