snakekeylogger | 6ee1e5991a0d9c2fe23d62b4d13a6279cf121eb49c0675a23050fa5bceee9d37

General

Target

SB0G28XC.bat.exe
Size

330KB
MD5

68ec81a206ccfd9346ab5f01ad9099ce
SHA1

28939cfbfbd6f4ad27a0107d8af960a66c0a1f89
SHA256

6ee1e5991a0d9c2fe23d62b4d13a6279cf121eb49c0675a23050fa5bceee9d37
SHA512

624fc52f7fdfb4c2b89cc8f21e405dbfcfcaf64223bb95f4f76eb2d18f9c23f0787603956c2ef1489b32510cd9ed045398987c5bead71fcc34dcb9097ca51827
SSDEEP

6144:5cOazRkHn3DeQLJhpSS4xfFYjtLYE2Odtyqd72frQQD:5cOazmqQLJ2n6JYrOiqo/

Score

10^/10

snakekeylogger collection evasion keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: ftp
Host:
ftp://ftp.resultsurex.com/
Port:
21
Username:
[email protected]
Password:
#M(J4[B0=%g8

C2

https://api.telegram.org/bot6156533308:AAGhZIuuJLmTGWzMUHA3YxFXCaiT_llfToI/sendMessage?chat_id=5986156290

Signatures

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3908-8-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral2/memory/3908-12-0x0000000005070000-0x0000000005080000-memory.dmp	family_snakekeylogger

Disables Task Manager via registry modification
evasion
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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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.

Processes:

flow ioc

27 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

SB0G28XC.bat.exe

description pid process target process

PID 2304 set thread context of 3908 2304 SB0G28XC.bat.exe RegAsm.exe
Drops file in Windows directory 1 IoCs

Processes:

RegAsm.exe

description ioc process

File opened for modification C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

3908 RegAsm.exe
3908 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 3908 RegAsm.exe

flow	ioc
27	checkip.dyndns.org

description	pid	process	target process
PID 2304 set thread context of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe

description	ioc	process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	RegAsm.exe

pid	process
3908	RegAsm.exe
3908	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3908	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

SB0G28XC.bat.exe

description	pid	process	target process
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe
PID 2304 wrote to memory of 3908	2304	SB0G28XC.bat.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\SB0G28XC.bat.exe
"C:\Users\Admin\AppData\Local\Temp\SB0G28XC.bat.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2304

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
2⤵
- Accesses Microsoft Outlook profiles
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2304-10-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/2304-1-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/2304-2-0x0000000005290000-0x0000000005834000-memory.dmp

Filesize
5.6MB

Download
memory/2304-3-0x0000000004D80000-0x0000000004E12000-memory.dmp

Filesize
584KB

Download
memory/2304-4-0x0000000004E20000-0x0000000004E74000-memory.dmp

Filesize
336KB

Download
memory/2304-5-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

Filesize
64KB

Download
memory/2304-6-0x0000000004F10000-0x0000000004FAC000-memory.dmp

Filesize
624KB

Download
memory/2304-7-0x0000000004D60000-0x0000000004D6A000-memory.dmp

Filesize
40KB

Download
memory/2304-0-0x00000000002E0000-0x0000000000338000-memory.dmp

Filesize
352KB

Download
memory/3908-8-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3908-11-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3908-12-0x0000000005070000-0x0000000005080000-memory.dmp

Filesize
64KB

Download
memory/3908-13-0x0000000005F80000-0x0000000005FD0000-memory.dmp

Filesize
320KB

Download
memory/3908-14-0x00000000061A0000-0x0000000006362000-memory.dmp

Filesize
1.8MB

Download
memory/3908-15-0x0000000006110000-0x000000000611A000-memory.dmp

Filesize
40KB

Download
memory/3908-16-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3908-17-0x0000000005070000-0x0000000005080000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads