7a068a3fb23cb34bd23f67a19d23de9f4a0c94f68aca121f13fb1d8268f5236d

General

Target

U89.exe
Size

212KB
MD5

f556271e1338dfc224cbebf6fe8f8eae
SHA1

054f755a4037ba3bc4c17a5f4c681a1204f35e0d
SHA256

a70560275b6f6e9586a30f473b01f2584717df66a338204c696b55aa9994ca59
SHA512

5f6c89c1544110d4039b4d814618f18ffd341c1c057ea9837006ab858187164e9d8f2910cdd133696a20bdbe2a2fb351b7c0e8c4d02693cd436ab7a88e7915d0
SSDEEP

3072:obhW6ZNK8kxbvM6qVYqQyYOmaq63Ckl+GPDJNn6lsJ9t57OGskwuZ53lWQMEdFFH:o8c18vM64LYOmaq6TIS6lyX7Tp/1Zv

Score

7^/10

bootkit discovery persistence upx

Malware Config

Signatures

Unexpected DNS network traffic destination 11 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	210.144.5.163
Destination IP	141.161.200.201
Destination IP	203.234.132.1
Destination IP	203.139.161.37
Destination IP	57.68.16.13
Destination IP	198.231.24.101
Destination IP	129.82.100.64
Destination IP	66.54.140.10
Destination IP	129.22.4.1
Destination IP	209.75.26.6
Destination IP	128.192.1.193

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	U89.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2104-0-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-3-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-4-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-14-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-26-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-27-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-34-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-35-0x0000000000400000-0x0000000000465000-memory.dmp	upx
behavioral1/memory/2104-42-0x0000000000400000-0x0000000000465000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	U89.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	U89.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	U89.exe

Suspicious use of SetWindowsHookEx 24 IoCs

pid	Process
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe
2104	U89.exe

C:\Users\Admin\AppData\Local\Temp\U89.exe
"C:\Users\Admin\AppData\Local\Temp\U89.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- Suspicious use of SetWindowsHookEx
PID:2104

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

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\PUTTY.RND

Filesize
600B

MD5
ca2061fac79d5c50e7f7475e8922d0e0

SHA1
6a0d0627e0fb1478e4c0bf05e31a39715b00b8f2

SHA256
3a61bd5b54064b53e985c644df8f2dfc5e27b2299164bf45bc56540c0b2582ac

SHA512
8e30f669c53f15a5190fafa6a326fe8ee871713ef1b51154fc74501960fe36b03f4a2d15ae1351b786ccdbc6b6ef98b6b374310121c387dc671a38b3af8722ca

Download Submit
memory/2104-0-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-3-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-4-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-14-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-26-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-27-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-34-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-35-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/2104-42-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads