fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c

Analysis

max time kernel
130s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 12:37

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General

Target

fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
Size

178KB
MD5

cd71a536fa269bac132a0e6ec49b9cb9
SHA1

999211ae5740a91de436843928f46ea4304a30b0
SHA256

fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c
SHA512

875be4e10dc3194fa3f6cbc4c7b111e9e3745419397a3a1d2149a538c6e3fb7d20e53b0bee4358621dfdd99654cc53f7604cc216154aef87d21ece487bf747e4
SSDEEP

3072:ST+PzecO+bW/phOhzSPkMYWdH9kXID+PIqm2v4XNlMUhR44Y6j5W3UFKoL7KwkCD:SP+MhctPWpsAqp4jMUhRTY69WkjeCj/

Score

10^/10

persistence spyware stealer upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\conhost.exe"	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2224-133-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/5032-136-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/2224-139-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3396-142-0x0000000000400000-0x0000000000490000-memory.dmp	upx

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe

description	pid	process	target process
PID 2224 wrote to memory of 5032	2224	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
PID 2224 wrote to memory of 5032	2224	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
PID 2224 wrote to memory of 5032	2224	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
PID 2224 wrote to memory of 3396	2224	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
PID 2224 wrote to memory of 3396	2224	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
PID 2224 wrote to memory of 3396	2224	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe	fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe

C:\Users\Admin\AppData\Local\Temp\fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
"C:\Users\Admin\AppData\Local\Temp\fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of WriteProcessMemory
PID:2224

C:\Users\Admin\AppData\Local\Temp\fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
C:\Users\Admin\AppData\Local\Temp\fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe startC:\Users\Admin\AppData\Roaming\Microsoft\csrss.exe%C:\Users\Admin\AppData\Roaming\Microsoft
2⤵
PID:5032

C:\Users\Admin\AppData\Local\Temp\fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe
C:\Users\Admin\AppData\Local\Temp\fba191484a3f0e69d753fe3fb49607f50e55a29924626a8578820a1d3fc94c2c.exe startC:\Windows\system32\lvvm.exe%C:\Windows\system32
2⤵
PID:3396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2224-133-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2224-134-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/2224-139-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2224-140-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/3396-141-0x0000000000000000-mapping.dmp

Download
memory/3396-142-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3396-143-0x0000000000652000-0x000000000066C000-memory.dmp

Filesize
104KB

Download
memory/5032-135-0x0000000000000000-mapping.dmp

Download
memory/5032-136-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/5032-137-0x00000000005D2000-0x00000000005EC000-memory.dmp

Filesize
104KB

Download
memory/5032-138-0x00000000005D2000-0x00000000005EC000-memory.dmp

Filesize
104KB

Download