snakekeylogger | 98bba6280dc438b35e3d0a4f468d1e50dd44bdafdd3e8c396a6dacf6be50fd71

General

Target

PROFORMA INVOICE.scr
Size

22KB
MD5

4480e5c41df955746e6b762828e64ddb
SHA1

75fd2876572e72da98a99065152c338f935d722f
SHA256

98bba6280dc438b35e3d0a4f468d1e50dd44bdafdd3e8c396a6dacf6be50fd71
SHA512

92db76915c468ab2e3a1185b3ee5a0d8849bfb623e5bfdf0fa128a002b16e768097b9440c905a4cb38b70aee9b36c21ce2db57f150f93fc5845ff5f667957a41

Score

10^/10

snakekeylogger evasion keylogger stealer trojan

Malware Config

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/4016-24-0x0000000000400000-0x000000000046A000-memory.dmp	family_snakekeylogger
behavioral2/memory/4016-26-0x000000000046467E-mapping.dmp	family_snakekeylogger

Turns off Windows Defender SpyNet reporting 2 TTPs
evasion

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Nirsoft 3 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe	Nirsoft
C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe	Nirsoft
C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe	Nirsoft

Executes dropped EXE 2 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exe

pid process

3556 AdvancedRun.exe
3544 AdvancedRun.exe

Windows security modification 2 TTPs 10 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

PROFORMA INVOICE.scr

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	PROFORMA INVOICE.scr
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	PROFORMA INVOICE.scr
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	PROFORMA INVOICE.scr
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	PROFORMA INVOICE.scr
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	PROFORMA INVOICE.scr
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	PROFORMA INVOICE.scr
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	PROFORMA INVOICE.scr
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.scr = "0"	PROFORMA INVOICE.scr
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	PROFORMA INVOICE.scr
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	PROFORMA INVOICE.scr

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

24 checkip.dyndns.org
27 freegeoip.app
28 freegeoip.app

flow	ioc
24	checkip.dyndns.org
27	freegeoip.app
28	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs

Processes:

PROFORMA INVOICE.scr

pid	process
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr

Suspicious use of SetThreadContext 1 IoCs

Processes:

PROFORMA INVOICE.scr

description pid process target process

PID 3980 set thread context of 4016 3980 PROFORMA INVOICE.scr regsvcs.exe
Drops file in Windows directory 1 IoCs

Processes:

WerFault.exe

description ioc process

File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp WerFault.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

2616 3980 WerFault.exe PROFORMA INVOICE.scr
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2348 timeout.exe

description	pid	process	target process
PID 3980 set thread context of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe

description	ioc	process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	WerFault.exe

pid	pid_target	process	target process
2616	3980	WerFault.exe	PROFORMA INVOICE.scr

pid	process
2348	timeout.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

AdvancedRun.exeAdvancedRun.exepowershell.exePROFORMA INVOICE.scrregsvcs.exeWerFault.exe

pid	process
3556	AdvancedRun.exe
3556	AdvancedRun.exe
3556	AdvancedRun.exe
3556	AdvancedRun.exe
3544	AdvancedRun.exe
3544	AdvancedRun.exe
3544	AdvancedRun.exe
3544	AdvancedRun.exe
3156	powershell.exe
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
3980	PROFORMA INVOICE.scr
4016	regsvcs.exe
3156	powershell.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
2616	WerFault.exe
3156	powershell.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

PROFORMA INVOICE.scrAdvancedRun.exeAdvancedRun.exepowershell.exeregsvcs.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	3980	PROFORMA INVOICE.scr
Token: SeDebugPrivilege	3556	AdvancedRun.exe
Token: SeImpersonatePrivilege	3556	AdvancedRun.exe
Token: SeDebugPrivilege	3544	AdvancedRun.exe
Token: SeImpersonatePrivilege	3544	AdvancedRun.exe
Token: SeDebugPrivilege	3156	powershell.exe
Token: SeDebugPrivilege	4016	regsvcs.exe
Token: SeRestorePrivilege	2616	WerFault.exe
Token: SeBackupPrivilege	2616	WerFault.exe
Token: SeBackupPrivilege	2616	WerFault.exe
Token: SeDebugPrivilege	2616	WerFault.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

PROFORMA INVOICE.scrAdvancedRun.execmd.exe

description	pid	process	target process
PID 3980 wrote to memory of 3556	3980	PROFORMA INVOICE.scr	AdvancedRun.exe
PID 3980 wrote to memory of 3556	3980	PROFORMA INVOICE.scr	AdvancedRun.exe
PID 3980 wrote to memory of 3556	3980	PROFORMA INVOICE.scr	AdvancedRun.exe
PID 3556 wrote to memory of 3544	3556	AdvancedRun.exe	AdvancedRun.exe
PID 3556 wrote to memory of 3544	3556	AdvancedRun.exe	AdvancedRun.exe
PID 3556 wrote to memory of 3544	3556	AdvancedRun.exe	AdvancedRun.exe
PID 3980 wrote to memory of 3156	3980	PROFORMA INVOICE.scr	powershell.exe
PID 3980 wrote to memory of 3156	3980	PROFORMA INVOICE.scr	powershell.exe
PID 3980 wrote to memory of 3156	3980	PROFORMA INVOICE.scr	powershell.exe
PID 3980 wrote to memory of 1208	3980	PROFORMA INVOICE.scr	cmd.exe
PID 3980 wrote to memory of 1208	3980	PROFORMA INVOICE.scr	cmd.exe
PID 3980 wrote to memory of 1208	3980	PROFORMA INVOICE.scr	cmd.exe
PID 1208 wrote to memory of 2348	1208	cmd.exe	timeout.exe
PID 1208 wrote to memory of 2348	1208	cmd.exe	timeout.exe
PID 1208 wrote to memory of 2348	1208	cmd.exe	timeout.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe
PID 3980 wrote to memory of 4016	3980	PROFORMA INVOICE.scr	regsvcs.exe

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.scr
"C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.scr" /S
1⤵
- Windows security modification
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3980

C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3556

C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe
"C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe" /SpecialRun 4101d8 3556
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3544

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.scr" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3156

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:1208

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:2348

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 1668
2⤵
- Drops file in Windows directory
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2616

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Disabling Security Tools

3

T1089

Modify Registry

3

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe
MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe
MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
C:\Users\Admin\AppData\Local\Temp\4c3a78e0-f87b-4e29-9692-71efd833cafa\AdvancedRun.exe
MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
memory/1208-15-0x0000000000000000-mapping.dmp

Download
memory/2348-19-0x0000000000000000-mapping.dmp

Download
memory/2616-33-0x0000000004E00000-0x0000000004E01000-memory.dmp

Filesize
4KB

Download
memory/3156-37-0x0000000007D80000-0x0000000007D81000-memory.dmp

Filesize
4KB

Download
memory/3156-20-0x0000000004410000-0x0000000004411000-memory.dmp

Filesize
4KB

Download
memory/3156-56-0x0000000008FA0000-0x0000000008FA1000-memory.dmp

Filesize
4KB

Download
memory/3156-54-0x0000000008FB0000-0x0000000008FB1000-memory.dmp

Filesize
4KB

Download
memory/3156-35-0x0000000007AB0000-0x0000000007AB1000-memory.dmp

Filesize
4KB

Download
memory/3156-14-0x0000000000000000-mapping.dmp

Download
memory/3156-53-0x0000000004413000-0x0000000004414000-memory.dmp

Filesize
4KB

Download
memory/3156-16-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/3156-17-0x0000000004240000-0x0000000004241000-memory.dmp

Filesize
4KB

Download
memory/3156-34-0x0000000007480000-0x0000000007481000-memory.dmp

Filesize
4KB

Download
memory/3156-18-0x0000000006DA0000-0x0000000006DA1000-memory.dmp

Filesize
4KB

Download
memory/3156-42-0x0000000008AF0000-0x0000000008B23000-memory.dmp

Filesize
204KB

Download
memory/3156-21-0x0000000004412000-0x0000000004413000-memory.dmp

Filesize
4KB

Download
memory/3156-22-0x0000000006CA0000-0x0000000006CA1000-memory.dmp

Filesize
4KB

Download
memory/3156-23-0x00000000075B0000-0x00000000075B1000-memory.dmp

Filesize
4KB

Download
memory/3156-52-0x0000000009010000-0x0000000009011000-memory.dmp

Filesize
4KB

Download
memory/3156-51-0x0000000008CC0000-0x0000000008CC1000-memory.dmp

Filesize
4KB

Download
memory/3156-25-0x00000000073D0000-0x00000000073D1000-memory.dmp

Filesize
4KB

Download
memory/3156-28-0x0000000007620000-0x0000000007621000-memory.dmp

Filesize
4KB

Download
memory/3156-50-0x000000007E240000-0x000000007E241000-memory.dmp

Filesize
4KB

Download
memory/3156-49-0x0000000008AD0000-0x0000000008AD1000-memory.dmp

Filesize
4KB

Download
memory/3544-12-0x0000000000000000-mapping.dmp

Download
memory/3556-9-0x0000000000000000-mapping.dmp

Download
memory/3980-5-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/3980-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/3980-3-0x0000000000F80000-0x0000000000F81000-memory.dmp

Filesize
4KB

Download
memory/3980-6-0x0000000008470000-0x0000000008471000-memory.dmp

Filesize
4KB

Download
memory/3980-7-0x0000000005F80000-0x000000000605B000-memory.dmp

Filesize
876KB

Download
memory/3980-8-0x000000000AA10000-0x000000000AA11000-memory.dmp

Filesize
4KB

Download
memory/4016-38-0x0000000005FF0000-0x0000000005FF1000-memory.dmp

Filesize
4KB

Download
memory/4016-39-0x00000000061C0000-0x00000000061C1000-memory.dmp

Filesize
4KB

Download
memory/4016-40-0x0000000006290000-0x0000000006291000-memory.dmp

Filesize
4KB

Download
memory/4016-36-0x00000000051C0000-0x00000000051C1000-memory.dmp

Filesize
4KB

Download
memory/4016-27-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/4016-26-0x000000000046467E-mapping.dmp

Download
memory/4016-24-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads