f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573

Analysis

max time kernel
124s
max time network
132s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 11:33

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General

Target

f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe
Size

175KB
MD5

4dad1ae06de3ffcb010f6c2e616b7b11
SHA1

71f516aa4ff5cb5e28bbc38e165901a3a92b5660
SHA256

f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573
SHA512

ac5cce71a565f5da0f614bdcd85e1d62ac9df71aa569b39fac3f376fb44a9f3d3f68db82a52ce06e9bdd0f8c114023b322a9c989dbf5ce99d866514c455cb87f
SSDEEP

3072:tdLVt3Qc4AW9Ue5SItWEpZsTc3NwrSb/Fd25tWPrVcw9TksCUf2X0lKbX68BeN+h:/v3QICScZScdjFdyW5tTZCUf2X0UxeNU

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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1120-55-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/1216-59-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/1120-61-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral1/memory/1692-66-0x0000000000400000-0x000000000046A000-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 8 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 1216	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	28
PID 1120 wrote to memory of 1216	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	28
PID 1120 wrote to memory of 1216	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	28
PID 1120 wrote to memory of 1216	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	28
PID 1120 wrote to memory of 1692	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	30
PID 1120 wrote to memory of 1692	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	30
PID 1120 wrote to memory of 1692	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	30
PID 1120 wrote to memory of 1692	1120	f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe	30

C:\Users\Admin\AppData\Local\Temp\f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe
"C:\Users\Admin\AppData\Local\Temp\f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Users\Admin\AppData\Local\Temp\f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe
  C:\Users\Admin\AppData\Local\Temp\f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  PID:1216
- C:\Users\Admin\AppData\Local\Temp\f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe
  C:\Users\Admin\AppData\Local\Temp\f3d430aeb052def46ddd27ee34f4ebbb8d6dd5a0199cf44af4821a620288f573.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:1692

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

C:\Users\Admin\AppData\Roaming\99D2.13A

Filesize
696B

MD5
dc9fc2e6debf5e67dae0fd7db8cce1e6

SHA1
53da2dcdf5c7a0dba71e6362f7f988ca9a722166

SHA256
d1e2b9f070d134290ccbc10a8f9b772bbbf4f20652bca4ae82638a48706f2ae7

SHA512
bc7335d14d356627cdbecc07379384321751489dffe342516cee7aaf5950dae2b256761a8c1d2f3dbe3d37e1263e928eb578e5f499fead9826111d89d747a688

Download Submit
memory/1120-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1120-55-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1120-56-0x000000000028E000-0x00000000002AA000-memory.dmp

Filesize
112KB

Download
memory/1120-61-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1120-62-0x000000000028E000-0x00000000002AA000-memory.dmp

Filesize
112KB

Download
memory/1216-59-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1216-60-0x000000000055E000-0x000000000057A000-memory.dmp

Filesize
112KB

Download
memory/1692-66-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/1692-67-0x000000000053E000-0x000000000055A000-memory.dmp

Filesize
112KB

Download