snakekeylogger | b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20

General

Target

IMG_25579.exe
Size

1.4MB
MD5

5ab98f94682ec463f48cada8b9811055
SHA1

550fc889de33b94a63dfaf1138bcc54be489f767
SHA256

b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20
SHA512

e3e4ed794ebf4bf3e246eab58699df4b822fdea5cab238b1a838c09b2d596a5228db934e631a843010df618e42524a32e7d4b750d536c9f20c827b78d71b87c6

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
server255.web-hosting.com
Port:
587
Username:
next@janryone.xyz
Password:
Gm3v,2bov]gn

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger
Executes dropped EXE 2 IoCs

Processes:

bsys.exeInstallUtil.exe

pid process

3656 bsys.exe
1572 InstallUtil.exe

pid	process
3656	bsys.exe
1572	InstallUtil.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

IMG_25579.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	IMG_25579.exe

Drops startup file 1 IoCs

Processes:

IMG_25579.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bsys.lnk IMG_25579.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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
T1081

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bsys.lnk	IMG_25579.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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.

Processes:

flow ioc

20 checkip.dyndns.org
23 freegeoip.app
24 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

bsys.exe

description pid process target process

PID 3656 set thread context of 1572 3656 bsys.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3840 1572 WerFault.exe InstallUtil.exe

flow	ioc
20	checkip.dyndns.org
23	freegeoip.app
24	freegeoip.app

description	pid	process	target process
PID 3656 set thread context of 1572	3656	bsys.exe	InstallUtil.exe

pid	pid_target	process	target process
3840	1572	WerFault.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

IMG_25579.exebsys.exeInstallUtil.exe

pid	process
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
4588	IMG_25579.exe
3656	bsys.exe
3656	bsys.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IMG_25579.exebsys.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 4588 IMG_25579.exe
Token: SeDebugPrivilege 3656 bsys.exe
Token: SeDebugPrivilege 1572 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4588	IMG_25579.exe
Token: SeDebugPrivilege	3656	bsys.exe
Token: SeDebugPrivilege	1572	InstallUtil.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

IMG_25579.exebsys.exe

description	pid	process	target process
PID 4588 wrote to memory of 3656	4588	IMG_25579.exe	bsys.exe
PID 4588 wrote to memory of 3656	4588	IMG_25579.exe	bsys.exe
PID 4588 wrote to memory of 3656	4588	IMG_25579.exe	bsys.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe
PID 3656 wrote to memory of 1572	3656	bsys.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_25579.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_25579.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4588

C:\Users\Admin\bsys.exe
"C:\Users\Admin\bsys.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3656

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1572 -s 1800
4⤵
- Program crash
PID:3840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1572 -ip 1572
1⤵
PID:4872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\bsys.exe
Filesize
1.4MB

MD5
5ab98f94682ec463f48cada8b9811055

SHA1
550fc889de33b94a63dfaf1138bcc54be489f767

SHA256
b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20

SHA512
e3e4ed794ebf4bf3e246eab58699df4b822fdea5cab238b1a838c09b2d596a5228db934e631a843010df618e42524a32e7d4b750d536c9f20c827b78d71b87c6

Download Submit
C:\Users\Admin\bsys.exe
Filesize
1.4MB

MD5
5ab98f94682ec463f48cada8b9811055

SHA1
550fc889de33b94a63dfaf1138bcc54be489f767

SHA256
b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20

SHA512
e3e4ed794ebf4bf3e246eab58699df4b822fdea5cab238b1a838c09b2d596a5228db934e631a843010df618e42524a32e7d4b750d536c9f20c827b78d71b87c6

Download Submit
memory/1572-136-0x0000000000000000-mapping.dmp

Download
memory/1572-137-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1572-140-0x0000000005EE0000-0x0000000006484000-memory.dmp

Filesize
5.6MB

Download
memory/1572-141-0x0000000006C80000-0x0000000006E42000-memory.dmp

Filesize
1.8MB

Download
memory/3656-133-0x0000000000000000-mapping.dmp

Download
memory/4588-130-0x00000000002A0000-0x0000000000410000-memory.dmp

Filesize
1.4MB

Download
memory/4588-131-0x0000000004D70000-0x0000000004E0C000-memory.dmp

Filesize
624KB

Download
memory/4588-132-0x0000000007760000-0x00000000077F2000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads