snakekeylogger | f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b

General

Target

f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe
Size

956KB
MD5

646d6a8071101735cda455a8fa55b43f
SHA1

6bff90bad9c6e5c61b07fa19de0e40f6df0d9c85
SHA256

f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b
SHA512

3a4582685d5c4e715046f77dbeaa13b7c5998a8a891d8db27618869d0e694008e07b481d77c2cda9238257358b2c1dedae8e4273f96da9fea81627ce637a0bd1
SSDEEP

24576:Nu6J33O0c+JY5UZ+XC0kGso6FaHIj28u8WY:/u0c++OCvkGs9FaHI68EY

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7335410877:AAHBMeSn7K8p-NY6dklN-m5n2viykY0OFhs/sendMessage?chat_id=7747524028

Signatures

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

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral1/memory/2512-32-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2512-36-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2512-34-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\piceous.vbs	piceous.exe

Executes dropped EXE 1 IoCs

pid	Process
1216	piceous.exe

Loads dropped DLL 1 IoCs

pid	Process
1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
9	reallyfreegeoip.org
4	checkip.dyndns.org
8	reallyfreegeoip.org

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000016d21-13.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1216 set thread context of 2512	1216	piceous.exe	31

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	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	piceous.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2512	RegSvcs.exe
2512	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1216	piceous.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe
1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe
1216	piceous.exe
1216	piceous.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe
1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe
1216	piceous.exe
1216	piceous.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 1216	1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe	30
PID 1904 wrote to memory of 1216	1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe	30
PID 1904 wrote to memory of 1216	1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe	30
PID 1904 wrote to memory of 1216	1904	f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe	30
PID 1216 wrote to memory of 2512	1216	piceous.exe	31
PID 1216 wrote to memory of 2512	1216	piceous.exe	31
PID 1216 wrote to memory of 2512	1216	piceous.exe	31
PID 1216 wrote to memory of 2512	1216	piceous.exe	31
PID 1216 wrote to memory of 2512	1216	piceous.exe	31
PID 1216 wrote to memory of 2512	1216	piceous.exe	31
PID 1216 wrote to memory of 2512	1216	piceous.exe	31
PID 1216 wrote to memory of 2512	1216	piceous.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe
"C:\Users\Admin\AppData\Local\Temp\f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Users\Admin\AppData\Local\reenjoys\piceous.exe
  "C:\Users\Admin\AppData\Local\Temp\f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - 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:1216
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b.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:2512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\maneuverability

Filesize
28KB

MD5
a95e25262212f2c9552e0679e3c8530c

SHA1
aff15a4b9e2438730db687c59acf08d771a1d1e0

SHA256
15d86846310c7d6f781fad2c696c310c4ea867b0133eb036fe443ca8ea44308c

SHA512
ba1d09276cd424b783da54fda3a7077060fe54e9844222fa090eb94a63c5be60f5d610e05a9c1a4d9a73d9d32f1b8150737dd11526161f6930a1b6cae0192482

Download Submit
\Users\Admin\AppData\Local\reenjoys\piceous.exe

Filesize
956KB

MD5
646d6a8071101735cda455a8fa55b43f

SHA1
6bff90bad9c6e5c61b07fa19de0e40f6df0d9c85

SHA256
f3c498fb56e03eb5d37b1bacf4c360cf880a7b25f5b338d1fc2efb2336f3255b

SHA512
3a4582685d5c4e715046f77dbeaa13b7c5998a8a891d8db27618869d0e694008e07b481d77c2cda9238257358b2c1dedae8e4273f96da9fea81627ce637a0bd1

Download Submit
memory/1904-11-0x0000000000120000-0x0000000000124000-memory.dmp

Filesize
16KB

Download
memory/2512-32-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2512-36-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2512-34-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2512-37-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2512-38-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2512-39-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2512-40-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing