snakekeylogger | 801f1738b260abd0cc0cb625b991279b4d65ce927122bac2c24450642726d4b4

General

Target

New Required Data for Descaling System.exe
Size

675KB
MD5

1b8d77ea9fe74c35a330ecd098c622e5
SHA1

354b24042d43e892f6088dedf54081903b247479
SHA256

e9db3a8e0762d2178a6a7acb37f8d11e448ef6d58462e0f12eb1f06ff36299ae
SHA512

8bdf42c801823c356712c939aef07e6c7fe135d3b5e0bc866d98ca5ef9446f07bc24a41ad3b8339516da1d14810a8d7196d8a9cc6985c051cbec005afb22285f
SSDEEP

12288:srTY00jwPzkZmXlVVOeoPY+0p9XhA/lZtWKi2XhxP6J/Fzknp0:srTdHQm1/OeoPYpp9RAdCKiYh56dFgm

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7817497413:AAH6fX2oZGM3XzbbIU69SVEGO80t6mDhjdU/sendMessage?chat_id=1695799026

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/3048-11-0x0000000000400000-0x0000000000426000-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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Required Data for Descaling System.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Required Data for Descaling System.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Required Data for Descaling System.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
17	checkip.dyndns.org
24	reallyfreegeoip.org
25	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3580 set thread context of 3048	3580	New Required Data for Descaling System.exe	92

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	New Required Data for Descaling System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Required Data for Descaling System.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3580	New Required Data for Descaling System.exe
3580	New Required Data for Descaling System.exe
3048	New Required Data for Descaling System.exe
3048	New Required Data for Descaling System.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3580	New Required Data for Descaling System.exe
Token: SeDebugPrivilege	3048	New Required Data for Descaling System.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3580 wrote to memory of 2780	3580	New Required Data for Descaling System.exe	91
PID 3580 wrote to memory of 2780	3580	New Required Data for Descaling System.exe	91
PID 3580 wrote to memory of 2780	3580	New Required Data for Descaling System.exe	91
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92
PID 3580 wrote to memory of 3048	3580	New Required Data for Descaling System.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Required Data for Descaling System.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Required Data for Descaling System.exe

C:\Users\Admin\AppData\Local\Temp\New Required Data for Descaling System.exe
"C:\Users\Admin\AppData\Local\Temp\New Required Data for Descaling System.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Users\Admin\AppData\Local\Temp\New Required Data for Descaling System.exe
  "C:\Users\Admin\AppData\Local\Temp\New Required Data for Descaling System.exe"
  2⤵
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\New Required Data for Descaling System.exe
  "C:\Users\Admin\AppData\Local\Temp\New Required Data for Descaling System.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:3048

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New Required Data for Descaling System.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3048-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3048-19-0x0000000007080000-0x0000000007242000-memory.dmp

Filesize
1.8MB

Download
memory/3048-18-0x0000000006E60000-0x0000000006EB0000-memory.dmp

Filesize
320KB

Download
memory/3048-17-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/3048-16-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/3048-15-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/3580-5-0x0000000004B50000-0x0000000004B5A000-memory.dmp

Filesize
40KB

Download
memory/3580-8-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/3580-9-0x00000000023C0000-0x000000000242C000-memory.dmp

Filesize
432KB

Download
memory/3580-10-0x000000000A8A0000-0x000000000A93C000-memory.dmp

Filesize
624KB

Download
memory/3580-7-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/3580-6-0x0000000004D30000-0x0000000004D4E000-memory.dmp

Filesize
120KB

Download
memory/3580-14-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/3580-4-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/3580-0-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/3580-3-0x0000000004B60000-0x0000000004BF2000-memory.dmp

Filesize
584KB

Download
memory/3580-2-0x0000000005070000-0x0000000005614000-memory.dmp

Filesize
5.6MB

Download
memory/3580-1-0x00000000000B0000-0x000000000015E000-memory.dmp

Filesize
696KB

Download

Analysis

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