snakekeylogger | 7c79eb411ed860b232dbb4b7a63f08987b1caca1103e668185571a0c45d32de6

General

Target

CVConstanzaMaranon..exe
Size

662KB
MD5

e47f2d9717d088dea7b10a92b1750d84
SHA1

e85ae1f39df03fff301835728ace331d84bdffba
SHA256

7c79eb411ed860b232dbb4b7a63f08987b1caca1103e668185571a0c45d32de6
SHA512

14cc4e298f60d159a11a9bf349e183334efddc3cf220c54f9c0bcb9d60e5745e0b1d24105072cf7c1ced80ce860d5131f1260767370d4803a4a3a97cac507b26
SSDEEP

12288:0qGih5k3RIDdoAxMNqJLctHD7fC6Mt0/mbzhjC5+:m+5oRIDa3tjPMtqB

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7925383692:AAHB0cxNGwsFVZxBJrUTW-AZ__B_KxqE6hk/sendMessage?chat_id=2146433139

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2980-10-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2980-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger
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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CVConstanzaMaranon..exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CVConstanzaMaranon..exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CVConstanzaMaranon..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
2	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 2980	3004	CVConstanzaMaranon..exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 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	CVConstanzaMaranon..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CVConstanzaMaranon..exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
3004	CVConstanzaMaranon..exe
2980	CVConstanzaMaranon..exe
2980	CVConstanzaMaranon..exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	CVConstanzaMaranon..exe
Token: SeDebugPrivilege	2980	CVConstanzaMaranon..exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29
PID 3004 wrote to memory of 2980	3004	CVConstanzaMaranon..exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CVConstanzaMaranon..exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CVConstanzaMaranon..exe

C:\Users\Admin\AppData\Local\Temp\CVConstanzaMaranon..exe
"C:\Users\Admin\AppData\Local\Temp\CVConstanzaMaranon..exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\CVConstanzaMaranon..exe
  "C:\Users\Admin\AppData\Local\Temp\CVConstanzaMaranon..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:2980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2980-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-20-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/2980-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2980-21-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/2980-18-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/3004-2-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/3004-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/3004-1-0x0000000001320000-0x00000000013CC000-memory.dmp

Filesize
688KB

Download
memory/3004-6-0x000000000A770000-0x000000000A7D8000-memory.dmp

Filesize
416KB

Download
memory/3004-5-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/3004-19-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/3004-4-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/3004-3-0x0000000000B20000-0x0000000000B3E000-memory.dmp

Filesize
120KB

Download

Analysis

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