fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8

Analysis

max time kernel
157s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 14:42

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General

Target

fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe
Size

184KB
MD5

05104c6647d03d3c17d18a56df770d2a
SHA1

24024ea50d9d9bb8f7e1f6cf60fd8deaeb97d346
SHA256

fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8
SHA512

7d570ba528e2f8ca1f9900de7570d042bc92e317becdda9319e432df391d88e29ab75c2362f310d62b7725a090ff74910284bc3b48f6d390309de02522d1625c
SSDEEP

3072:xf3ZM5zwheDxS7txhF7BiOk+5cOWAuE/uONr3lsT6O8vaUO/NwbX850pMIWqojEW:lpM5zwQSJxhdBiOk+5cOv/uOR46O8v5Q

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4088-132-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/3224-136-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/4088-137-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/5028-140-0x0000000000400000-0x000000000046E000-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

description	pid	Process	procid_target
PID 4088 wrote to memory of 3224	4088	fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe	79
PID 4088 wrote to memory of 3224	4088	fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe	79
PID 4088 wrote to memory of 3224	4088	fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe	79
PID 4088 wrote to memory of 5028	4088	fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe	80
PID 4088 wrote to memory of 5028	4088	fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe	80
PID 4088 wrote to memory of 5028	4088	fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe	80

C:\Users\Admin\AppData\Local\Temp\fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe
"C:\Users\Admin\AppData\Local\Temp\fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Users\Admin\AppData\Local\Temp\fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe
  C:\Users\Admin\AppData\Local\Temp\fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  PID:3224
- C:\Users\Admin\AppData\Local\Temp\fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe
  C:\Users\Admin\AppData\Local\Temp\fa13aece929c176af33e201558a226c17f4960d7b50ffefa44dc9be024e1a4a8.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:5028

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/3224-136-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4088-132-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4088-133-0x0000000000667000-0x0000000000683000-memory.dmp

Filesize
112KB

Download
memory/4088-137-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4088-138-0x0000000000667000-0x0000000000683000-memory.dmp

Filesize
112KB

Download
memory/5028-140-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/5028-141-0x00000000006EA000-0x0000000000706000-memory.dmp

Filesize
112KB

Download