snakekeylogger | c99b050645ebbc138018a9dcb4c3029bc1a9aa9376e7541c1011e815942948e1

Resubmissions

01-02-2023 17:02

230201-vj6p3aah39 10

01-02-2023 17:00

230201-vjf5eacg4s 10

01-02-2023 16:57

230201-vgbrxacg2y 10

Analysis

max time kernel
56s
max time network
154s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01-02-2023 16:57

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General

Target

e1cf59372694c7d46d84d0139b40d41b.exe
Size

874KB
MD5

e1cf59372694c7d46d84d0139b40d41b
SHA1

d98fe7072196e71d5cb8388a7f6d62344ab382d9
SHA256

cd8be35dfd9e75a60f5f1aa9b9504823b887533f220617e65244eb9d8a0f8acf
SHA512

d95e2feb5062ab08168b62f0bd491d393aa02994b27aa3830fdc3c7de3f25460e03ea1e87837935e634634c68797689a637e0dea4560e700c1cd974d7f9cfac9
SSDEEP

12288:GWcoiHoylpLYR7aV0Hp615ExN0nmjkYIZsiSbHRry5rWeh3ih9HeA6RYcJbezuyc:GNoizkO0Hp5JyZAbHReBYTf6RBo

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
info@opttools-tw.com
Password:
kV$bSqJ1 daniel

Signatures

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

Snake Keylogger payload 6 IoCs

Processes:

resource	yara_rule
behavioral25/memory/1244-67-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral25/memory/1244-69-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral25/memory/1244-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral25/memory/1244-71-0x00000000004206CE-mapping.dmp	family_snakekeylogger
behavioral25/memory/1244-73-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral25/memory/1244-75-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

e1cf59372694c7d46d84d0139b40d41b.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e1cf59372694c7d46d84d0139b40d41b.exe
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e1cf59372694c7d46d84d0139b40d41b.exe
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e1cf59372694c7d46d84d0139b40d41b.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

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

Processes:

e1cf59372694c7d46d84d0139b40d41b.exe

description pid process target process

PID 944 set thread context of 1244 944 e1cf59372694c7d46d84d0139b40d41b.exe e1cf59372694c7d46d84d0139b40d41b.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

556 schtasks.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 944 set thread context of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe

pid	process
556	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

e1cf59372694c7d46d84d0139b40d41b.exee1cf59372694c7d46d84d0139b40d41b.exepowershell.exe

pid	process
944	e1cf59372694c7d46d84d0139b40d41b.exe
944	e1cf59372694c7d46d84d0139b40d41b.exe
944	e1cf59372694c7d46d84d0139b40d41b.exe
944	e1cf59372694c7d46d84d0139b40d41b.exe
944	e1cf59372694c7d46d84d0139b40d41b.exe
944	e1cf59372694c7d46d84d0139b40d41b.exe
1244	e1cf59372694c7d46d84d0139b40d41b.exe
728	powershell.exe
1244	e1cf59372694c7d46d84d0139b40d41b.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

e1cf59372694c7d46d84d0139b40d41b.exee1cf59372694c7d46d84d0139b40d41b.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	944	e1cf59372694c7d46d84d0139b40d41b.exe
Token: SeDebugPrivilege	1244	e1cf59372694c7d46d84d0139b40d41b.exe
Token: SeDebugPrivilege	728	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

e1cf59372694c7d46d84d0139b40d41b.exe

outlook_office_path 1 IoCs

Processes:

e1cf59372694c7d46d84d0139b40d41b.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e1cf59372694c7d46d84d0139b40d41b.exe

outlook_win_path 1 IoCs

Processes:

e1cf59372694c7d46d84d0139b40d41b.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e1cf59372694c7d46d84d0139b40d41b.exe

C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe
"C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:944

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QdpKtuLDI.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:728

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QdpKtuLDI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1F2.tmp"
2⤵
- Creates scheduled task(s)
PID:556

C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe
"C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe"
2⤵
PID:1200

C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe
"C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe"
2⤵
PID:1208

C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe
"C:\Users\Admin\AppData\Local\Temp\e1cf59372694c7d46d84d0139b40d41b.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1244

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB1F2.tmp
Filesize
1KB

MD5
e70a9468be36f26887b55c00d0294234

SHA1
d1b588d1616081943e5992189882221d23cb219d

SHA256
31dc318985a51ef51b1d99bb7d81150b06b6c34de62c5047df6ee7fd8a1e9582

SHA512
2ef0b48a039d769623d21c3a652c2a06c30ccc8dc876dbd6cc1479b01b91190ad5ab1eafd872507ed476e96b841c9e8543f0302ae88db809fb3d55081fe6afd8

Download Submit
memory/556-60-0x0000000000000000-mapping.dmp

Download
memory/728-59-0x0000000000000000-mapping.dmp

Download
memory/728-78-0x000000006F1E0000-0x000000006F78B000-memory.dmp

Filesize
5.7MB

Download
memory/728-77-0x000000006F1E0000-0x000000006F78B000-memory.dmp

Filesize
5.7MB

Download
memory/944-63-0x0000000002280000-0x00000000022A8000-memory.dmp

Filesize
160KB

Download
memory/944-58-0x00000000043D0000-0x0000000004432000-memory.dmp

Filesize
392KB

Download
memory/944-57-0x0000000000340000-0x000000000034A000-memory.dmp

Filesize
40KB

Download
memory/944-54-0x0000000000C60000-0x0000000000D42000-memory.dmp

Filesize
904KB

Download
memory/944-55-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download
memory/944-56-0x0000000000330000-0x0000000000344000-memory.dmp

Filesize
80KB

Download
memory/1244-69-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1244-67-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1244-70-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1244-71-0x00000000004206CE-mapping.dmp

Download
memory/1244-73-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1244-75-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1244-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1244-64-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

description	pid	process	target process
PID 944 wrote to memory of 728	944	e1cf59372694c7d46d84d0139b40d41b.exe	powershell.exe
PID 944 wrote to memory of 728	944	e1cf59372694c7d46d84d0139b40d41b.exe	powershell.exe
PID 944 wrote to memory of 728	944	e1cf59372694c7d46d84d0139b40d41b.exe	powershell.exe
PID 944 wrote to memory of 728	944	e1cf59372694c7d46d84d0139b40d41b.exe	powershell.exe
PID 944 wrote to memory of 556	944	e1cf59372694c7d46d84d0139b40d41b.exe	schtasks.exe
PID 944 wrote to memory of 556	944	e1cf59372694c7d46d84d0139b40d41b.exe	schtasks.exe
PID 944 wrote to memory of 556	944	e1cf59372694c7d46d84d0139b40d41b.exe	schtasks.exe
PID 944 wrote to memory of 556	944	e1cf59372694c7d46d84d0139b40d41b.exe	schtasks.exe
PID 944 wrote to memory of 1200	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1200	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1200	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1200	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1208	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1208	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1208	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1208	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe
PID 944 wrote to memory of 1244	944	e1cf59372694c7d46d84d0139b40d41b.exe	e1cf59372694c7d46d84d0139b40d41b.exe