f0c46967b991bef4b0d4d5a32db125ec51c8442ad72f5641f401725480d8b316

General

Target

13d735a9a2e5288112a97b283ff81f5d.exe
Size

823KB
MD5

13d735a9a2e5288112a97b283ff81f5d
SHA1

4a6c7d79c239584945f64e7004ebff35ea5e1ae4
SHA256

f0c46967b991bef4b0d4d5a32db125ec51c8442ad72f5641f401725480d8b316
SHA512

3b4b9febf566a123860245e97561d2020083fd0ed3557c991250f065180c33a78cbac1e6a581b186e8c592846d26871d3ef31f0cfbefebb5f5ab8a0e985d49d8
SSDEEP

24576:9VTMu+r0ovhZsqQv5XabyGO+8h6ey0OsFZjoKJGB:9V4K+T7Qv5qu/F/y09Zc

Score

6^/10

bootkit persistence

Malware Config

Signatures

Enumerates connected drives 3 TTPs 21 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)	\??\W:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\X:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\O:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\R:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\T:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\Q:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\V:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\E:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\H:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\P:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\S:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\Y:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\Z:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\J:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\L:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\M:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\N:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\U:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\G:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\I:	13d735a9a2e5288112a97b283ff81f5d.exe
File opened (read-only)	\??\K:	13d735a9a2e5288112a97b283ff81f5d.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

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	13d735a9a2e5288112a97b283ff81f5d.exe

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

System Information Discovery
T1082

Program crash 11 IoCs

pid	pid_target	Process	procid_target
2004	4556	WerFault.exe	89
2912	4556	WerFault.exe	89
2188	4556	WerFault.exe	89
3984	4556	WerFault.exe	89
3828	4556	WerFault.exe	89
1352	4556	WerFault.exe	89
2556	4556	WerFault.exe	89
1340	4556	WerFault.exe	89
4228	4556	WerFault.exe	89
2632	4556	WerFault.exe	89
1668	4556	WerFault.exe	89

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4556	13d735a9a2e5288112a97b283ff81f5d.exe
4556	13d735a9a2e5288112a97b283ff81f5d.exe
4556	13d735a9a2e5288112a97b283ff81f5d.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4556	13d735a9a2e5288112a97b283ff81f5d.exe
4556	13d735a9a2e5288112a97b283ff81f5d.exe
4556	13d735a9a2e5288112a97b283ff81f5d.exe

C:\Users\Admin\AppData\Local\Temp\13d735a9a2e5288112a97b283ff81f5d.exe
"C:\Users\Admin\AppData\Local\Temp\13d735a9a2e5288112a97b283ff81f5d.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 708
  2⤵
  - Program crash
  PID:2004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 744
  2⤵
  - Program crash
  PID:2912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1212
  2⤵
  - Program crash
  PID:2188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1260
  2⤵
  - Program crash
  PID:3984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1380
  2⤵
  - Program crash
  PID:3828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1268
  2⤵
  - Program crash
  PID:1352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1380
  2⤵
  - Program crash
  PID:2556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1268
  2⤵
  - Program crash
  PID:1340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1428
  2⤵
  - Program crash
  PID:4228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1960
  2⤵
  - Program crash
  PID:2632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 1264
  2⤵
  - Program crash
  PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4556 -ip 4556
1⤵
PID:2576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4556 -ip 4556
1⤵
PID:4980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4556 -ip 4556
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4556 -ip 4556
1⤵
PID:2632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4556 -ip 4556
1⤵
PID:348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4556 -ip 4556
1⤵
PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4556 -ip 4556
1⤵
PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4556 -ip 4556
1⤵
PID:1800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4556 -ip 4556
1⤵
PID:2600

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3604
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:5012

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
PID:4944

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
PID:1800

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2556
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:2776

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:4248
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:2484

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3640

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:920
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:2720

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:4244
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:3360

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:2308

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2924
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  PID:2776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4556 -ip 4556
1⤵
PID:1756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4556 -ip 4556
1⤵
PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2484-22-0x0000000002850000-0x0000000002851000-memory.dmp

Filesize
4KB

Download
memory/2776-39-0x0000000003080000-0x0000000003081000-memory.dmp

Filesize
4KB

Download
memory/3360-33-0x0000000003FE0000-0x0000000003FE1000-memory.dmp

Filesize
4KB

Download
memory/4556-59-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-49-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

Filesize
4KB

Download
memory/4556-5-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-75-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-4-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-26-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-2-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-37-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-1-0x0000000000B90000-0x0000000000B91000-memory.dmp

Filesize
4KB

Download
memory/4556-41-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-42-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-6-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

Filesize
4KB

Download
memory/4556-50-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-57-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-58-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-0-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-60-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-65-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-66-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-67-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-70-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-71-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/4556-72-0x0000000000400000-0x0000000000A3B000-memory.dmp

Filesize
6.2MB

Download
memory/5012-12-0x0000000002960000-0x0000000002961000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads