344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae

Analysis

max time kernel
31s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 09:52

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General

Target

344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe
Size

50KB
MD5

10c5270139f1ada60e96b8b3ad2c3ca0
SHA1

c457e0dde3ce6ffa2e65c04545f013401035167a
SHA256

344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae
SHA512

d9a92d23301b7d05a58efb8b086306983008bdb9a12abb87b3ce11d08bd58fdd89752176dcd37941e2bc29580cbc396bffe2343144fe87c00e687c9a410c99e9
SSDEEP

768:BjtCpMIpNTMZGGkEaNxCXTJctA+T/0bXM0v4LZRRFlbF6reSEv8ZTaMRbykgJDXZ:BjUdGkEaHATcA+T/yfWjvv8ZwPxZ

Score

8^/10

discovery persistence upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1348-55-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1348-56-0x00000000003E0000-0x00000000003ED000-memory.dmp	upx
behavioral1/memory/1348-58-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1348-59-0x0000000000400000-0x0000000000421000-memory.dmp	upx

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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae = "c:\\windows\\344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe -m"	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe
File opened for modification	\??\c:\windows\344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe

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

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1348	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe
1348	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1348	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe
1348	344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe

C:\Users\Admin\AppData\Local\Temp\344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe
"C:\Users\Admin\AppData\Local\Temp\344c9854b639e63cb3faa6e92878f381ea43ba4517cc095732629851617e1bae.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1348

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1348-54-0x0000000074F41000-0x0000000074F43000-memory.dmp

Filesize
8KB

Download
memory/1348-55-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1348-56-0x00000000003E0000-0x00000000003ED000-memory.dmp

Filesize
52KB

Download
memory/1348-57-0x00000000003E0000-0x00000000003ED000-memory.dmp

Filesize
52KB

Download
memory/1348-58-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1348-59-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1348-60-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download