snakekeylogger | 99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43

General

Target

99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe
Size

3.6MB
MD5

34aad6fec4fa9e1387d268bb6f24f758
SHA1

959cca79e07e7a9589f05ac46d1bf9563d38de8b
SHA256

99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43
SHA512

85caddccbef84b9cbd6ad7cc100e3183a72ff99cb4485e7426d06f38aed9e163d5e3c072b5d33b6adf44070955e8a71d1843c5bdb3a1bd3fd136b56ecc42c9ea
SSDEEP

49152:TBwDUAR6Qzk7UHlj796h+16eUMTycWaX/Ngvv1VlHIPIV/CdQvJuJ44wPcbErkcT:TKQtQzv9XUMmczWvnlo0KSj5L1Ln9

Score

10^/10

snakekeylogger collection discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7692220058:AAEny12fSzuKXI7iNJaESECu5UR80nmwLAQ/sendMessage?chat_id=7342994424

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2776-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2776-26-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2776-24-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2776-20-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2776-18-0x0000000000400000-0x0000000000426000-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
1708	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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\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 2272 set thread context of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34

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	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.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

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
1148	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2776	vbc.exe
1708	powershell.exe
2776	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	vbc.exe
Token: SeDebugPrivilege	1708	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1708	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	30
PID 2272 wrote to memory of 1708	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	30
PID 2272 wrote to memory of 1708	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	30
PID 2272 wrote to memory of 1708	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	30
PID 2272 wrote to memory of 1148	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	32
PID 2272 wrote to memory of 1148	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	32
PID 2272 wrote to memory of 1148	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	32
PID 2272 wrote to memory of 1148	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	32
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34
PID 2272 wrote to memory of 2776	2272	99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Users\Admin\AppData\Local\Temp\99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe
"C:\Users\Admin\AppData\Local\Temp\99b74e18133910a21f58428c8fd9615a8dcb6a496bcda6acd20b5621d7951e43.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FVhIjYtGTAjNkN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1708
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVhIjYtGTAjNkN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A50.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1148
- 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:2776

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\tmp5A50.tmp

Filesize
1KB

MD5
96bd6dc424e1f698efec04f3b2936833

SHA1
49c568546083944eac9c1e99d9180781e51e5de5

SHA256
e7aa140d1b5aa7b7e721fb65a257c966a030725c3590e2e8bf6c3c9c49bed2d6

SHA512
04a410e0c658bfaa24c0469c7800d240de6464cd981848822151ede0cda65fec7669fd7145c512db2cf4b31869fd2e073c7215255c985e4b7675d96b64075556

Download Submit
memory/2272-27-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-1-0x0000000000B60000-0x0000000000C56000-memory.dmp

Filesize
984KB

Download
memory/2272-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-3-0x0000000000920000-0x000000000093E000-memory.dmp

Filesize
120KB

Download
memory/2272-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2272-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-6-0x0000000005D70000-0x0000000005DDC000-memory.dmp

Filesize
432KB

Download
memory/2272-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2776-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-26-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-24-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-22-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2776-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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