snakekeylogger | 12d47f62ed1f5d60193a3a3099873286365c15dc6bf9df17aa250e1f7660c36c

General

Target

Payment Confirmation..docm
Size

15KB
MD5

5b539c1cf933b4b4158552ce25f708e1
SHA1

8b322500fa186ca8f6e2fe0494214ad2b527d8d0
SHA256

12d47f62ed1f5d60193a3a3099873286365c15dc6bf9df17aa250e1f7660c36c
SHA512

66296c5eaec5ab37c920780d0906082e808cde8a99c4cf1802c2d8013b722c324cf345e7af9fe8f971b100ae0d4326c3717eebe80cda1fe8715b6369af5c3f0a
SSDEEP

384:/imtLGAcgqN+v6+iAn0i13LHHOXv+iT3eZaakbM:/LL9cgqa3rv13jOXGiT3i

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/2980-34-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-40-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-39-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-36-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-41-0x0000000000400000-0x0000000000426000-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
1232	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2724	pSRrNpLv0bS37RA.exe

Loads dropped DLL 1 IoCs

pid	Process
2824	WINWORD.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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
6	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2980	2724	pSRrNpLv0bS37RA.exe	38

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

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 5 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	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pSRrNpLv0bS37RA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Office loads VBA resources, possible macro or embedded object present

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
2828	schtasks.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2824	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2980	vbc.exe
1232	powershell.exe
2980	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	vbc.exe
Token: SeDebugPrivilege	1232	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2824	WINWORD.EXE
2824	WINWORD.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2724	2824	WINWORD.EXE	30
PID 2824 wrote to memory of 2724	2824	WINWORD.EXE	30
PID 2824 wrote to memory of 2724	2824	WINWORD.EXE	30
PID 2824 wrote to memory of 2724	2824	WINWORD.EXE	30
PID 2824 wrote to memory of 2356	2824	WINWORD.EXE	32
PID 2824 wrote to memory of 2356	2824	WINWORD.EXE	32
PID 2824 wrote to memory of 2356	2824	WINWORD.EXE	32
PID 2824 wrote to memory of 2356	2824	WINWORD.EXE	32
PID 2724 wrote to memory of 1232	2724	pSRrNpLv0bS37RA.exe	34
PID 2724 wrote to memory of 1232	2724	pSRrNpLv0bS37RA.exe	34
PID 2724 wrote to memory of 1232	2724	pSRrNpLv0bS37RA.exe	34
PID 2724 wrote to memory of 1232	2724	pSRrNpLv0bS37RA.exe	34
PID 2724 wrote to memory of 2828	2724	pSRrNpLv0bS37RA.exe	36
PID 2724 wrote to memory of 2828	2724	pSRrNpLv0bS37RA.exe	36
PID 2724 wrote to memory of 2828	2724	pSRrNpLv0bS37RA.exe	36
PID 2724 wrote to memory of 2828	2724	pSRrNpLv0bS37RA.exe	36
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38
PID 2724 wrote to memory of 2980	2724	pSRrNpLv0bS37RA.exe	38

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation..docm"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2824
- C:\ProgramData\pSRrNpLv0bS37RA.exe
  C:\ProgramData\pSRrNpLv0bS37RA.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2724
- - 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"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1232
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Vzvbbx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD893.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2828
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2980
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2356

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\tmpD893.tmp

Filesize
1KB

MD5
b67ac09396b29553d15de33044c046d5

SHA1
c401403301b7f51c77d4a4b44188eb78bf8b5bac

SHA256
0b44115043f5c9ea7869b656111edbefa91a977255cf073ee757047bc77b2ccd

SHA512
5cbf5c3090890d897d33a8537966f23c429867551a4b00923345b796d2fbb36e059e90314c1e53989a032c7a17860b70211a0d4570af7dd329451b20f5073949

Download Submit
\ProgramData\pSRrNpLv0bS37RA.exe

Filesize
3.6MB

MD5
6d63f97b52c80f9d4f04deb80e15a892

SHA1
62a6e30c24499511b8c44b7948f83af5ac17959e

SHA256
499cf5d857866301dfc24c03d532badc1e18c40c86e87ee56dfbb4b4d2ae4896

SHA512
8b7a76aaada8785560d90669911c2c526ec92b8c28ae12a347e7da76663cb0ccdba772a40e2ddf2e55014c0c216faabb3dd09243587e537e6da445e435bb7f2a

Download Submit
memory/2724-16-0x0000000000F80000-0x0000000001076000-memory.dmp

Filesize
984KB

Download
memory/2724-42-0x000000006A8A0000-0x000000006AF8E000-memory.dmp

Filesize
6.9MB

Download
memory/2724-22-0x00000000050D0000-0x000000000513C000-memory.dmp

Filesize
432KB

Download
memory/2724-21-0x000000006A8A0000-0x000000006AF8E000-memory.dmp

Filesize
6.9MB

Download
memory/2724-20-0x000000006A8AE000-0x000000006A8AF000-memory.dmp

Filesize
4KB

Download
memory/2724-19-0x0000000000830000-0x000000000084E000-memory.dmp

Filesize
120KB

Download
memory/2724-18-0x000000006A8A0000-0x000000006AF8E000-memory.dmp

Filesize
6.9MB

Download
memory/2724-15-0x000000006A8AE000-0x000000006A8AF000-memory.dmp

Filesize
4KB

Download
memory/2824-7-0x00000000710ED000-0x00000000710F8000-memory.dmp

Filesize
44KB

Download
memory/2824-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2824-0-0x000000002FB41000-0x000000002FB42000-memory.dmp

Filesize
4KB

Download
memory/2824-5-0x00000000003D0000-0x00000000004D0000-memory.dmp

Filesize
1024KB

Download
memory/2824-6-0x00000000003D0000-0x00000000004D0000-memory.dmp

Filesize
1024KB

Download
memory/2824-4-0x00000000003D0000-0x00000000004D0000-memory.dmp

Filesize
1024KB

Download
memory/2824-2-0x00000000710ED000-0x00000000710F8000-memory.dmp

Filesize
44KB

Download
memory/2824-14-0x00000000003D0000-0x00000000004D0000-memory.dmp

Filesize
1024KB

Download
memory/2980-34-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-39-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-38-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-36-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-41-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-32-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-40-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads