snakekeylogger | e363e0167179a654868a1baf5ee3d94b858208a070c370e44476e823560d8a7d

General

Target

Hesap.exe
Size

1.2MB
MD5

3eb8af973b39893de7c6f4fc5357eadf
SHA1

b7cf1b022558fa58bb393ef0a527138dc20241a8
SHA256

e363e0167179a654868a1baf5ee3d94b858208a070c370e44476e823560d8a7d
SHA512

39c155cf04b16363691f5ae4dc529d2a1425190af39b6c8764db165b11e67f062546867eff12f75803b30aeb34a9dda5d6958504056213475d60cc02318c0829
SSDEEP

24576:25EmXFtKaL4/oFe5T9yyXYfP1ijXdaCYYhzi6BTjP5Dy1cQsDRJOw:2PVt/LZeJbInQRaCY9avR27mJ

Score

10^/10

snakekeylogger collection discovery evasion keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7807072238:AAGtzAOTofEY8lBHcrZusyYa_emOxp-S_-s/sendMessage?chat_id=7361435574

Signatures

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

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral1/memory/2508-3-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2508-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2508-5-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	REG.exe

Disables Task Manager via registry modification
evasion

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	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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 2368 set thread context of 2508	2368	Hesap.exe	30

System Location Discovery: System Language Discovery 1 TTPs 3 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.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REG.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2852	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2508	RegSvcs.exe
2508	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2368	Hesap.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2368	Hesap.exe
2368	Hesap.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2368	Hesap.exe
2368	Hesap.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2368 wrote to memory of 2508	2368	Hesap.exe	30
PID 2508 wrote to memory of 2852	2508	RegSvcs.exe	32
PID 2508 wrote to memory of 2852	2508	RegSvcs.exe	32
PID 2508 wrote to memory of 2852	2508	RegSvcs.exe	32
PID 2508 wrote to memory of 2852	2508	RegSvcs.exe	32

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	RegSvcs.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	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Hesap.exe
"C:\Users\Admin\AppData\Local\Temp\Hesap.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\Hesap.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2508
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
    3⤵
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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

memory/2368-2-0x0000000000910000-0x0000000000D10000-memory.dmp

Filesize
4.0MB

Download
memory/2508-3-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2508-8-0x0000000073BAE000-0x0000000073BAF000-memory.dmp

Filesize
4KB

Download
memory/2508-9-0x0000000073BA0000-0x000000007428E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-10-0x0000000073BAE000-0x0000000073BAF000-memory.dmp

Filesize
4KB

Download
memory/2508-11-0x0000000073BA0000-0x000000007428E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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