d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891

General

Target

d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe
Size

837KB
MD5

45ba505205cc7d1d9e331ce88d5b27dd
SHA1

e53d1804b55c6f14112947bbfde2d8893cfd38ce
SHA256

d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891
SHA512

171fc53c3f3beaf880dad9f285aa5a8e94ce4ef60f14a266194fbc3e178cf785d0f7e17c1550fa5a637ddca49a703a9d5246ad80c283753b6a210a38b7f6f86f
SSDEEP

24576:1HzKsfETSDBqKrYX59HhlmeAJdE9oIwXaClqD:5zKsMxl5jgerobbA

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3020	isecurity.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run	isecurity.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Internet Security = "C:\\ProgramData\\isecurity.exe"	isecurity.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\G:	isecurity.exe
File opened (read-only)	\??\N:	isecurity.exe
File opened (read-only)	\??\U:	isecurity.exe
File opened (read-only)	\??\Q:	isecurity.exe
File opened (read-only)	\??\F:	isecurity.exe
File opened (read-only)	\??\H:	isecurity.exe
File opened (read-only)	\??\I:	isecurity.exe
File opened (read-only)	\??\K:	isecurity.exe
File opened (read-only)	\??\T:	isecurity.exe
File opened (read-only)	\??\J:	isecurity.exe
File opened (read-only)	\??\M:	isecurity.exe
File opened (read-only)	\??\O:	isecurity.exe
File opened (read-only)	\??\S:	isecurity.exe
File opened (read-only)	\??\V:	isecurity.exe
File opened (read-only)	\??\W:	isecurity.exe
File opened (read-only)	\??\X:	isecurity.exe
File opened (read-only)	\??\Y:	isecurity.exe
File opened (read-only)	\??\E:	isecurity.exe
File opened (read-only)	\??\L:	isecurity.exe
File opened (read-only)	\??\P:	isecurity.exe
File opened (read-only)	\??\R:	isecurity.exe
File opened (read-only)	\??\Z:	isecurity.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	isecurity.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
3456	3020	WerFault.exe	83
364	3020	WerFault.exe	83
2184	3020	WerFault.exe	83
3208	3020	WerFault.exe	83
3812	3020	WerFault.exe	83
4284	3020	WerFault.exe	83
3580	3020	WerFault.exe	83
4412	3020	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1680	d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe
1680	d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1680	d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3020	isecurity.exe
3020	isecurity.exe
3020	isecurity.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3020	isecurity.exe
3020	isecurity.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 3020	1680	d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe	83
PID 1680 wrote to memory of 3020	1680	d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe	83
PID 1680 wrote to memory of 3020	1680	d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe	83

C:\Users\Admin\AppData\Local\Temp\d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe
"C:\Users\Admin\AppData\Local\Temp\d73f035c914e2b26fe5a902bcb2f167416496a2a3af88f92cac4060763c45891.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1680
- C:\ProgramData\isecurity.exe
  C:\ProgramData\isecurity.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3020
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 880
    3⤵
    - Program crash
    PID:3456
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1180
    3⤵
    - Program crash
    PID:364
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1200
    3⤵
    - Program crash
    PID:2184
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1232
    3⤵
    - Program crash
    PID:3208
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1240
    3⤵
    - Program crash
    PID:3812
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1284
    3⤵
    - Program crash
    PID:4284
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1284
    3⤵
    - Program crash
    PID:3580
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 1284
    3⤵
    - Program crash
    PID:4412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3020 -ip 3020
1⤵
PID:2420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3020 -ip 3020
1⤵
PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 3020 -ip 3020
1⤵
PID:4388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3020 -ip 3020
1⤵
PID:1452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3020 -ip 3020
1⤵
PID:1708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3020 -ip 3020
1⤵
PID:4372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3020 -ip 3020
1⤵
PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3020 -ip 3020
1⤵
PID:4992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3020 -ip 3020
1⤵
PID:380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\isecurity.exe

Filesize
828KB

MD5
6f8a8589dfdca9a93c83771eef0025d0

SHA1
a06fb37488361f8d70303390d4567018c60623fb

SHA256
12ba3a50481a7a383a920e07eaf69f7348d304c51beb8617c1e6d1f3382a0bcc

SHA512
0c1d8e19052a03828d09354ed7bacf6b9dfd2cc7bc073cf18b2090096a0807791d31d7b790a667fc61d544de4032c340f91fd2f8a712c1b2b29663e9a1e0257b

Download Submit
C:\ProgramData\isecurity.exe

Filesize
828KB

MD5
6f8a8589dfdca9a93c83771eef0025d0

SHA1
a06fb37488361f8d70303390d4567018c60623fb

SHA256
12ba3a50481a7a383a920e07eaf69f7348d304c51beb8617c1e6d1f3382a0bcc

SHA512
0c1d8e19052a03828d09354ed7bacf6b9dfd2cc7bc073cf18b2090096a0807791d31d7b790a667fc61d544de4032c340f91fd2f8a712c1b2b29663e9a1e0257b

Download Submit
memory/1680-132-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/1680-133-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/3020-137-0x0000000000400000-0x0000000000A34000-memory.dmp

Filesize
6.2MB

Download
memory/3020-138-0x0000000000400000-0x0000000000A34000-memory.dmp

Filesize
6.2MB

Download
memory/3020-140-0x0000000000400000-0x0000000000A34000-memory.dmp

Filesize
6.2MB

Download
memory/3020-141-0x0000000000400000-0x0000000000A34000-memory.dmp

Filesize
6.2MB

Download

Analysis

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