0db5b915b764a0e06b43121d88ac51254c0d4bc134fbb3ff2a41fe98b05bdf57

Analysis

max time kernel
151s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 14:28

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General

Target

1b6f58ab2f22aa91575b6a80a28dd335.exe
Size

49KB
MD5

1b6f58ab2f22aa91575b6a80a28dd335
SHA1

db0af8c15320740fdca6c1394c6bbd2cd9ecfefd
SHA256

0db5b915b764a0e06b43121d88ac51254c0d4bc134fbb3ff2a41fe98b05bdf57
SHA512

4190d18d859abef93fb2d10cc1454f5ffb796e22da737530547054d841053345e37b5ebdc3a6dc7561c7e46c96cd1af1f879c2129074ddc0a9f38132591c206d
SSDEEP

768:KSwiDGn3Dor4Rh2rMGyqreETOXr79kKOIYe5MD9nFyUBGiSAhRH8:KacUr4Rh2AGyqreEKTru9nFyjiS4a

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	1b6f58ab2f22aa91575b6a80a28dd335.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	1b6f58ab2f22aa91575b6a80a28dd335.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\braviax.exe	1b6f58ab2f22aa91575b6a80a28dd335.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2688	2088	1b6f58ab2f22aa91575b6a80a28dd335.exe	3
PID 2088 wrote to memory of 2688	2088	1b6f58ab2f22aa91575b6a80a28dd335.exe	3
PID 2088 wrote to memory of 2688	2088	1b6f58ab2f22aa91575b6a80a28dd335.exe	3
PID 2088 wrote to memory of 2688	2088	1b6f58ab2f22aa91575b6a80a28dd335.exe	3

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat" "
1⤵
PID:2688

C:\Users\Admin\AppData\Local\Temp\1b6f58ab2f22aa91575b6a80a28dd335.exe
"C:\Users\Admin\AppData\Local\Temp\1b6f58ab2f22aa91575b6a80a28dd335.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\delself.bat

Filesize
202B

MD5
763541e90b60f67d282f18b087a39834

SHA1
b44399589c6fc2c095b4f83a8f1c290752da9e69

SHA256
2ddce256b7c19736ed5206d341bd111bec5064595743ddbf8ec26a81fbd55d4c

SHA512
ada19ac6fc51dba088607c2071d68a49b73fc8bdf924f94611ac4dad8c791aace27bc8995b1b4653940a5058ce180850157056d96994832e4d51af2ad643cbfd

Download Submit
memory/2088-0-0x0000000000220000-0x000000000022C000-memory.dmp

Filesize
48KB

Download
memory/2088-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads