5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad

Analysis

max time kernel
226s
max time network
245s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 08:40

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General

Target

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
Size

3.8MB
MD5

ee887f2b5372f8b906ddd78c4555ab28
SHA1

714774a575d8594f29e86ac061bded3628aaceb5
SHA256

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad
SHA512

8e1373a49becaf1def732ff4febc003c32d2169e5432eeda7d7599b618a26d79f35b7215162501aab42983bd2e66cff1f28fe3be899243434dbd18da2670c6d4
SSDEEP

49152:Ye5KVFpiXThKVUKO8SsZ8wVFu+4p1ewogVdtXZ+iL35r8H:qFp8hSUKO8/Tu+SdJZjZ8H

Score

8^/10

bootkit persistence

Malware Config

Signatures

Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

pid process

3624 5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.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

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

description ioc process

File opened for modification \??\PhysicalDrive0 5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

Drops file in System32 directory 8 IoCs

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

description	ioc	process
File created	C:\Windows\SysWOW64\AngryMailer\Temp\nderjbxvi\icaucfo\spzuddythcknarutck\lwspo.txt	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
File created	C:\Windows\SysWOW64\AngryMailer\xeazbmare\lqhkwjhk\netyqrbd2022-11-25_15_44_19_963.txt	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
File created	C:\Windows\SysWOW64\AngryMailer\onpgflnalcctnljnru\pis\uouuymlaregabbi\jeiggworsonajvgu\tbtphocul\bwzlkkabtvxykafqr.ini	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
File created	C:\Windows\SysWOW64\AngryMailer_1.0.2.1\SkinH.dll	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
File created	C:\Windows\SysWOW64\AngryMailer_1.0.2.1\SkinH.she	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
File created	C:\Windows\SysWOW64\AngryMailer_1.0.2.1\AngryMailer.51.la.html	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
File created	C:\Windows\SysWOW64\AngryMailer\VersionNo\nderjbxvi\icaucfo\spzuddythcknarutck\lwspo2022-11-25_15_42_22_978.txt	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
File created	C:\Windows\SysWOW64\AngryMailer\qrqpmxujjl\o\aowuxwhmsn\bxcoksfzkvatx\knlyjyhfixjs2022-11-25_15_42_37_775.txt	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

pid process

3624 5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

description	pid	process
Token: SeShutdownPrivilege	3624	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
Token: SeBackupPrivilege	3624	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

pid process

3624 5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

pid process

3624 5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

pid	process
3624	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
3624	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
3624	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
3624	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
3624	5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe

C:\Users\Admin\AppData\Local\Temp\5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe
"C:\Users\Admin\AppData\Local\Temp\5cbc55701a7f6973ea3985d469c2d2d9de8f5642de947c2a1e5813b4fd0363ad.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:3624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\AngryMailer_1.0.2.1\SkinH.dll
Filesize
95KB

MD5
8c00426ffcb551ba07904d9a67843bb4

SHA1
0c1daffaf62497cfa121320b386024a1c18b9be9

SHA256
2c1186029848788fe6fb2ab7cc2a1b9263a872e477344a3483e13ab89604e16c

SHA512
c235ef09f2b96142e062b87df76906c224e7256baabdc0c68d89b52b8603e0d16e6c6c5f98f3fb1fadef5fa117d516ee5ca4e7ecb2a47ecf752db56bd28f732a

Download Submit
memory/3624-133-0x0000000010000000-0x0000000010054000-memory.dmp

Filesize
336KB

Download