snakekeylogger | ae33318e53652eda0917a4f856ecf0041d8f57b73bf82bc6322921ea16654a04

General

Target

IMG_40317.exe
Size

1.4MB
MD5

9da79ca571b3427fbd82003b94ee08d2
SHA1

3e00a65e6f87ffe3d210e41fe0fef1017be59d9b
SHA256

ae33318e53652eda0917a4f856ecf0041d8f57b73bf82bc6322921ea16654a04
SHA512

033edcb711c8c38de1f0acdbca86d1e624602c4c052773a06bb5145ec80f77a42407b072d2c36454878b6f6e1a026d0ce5cca0e5f7e2688ee2e5c9d3918fb945

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
server255.web-hosting.com
Port:
587
Username:
ambit@janryone.xyz
Password:
XtR&NkW]q(J0

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

1196 bsys.exe
4864 InstallUtil.exe

pid	process
1196	bsys.exe
4864	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_40317.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	IMG_40317.exe

Drops startup file 1 IoCs

Processes:

IMG_40317.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bsys.lnk IMG_40317.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_40317.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\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

30 checkip.dyndns.org
32 freegeoip.app
33 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

bsys.exe

description pid process target process

PID 1196 set thread context of 4864 1196 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

1076 4864 WerFault.exe InstallUtil.exe

flow	ioc
30	checkip.dyndns.org
32	freegeoip.app
33	freegeoip.app

description	pid	process	target process
PID 1196 set thread context of 4864	1196	bsys.exe	InstallUtil.exe

pid	pid_target	process	target process
1076	4864	WerFault.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

IMG_40317.exebsys.exeInstallUtil.exe

pid	process
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
716	IMG_40317.exe
1196	bsys.exe
1196	bsys.exe
4864	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IMG_40317.exebsys.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 716 IMG_40317.exe
Token: SeDebugPrivilege 1196 bsys.exe
Token: SeDebugPrivilege 4864 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	716	IMG_40317.exe
Token: SeDebugPrivilege	1196	bsys.exe
Token: SeDebugPrivilege	4864	InstallUtil.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

IMG_40317.exebsys.exe

description	pid	process	target process
PID 716 wrote to memory of 1196	716	IMG_40317.exe	bsys.exe
PID 716 wrote to memory of 1196	716	IMG_40317.exe	bsys.exe
PID 716 wrote to memory of 1196	716	IMG_40317.exe	bsys.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe
PID 1196 wrote to memory of 4864	1196	bsys.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_40317.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_40317.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:716

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:1196

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:4864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 1788
4⤵
- Program crash
PID:1076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4864 -ip 4864
1⤵
PID:1316

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
9da79ca571b3427fbd82003b94ee08d2

SHA1
3e00a65e6f87ffe3d210e41fe0fef1017be59d9b

SHA256
ae33318e53652eda0917a4f856ecf0041d8f57b73bf82bc6322921ea16654a04

SHA512
033edcb711c8c38de1f0acdbca86d1e624602c4c052773a06bb5145ec80f77a42407b072d2c36454878b6f6e1a026d0ce5cca0e5f7e2688ee2e5c9d3918fb945

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

MD5
9da79ca571b3427fbd82003b94ee08d2

SHA1
3e00a65e6f87ffe3d210e41fe0fef1017be59d9b

SHA256
ae33318e53652eda0917a4f856ecf0041d8f57b73bf82bc6322921ea16654a04

SHA512
033edcb711c8c38de1f0acdbca86d1e624602c4c052773a06bb5145ec80f77a42407b072d2c36454878b6f6e1a026d0ce5cca0e5f7e2688ee2e5c9d3918fb945

Download Submit
memory/716-130-0x00000000006B0000-0x0000000000820000-memory.dmp

Filesize
1.4MB

Download
memory/716-131-0x00000000051D0000-0x000000000526C000-memory.dmp

Filesize
624KB

Download
memory/716-132-0x0000000007B90000-0x0000000007C22000-memory.dmp

Filesize
584KB

Download
memory/1196-133-0x0000000000000000-mapping.dmp

Download
memory/4864-136-0x0000000000000000-mapping.dmp

Download
memory/4864-137-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/4864-140-0x0000000005880000-0x0000000005E24000-memory.dmp

Filesize
5.6MB

Download
memory/4864-141-0x0000000006600000-0x00000000067C2000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads