snakekeylogger | 499cf5d857866301dfc24c03d532badc1e18c40c86e87ee56dfbb4b4d2ae4896

General

Target

6d63f97b52c80f9d4f04deb80e15a892.exe
Size

3.6MB
MD5

6d63f97b52c80f9d4f04deb80e15a892
SHA1

62a6e30c24499511b8c44b7948f83af5ac17959e
SHA256

499cf5d857866301dfc24c03d532badc1e18c40c86e87ee56dfbb4b4d2ae4896
SHA512

8b7a76aaada8785560d90669911c2c526ec92b8c28ae12a347e7da76663cb0ccdba772a40e2ddf2e55014c0c216faabb3dd09243587e537e6da445e435bb7f2a
SSDEEP

49152:NQbvhYL9wpkzrk7UHlt796h+16eUMTycWaX/Ngvv1VlHIPIV/CdQvJuJ44wPcbER:NF9wpkzrv/XUMmczWvnlo0KSj5L1Ln9

Score

10^/10

snakekeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.dap.vn
Port:
587
Username:
[email protected]
Password:
KhAnh110886
Email To:
[email protected]

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2808-22-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2808-21-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2808-18-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2808-16-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2808-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2592	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1040 set thread context of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d63f97b52c80f9d4f04deb80e15a892.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2864	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2808	vbc.exe
2592	powershell.exe
2808	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	vbc.exe
Token: SeDebugPrivilege	2592	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 2592	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	29
PID 1040 wrote to memory of 2592	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	29
PID 1040 wrote to memory of 2592	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	29
PID 1040 wrote to memory of 2592	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	29
PID 1040 wrote to memory of 2864	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	30
PID 1040 wrote to memory of 2864	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	30
PID 1040 wrote to memory of 2864	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	30
PID 1040 wrote to memory of 2864	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	30
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33
PID 1040 wrote to memory of 2808	1040	6d63f97b52c80f9d4f04deb80e15a892.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Users\Admin\AppData\Local\Temp\6d63f97b52c80f9d4f04deb80e15a892.exe
"C:\Users\Admin\AppData\Local\Temp\6d63f97b52c80f9d4f04deb80e15a892.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Vzvbbx.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2592
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Vzvbbx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE87.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2864
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAE87.tmp

Filesize
1KB

MD5
37eca4e7aa7a6710d575b3a43ae0701b

SHA1
af0bc8345a3cf03ba0e0d047c4d198f074f687c7

SHA256
af13a87c305c1dd0f2b1d1c7822652d391338eb2caec0d22cb84536132945651

SHA512
ac9f8017a70ec908f37ad6a04b9f534964ec59fb43ea37e9d7622547ee8ac2681e4de4056af657f2be48976237ce920cd2244b9c6a3309027e8feb48cb7eb41f

Download Submit
memory/1040-24-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/1040-1-0x0000000000A30000-0x0000000000B26000-memory.dmp

Filesize
984KB

Download
memory/1040-2-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/1040-3-0x0000000000380000-0x000000000039E000-memory.dmp

Filesize
120KB

Download
memory/1040-4-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/1040-5-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/1040-6-0x0000000005C90000-0x0000000005CFC000-memory.dmp

Filesize
432KB

Download
memory/1040-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/2808-22-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2808-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2808-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2808-20-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2808-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2808-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2808-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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