blackmoon | b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222

General

Target

b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe
Size

45KB
MD5

848f235a39462120b498648a516426d9
SHA1

5f81ada2243741961ed1ee995ec8d39173c852f0
SHA256

b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222
SHA512

5e4f47842e19bca52e6dd092bf40a467b8817fc857a809d9bb2df1179f5df9626fb0551d29069a1b77ff1cd64ceb143dde1ae0438c3ff7b43e2221bb6c4156d1
SSDEEP

768:SI11SSlgEVG0UnyxWlnB+WHR6jiekphMf1PZFLJ4JGcTzMbhFHZyV8o1i3yG:YSleyeQWHxzuf1RFLqJGcTobhF5yV8o8

Score

10^/10

blackmoon banker persistence trojan

Malware Config

Signatures

Blackmoon, KrBanker
Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.
trojan banker blackmoon

Detect Blackmoon payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1772-55-0x0000000000400000-0x0000000000437000-memory.dmp	family_blackmoon
behavioral1/memory/952-64-0x0000000000400000-0x0000000000437000-memory.dmp	family_blackmoon
behavioral1/memory/1772-65-0x0000000000400000-0x0000000000437000-memory.dmp	family_blackmoon
behavioral1/memory/952-66-0x0000000000400000-0x0000000000437000-memory.dmp	family_blackmoon

Drops file in Drivers directory 2 IoCs

Processes:

syetom.exe

description	ioc	process
File opened for modification	C:\Windows\System32\drivers\etc\hosts.ics	syetom.exe
File created	C:\Windows\System32\drivers\etc\hosts.ics	syetom.exe

Executes dropped EXE 1 IoCs

Processes:

syetom.exe

pid process

952 syetom.exe

pid	process
952	syetom.exe

Loads dropped DLL 2 IoCs

Processes:

b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe

pid	process
1772	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe
1772	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\software\Wow6432Node\microsoft\windows\CurrentVersion\Run	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\syetom = "C:\\Program Files (x86)\\Nril\\syetom.exe"	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe

Drops file in Program Files directory 2 IoCs

Processes:

b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe

description	ioc	process
File created	C:\Program Files (x86)\Nril\syetom.exe	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe
File opened for modification	C:\Program Files (x86)\Nril\syetom.exe	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe

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

System Information Discovery
T1082

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

syetom.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	syetom.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	syetom.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe

description	pid	process	target process
PID 1772 wrote to memory of 952	1772	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe	syetom.exe
PID 1772 wrote to memory of 952	1772	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe	syetom.exe
PID 1772 wrote to memory of 952	1772	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe	syetom.exe
PID 1772 wrote to memory of 952	1772	b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe	syetom.exe

C:\Users\Admin\AppData\Local\Temp\b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe
"C:\Users\Admin\AppData\Local\Temp\b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1772

C:\Program Files (x86)\Nril\syetom.exe
"C:\Program Files (x86)\Nril\syetom.exe"
2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Modifies system certificate store
PID:952

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Nril\syetom.exe
Filesize
45KB

MD5
848f235a39462120b498648a516426d9

SHA1
5f81ada2243741961ed1ee995ec8d39173c852f0

SHA256
b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222

SHA512
5e4f47842e19bca52e6dd092bf40a467b8817fc857a809d9bb2df1179f5df9626fb0551d29069a1b77ff1cd64ceb143dde1ae0438c3ff7b43e2221bb6c4156d1

Download Submit
\Program Files (x86)\Nril\syetom.exe
Filesize
45KB

MD5
848f235a39462120b498648a516426d9

SHA1
5f81ada2243741961ed1ee995ec8d39173c852f0

SHA256
b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222

SHA512
5e4f47842e19bca52e6dd092bf40a467b8817fc857a809d9bb2df1179f5df9626fb0551d29069a1b77ff1cd64ceb143dde1ae0438c3ff7b43e2221bb6c4156d1

Download Submit
\Program Files (x86)\Nril\syetom.exe
Filesize
45KB

MD5
848f235a39462120b498648a516426d9

SHA1
5f81ada2243741961ed1ee995ec8d39173c852f0

SHA256
b8d258f2bb3939c6f23c7e0675c0b3d80373cccc0a14410b392e364fb39cd222

SHA512
5e4f47842e19bca52e6dd092bf40a467b8817fc857a809d9bb2df1179f5df9626fb0551d29069a1b77ff1cd64ceb143dde1ae0438c3ff7b43e2221bb6c4156d1

Download Submit
memory/952-59-0x0000000000000000-mapping.dmp

Download
memory/952-64-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/952-66-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1772-54-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1772-55-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1772-56-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/1772-63-0x0000000000230000-0x0000000000267000-memory.dmp

Filesize
220KB

Download
memory/1772-65-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads