Analysis
- max time kernel
48s - max time network
50s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system - submitted
29/01/2023, 09:40
Behavioral task
behavioral1
Sample
b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe
Resource
win7-20220812-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe
Resource
win10v2004-20221111-en
2 signatures
150 seconds
General
- Target b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe
- Size 68KB
- Sample230129-lnpgxabc4s
- SHA256 b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e
- MD5 78b0428d6e39162c8451848c71f11491
- SHA1 3c5ef398c9f60be0f9fdaf2e311f225a3f679796
- SHA512 5d6324eb2add430553137297e2088b22b3d16c477e3a2d92e96761ce308667511323eecf51f3017fd96ff70230cdea585b4762505a7ea800ea84b67b41d1e2e0
- SSDEEP 1536:iRxzwtY8fQkwPx98yHcKwdDqIOofffP7kwTa/QnSWPoivV/3:rfQbi8IOof3DF+APd/3
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Deletes itself 1 IoCs
pid Process 1400 cmd.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1728 wrote to memory of 1400 1728 b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe 28 PID 1728 wrote to memory of 1400 1728 b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe 28 PID 1728 wrote to memory of 1400 1728 b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe 28 PID 1728 wrote to memory of 1400 1728 b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe"C:\Users\Admin\AppData\Local\Temp\b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\ytk.bat" "C:\Users\Admin\AppData\Local\Temp\b5153dfc7c845aeb2297ac376cf08bc21b9953b5287e6a70843f5e461bc9802e.exe" "2⤵
- Deletes itself
PID:1400
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\ytk.bat
- Size 71B
- SHA256 66a04ff993916bce61351e4c3b94ea079c806efb1723c7cd79bd32aaf6847e0b
- MD5 e6b031b9b7d40fa332ebc6f38b2f9f64
- SHA1 d6dbffcfcc6a26188fd8d2e5b6257af4821fb48f
- SHA512 7d17655334fcda4c3326110d340fd91cd23ee284dec99c3a8bbc8408342fda5f51e27aaba75fba4cccd513c342c22f07ad2cf6e2326ba575e3cc0eba4ea91948
- MD5 SHA1 SHA512