snakekeylogger | 715a3d7675672d8474b83bedfee8e594b96856fa34a915debf9ae57c171ee366

General

Target

715a3d7675672d8474b83bedfee8e594b96856fa34a915debf9ae57c171ee366.docm
Size

15KB
MD5

9ce250e7dace223506f0d22240530bb6
SHA1

24a87a2730fb3913369ae8f67ea459afc57976bd
SHA256

715a3d7675672d8474b83bedfee8e594b96856fa34a915debf9ae57c171ee366
SHA512

3185e16fa152f586e91abf29e77087f3966a40e795487c17de1f8320b3c35ff06f99a57762203fb33a18b67e15f11ef451bd1fe30882f319177880bf562a39d3
SSDEEP

384:/imteTM+3an0i13Lp3kO/Xv+iT3eZazFkG:/LJ7v1393p/XGiT3N

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/1472-43-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1472-40-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1472-38-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1472-45-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1472-44-0x0000000000400000-0x0000000000426000-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
2620	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
3032	nawBVBlSWH7iu7T.scr

Loads dropped DLL 1 IoCs

pid	Process
2296	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\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
6	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 1472	3032	nawBVBlSWH7iu7T.scr	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	nawBVBlSWH7iu7T.scr
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WINWORD.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
3004	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
2296	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3032	nawBVBlSWH7iu7T.scr
3032	nawBVBlSWH7iu7T.scr
1472	vbc.exe
2620	powershell.exe
1472	vbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	nawBVBlSWH7iu7T.scr
Token: SeDebugPrivilege	1472	vbc.exe
Token: SeDebugPrivilege	2620	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2296	WINWORD.EXE
2296	WINWORD.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 3032	2296	WINWORD.EXE	31
PID 2296 wrote to memory of 3032	2296	WINWORD.EXE	31
PID 2296 wrote to memory of 3032	2296	WINWORD.EXE	31
PID 2296 wrote to memory of 3032	2296	WINWORD.EXE	31
PID 2296 wrote to memory of 2784	2296	WINWORD.EXE	33
PID 2296 wrote to memory of 2784	2296	WINWORD.EXE	33
PID 2296 wrote to memory of 2784	2296	WINWORD.EXE	33
PID 2296 wrote to memory of 2784	2296	WINWORD.EXE	33
PID 3032 wrote to memory of 2620	3032	nawBVBlSWH7iu7T.scr	34
PID 3032 wrote to memory of 2620	3032	nawBVBlSWH7iu7T.scr	34
PID 3032 wrote to memory of 2620	3032	nawBVBlSWH7iu7T.scr	34
PID 3032 wrote to memory of 2620	3032	nawBVBlSWH7iu7T.scr	34
PID 3032 wrote to memory of 3004	3032	nawBVBlSWH7iu7T.scr	36
PID 3032 wrote to memory of 3004	3032	nawBVBlSWH7iu7T.scr	36
PID 3032 wrote to memory of 3004	3032	nawBVBlSWH7iu7T.scr	36
PID 3032 wrote to memory of 3004	3032	nawBVBlSWH7iu7T.scr	36
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38
PID 3032 wrote to memory of 1472	3032	nawBVBlSWH7iu7T.scr	38

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\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\715a3d7675672d8474b83bedfee8e594b96856fa34a915debf9ae57c171ee366.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:2296
- C:\ProgramData\nawBVBlSWH7iu7T.scr
  C:\ProgramData\nawBVBlSWH7iu7T.scr
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YlGewDdvEIy.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2620
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YlGewDdvEIy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1C09.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3004
- - 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:1472
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2784

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\tmp1C09.tmp

Filesize
1KB

MD5
14fd6f625eb73c48d53878556536009a

SHA1
c1bcbf0e6f03cf4d5571183a57e306314234209b

SHA256
e3c536e6d7c563e5a432cb6f74c8fb4f29ea1fdbd75a56cf08b317a66b3fd0c8

SHA512
c9ce9950c7d6c1e4f6e9a6ec6aeb77a780a2de3f78501a9a2f8bdd2215528c5a6c4a2637094e0bb866a19d965e3328a8448e197981f6ccaa49aea164fad13e32

Download Submit
\ProgramData\nawBVBlSWH7iu7T.scr

Filesize
576KB

MD5
d75592cbb9d3ba728f0b27ad6218152c

SHA1
549930cb2a9dc576c4f831793d8e29957d070551

SHA256
c6a4e0fa597caf6381635be6ba6211ccb2c5d7161402e46128124c26750b945c

SHA512
346fb36f74267d137173cb1e8838742fe1e595d29e7200f93943949c4331c0eb142f07cfc0a74874a697621603e4c62e78396865ae5da9c5f0f7c3bbda431e25

Download Submit
memory/1472-37-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1472-45-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1472-44-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1472-38-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1472-40-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1472-42-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1472-43-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1472-34-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2296-0-0x000000002F4B1000-0x000000002F4B2000-memory.dmp

Filesize
4KB

Download
memory/2296-4-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/2296-23-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/2296-6-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/2296-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2296-5-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/2296-2-0x000000007117D000-0x0000000071188000-memory.dmp

Filesize
44KB

Download
memory/2296-22-0x000000007117D000-0x0000000071188000-memory.dmp

Filesize
44KB

Download
memory/3032-16-0x000000006A240000-0x000000006A92E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-14-0x0000000000AD0000-0x0000000000B62000-memory.dmp

Filesize
584KB

Download
memory/3032-13-0x000000006A24E000-0x000000006A24F000-memory.dmp

Filesize
4KB

Download
memory/3032-25-0x000000006A240000-0x000000006A92E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-26-0x0000000004E40000-0x0000000004EAC000-memory.dmp

Filesize
432KB

Download
memory/3032-24-0x000000006A24E000-0x000000006A24F000-memory.dmp

Filesize
4KB

Download
memory/3032-17-0x0000000000510000-0x0000000000528000-memory.dmp

Filesize
96KB

Download
memory/3032-46-0x000000006A240000-0x000000006A92E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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