snakekeylogger | 7cfa2679df6bf8e6bfbdecf66e8f94b4ead43ea1eff4db042cc3300e2acfec2f

General

Target

HESAP DETAYLARI.pdf.exe
Size

598KB
MD5

b040e5d5e8022359da5c465ad3e2dcf1
SHA1

f6f7f65784a00c22c478ef578c7b47c716997a60
SHA256

38e3fa1e0a5550df5117b64b4971d6d7ce187519d26e5d87abe7b8f949de3f10
SHA512

86d700f48a88153ce075688c671667be905f5f0343e8b7b95c56d8292fb7536e1c1cb36788650dfca174489ccd7ce3f5a2d5cdd67b3cb093f6d5bb69447a41cf
SSDEEP

12288:Ncir1S2IoOAc6/5rZGmy45nZZno/59/qVcVApPstz2ug/K7bNcKTwwxp6H2dOWqp:JnZ9oqcapEtz2Z/K7b+awwa2db0

Score

10^/10

snakekeylogger collection discovery execution keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2568-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2568-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2568-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2568-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2568-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2740	powershell.exe
344	powershell.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HESAP DETAYLARI.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HESAP DETAYLARI.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HESAP DETAYLARI.pdf.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 1016 set thread context of 2568	1016	HESAP DETAYLARI.pdf.exe	37

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	HESAP DETAYLARI.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HESAP DETAYLARI.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1016	HESAP DETAYLARI.pdf.exe
1016	HESAP DETAYLARI.pdf.exe
2568	HESAP DETAYLARI.pdf.exe
344	powershell.exe
2740	powershell.exe
2568	HESAP DETAYLARI.pdf.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1016	HESAP DETAYLARI.pdf.exe
Token: SeDebugPrivilege	2568	HESAP DETAYLARI.pdf.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	344	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 344	1016	HESAP DETAYLARI.pdf.exe	31
PID 1016 wrote to memory of 344	1016	HESAP DETAYLARI.pdf.exe	31
PID 1016 wrote to memory of 344	1016	HESAP DETAYLARI.pdf.exe	31
PID 1016 wrote to memory of 344	1016	HESAP DETAYLARI.pdf.exe	31
PID 1016 wrote to memory of 2740	1016	HESAP DETAYLARI.pdf.exe	33
PID 1016 wrote to memory of 2740	1016	HESAP DETAYLARI.pdf.exe	33
PID 1016 wrote to memory of 2740	1016	HESAP DETAYLARI.pdf.exe	33
PID 1016 wrote to memory of 2740	1016	HESAP DETAYLARI.pdf.exe	33
PID 1016 wrote to memory of 2884	1016	HESAP DETAYLARI.pdf.exe	35
PID 1016 wrote to memory of 2884	1016	HESAP DETAYLARI.pdf.exe	35
PID 1016 wrote to memory of 2884	1016	HESAP DETAYLARI.pdf.exe	35
PID 1016 wrote to memory of 2884	1016	HESAP DETAYLARI.pdf.exe	35
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37
PID 1016 wrote to memory of 2568	1016	HESAP DETAYLARI.pdf.exe	37

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HESAP DETAYLARI.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HESAP DETAYLARI.pdf.exe

C:\Users\Admin\AppData\Local\Temp\HESAP DETAYLARI.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\HESAP DETAYLARI.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\HESAP DETAYLARI.pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:344
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WiEGDhYdY.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WiEGDhYdY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBA4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\HESAP DETAYLARI.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\HESAP DETAYLARI.pdf.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:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBA4.tmp

Filesize
1KB

MD5
2e34556ca6521205493c8e8a88bda753

SHA1
83a1aced38f8be0b086fbeff32f3d5e7a7affae0

SHA256
0014467d234e5d9977775aa46910cf1cc433cb6f2c6c835a254dafa506292edc

SHA512
5e648577176a4623c64abf619b94cbec78a419063c113bfc8cde7a37898e26a680020dda9abd1f35dae39a867900a040f219073045ff99da6f1c4d8d533f1e10

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
25262830293d6577c99c4b5a783b6c98

SHA1
bc81f59641aaad725a9e3e2f5e4d40f2aeed1f10

SHA256
b2b583fce55279bff26c2dadc4864e7a195633d307f303fbf076ba2772d22baa

SHA512
f126bcaf847b1c56174b68097b85d9ff48e6fa34a6334a248b5d951a29e200e3b4ee1fac098383305e9e1797197df153f24e8bbc26361b669bb63635fd38dd15

Download Submit
memory/1016-4-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1016-31-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1016-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/1016-5-0x0000000000570000-0x0000000000582000-memory.dmp

Filesize
72KB

Download
memory/1016-6-0x0000000005C00000-0x0000000005C68000-memory.dmp

Filesize
416KB

Download
memory/1016-2-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1016-1-0x0000000000150000-0x00000000001EC000-memory.dmp

Filesize
624KB

Download
memory/1016-3-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2568-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2568-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2568-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2568-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2568-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2568-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2568-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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