snakekeylogger | 3d7654867efbc44661a3a5889d8f91fc402917587e58f9fc7a5c8c636b32b1a6

General

Target

z53CV.exe
Size

949KB
MD5

15029aa00dc1beac4707a80ea501048e
SHA1

a17ebbb34e19533cd16daec646b0b8d3ed294c8d
SHA256

3d7654867efbc44661a3a5889d8f91fc402917587e58f9fc7a5c8c636b32b1a6
SHA512

49e9e8a27edb741ae5060813e26da1c48d75820346edfca2affaf79560e87be7f2b0d07d8dbaa13a88523bbfe251c20366d51a76d31d944cedd70738cd469ef0
SSDEEP

24576:bAHnh+eWsN3skA4RV1Hom2KXFmIa5zCFBZex1JF5:2h+ZkldoPK1Xa5zCXcx1N

Score

10^/10

snakekeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7920003586:AAHBMriHaNCFiZ4OQ4NdecriTbdf93HSOJo/sendMessage?chat_id=7174574119

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/3752-12-0x0000000000520000-0x0000000000546000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\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
11	reallyfreegeoip.org
12	reallyfreegeoip.org
5	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5076 set thread context of 3752	5076	z53CV.exe	82

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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	z53CV.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3752	RegSvcs.exe
3752	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
5076	z53CV.exe
5076	z53CV.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3752	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5076	z53CV.exe
5076	z53CV.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
5076	z53CV.exe
5076	z53CV.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 3752	5076	z53CV.exe	82
PID 5076 wrote to memory of 3752	5076	z53CV.exe	82
PID 5076 wrote to memory of 3752	5076	z53CV.exe	82
PID 5076 wrote to memory of 3752	5076	z53CV.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\z53CV.exe
"C:\Users\Admin\AppData\Local\Temp\z53CV.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:5076
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\z53CV.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:3752

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

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Downloads

memory/3752-12-0x0000000000520000-0x0000000000546000-memory.dmp

Filesize
152KB

Download
memory/3752-13-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

Filesize
4KB

Download
memory/3752-14-0x0000000005060000-0x0000000005604000-memory.dmp

Filesize
5.6MB

Download
memory/3752-15-0x0000000004B90000-0x0000000004C2C000-memory.dmp

Filesize
624KB

Download
memory/3752-16-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3752-17-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

Filesize
4KB

Download
memory/3752-18-0x0000000074E70000-0x0000000075620000-memory.dmp

Filesize
7.7MB

Download
memory/3752-19-0x0000000005E90000-0x0000000005EE0000-memory.dmp

Filesize
320KB

Download
memory/3752-20-0x00000000060B0000-0x0000000006272000-memory.dmp

Filesize
1.8MB

Download
memory/3752-21-0x0000000005F80000-0x0000000006012000-memory.dmp

Filesize
584KB

Download
memory/3752-22-0x0000000005F40000-0x0000000005F4A000-memory.dmp

Filesize
40KB

Download
memory/5076-11-0x0000000001630000-0x0000000001A30000-memory.dmp

Filesize
4.0MB

Download

Analysis

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