snakekeylogger | 12d47f62ed1f5d60193a3a3099873286365c15dc6bf9df17aa250e1f7660c36c

General

Target

PaymentConfirmation..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/2312-45-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-46-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-48-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-42-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2312-40-0x0000000000400000-0x0000000000426000-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
1108	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2196	pSRrNpLv0bS37RA.exe

Loads dropped DLL 1 IoCs

pid	Process
2408	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 2196 set thread context of 2312	2196	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
840	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
2408	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2312	vbc.exe
1108	powershell.exe
2312	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	vbc.exe
Token: SeDebugPrivilege	1108	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2408	WINWORD.EXE
2408	WINWORD.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2196	2408	WINWORD.EXE	28
PID 2408 wrote to memory of 2196	2408	WINWORD.EXE	28
PID 2408 wrote to memory of 2196	2408	WINWORD.EXE	28
PID 2408 wrote to memory of 2196	2408	WINWORD.EXE	28
PID 2408 wrote to memory of 2352	2408	WINWORD.EXE	30
PID 2408 wrote to memory of 2352	2408	WINWORD.EXE	30
PID 2408 wrote to memory of 2352	2408	WINWORD.EXE	30
PID 2408 wrote to memory of 2352	2408	WINWORD.EXE	30
PID 2196 wrote to memory of 1108	2196	pSRrNpLv0bS37RA.exe	34
PID 2196 wrote to memory of 1108	2196	pSRrNpLv0bS37RA.exe	34
PID 2196 wrote to memory of 1108	2196	pSRrNpLv0bS37RA.exe	34
PID 2196 wrote to memory of 1108	2196	pSRrNpLv0bS37RA.exe	34
PID 2196 wrote to memory of 840	2196	pSRrNpLv0bS37RA.exe	36
PID 2196 wrote to memory of 840	2196	pSRrNpLv0bS37RA.exe	36
PID 2196 wrote to memory of 840	2196	pSRrNpLv0bS37RA.exe	36
PID 2196 wrote to memory of 840	2196	pSRrNpLv0bS37RA.exe	36
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	38
PID 2196 wrote to memory of 2312	2196	pSRrNpLv0bS37RA.exe	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\PaymentConfirmation..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:2408
- 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:2196
- - 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:1108
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Vzvbbx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD143.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:840
- - 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:2312
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2352

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\tmpD143.tmp

Filesize
1KB

MD5
dcaa05604cd6e868cd881f21b6bf262d

SHA1
11b28b065cb40ad68473341569210aa8ac646ebc

SHA256
311c9092739f4dd3b0e96d4aa6ebde9ad04e0691b27cda25472c3dd61d7d05aa

SHA512
89b9492851c4604f6364b4be7178020cb07b8d000647189345da7e62e49a629a686d9d0f80965403111e88ac7cd3b7c2d4a7f6c0a9bc8e823229c22d55461c01

Download Submit
\ProgramData\pSRrNpLv0bS37RA.exe

Filesize
3.6MB

MD5
6d63f97b52c80f9d4f04deb80e15a892

SHA1
62a6e30c24499511b8c44b7948f83af5ac17959e

SHA256
499cf5d857866301dfc24c03d532badc1e18c40c86e87ee56dfbb4b4d2ae4896

SHA512
8b7a76aaada8785560d90669911c2c526ec92b8c28ae12a347e7da76663cb0ccdba772a40e2ddf2e55014c0c216faabb3dd09243587e537e6da445e435bb7f2a

Download Submit
memory/2196-17-0x00000000003F0000-0x00000000004E6000-memory.dmp

Filesize
984KB

Download
memory/2196-49-0x000000006B1A0000-0x000000006B88E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-28-0x0000000005180000-0x00000000051EC000-memory.dmp

Filesize
432KB

Download
memory/2196-27-0x000000006B1A0000-0x000000006B88E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-26-0x000000006B1AE000-0x000000006B1AF000-memory.dmp

Filesize
4KB

Download
memory/2196-21-0x00000000003C0000-0x00000000003DE000-memory.dmp

Filesize
120KB

Download
memory/2196-19-0x000000006B1A0000-0x000000006B88E000-memory.dmp

Filesize
6.9MB

Download
memory/2196-16-0x000000006B1AE000-0x000000006B1AF000-memory.dmp

Filesize
4KB

Download
memory/2312-46-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2312-44-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2312-37-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2312-38-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2312-40-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2312-42-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2312-48-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2312-45-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2408-0-0x000000002FE41000-0x000000002FE42000-memory.dmp

Filesize
4KB

Download
memory/2408-2-0x000000007180D000-0x0000000071818000-memory.dmp

Filesize
44KB

Download
memory/2408-9-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2408-5-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2408-7-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2408-6-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/2408-8-0x000000007180D000-0x0000000071818000-memory.dmp

Filesize
44KB

Download
memory/2408-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads