snakekeylogger | c6643f3a42c75b2c3b774c9f07bafa978b8ac79a4620a380067a3b4fab7b85a4

General

Target

Mybxbutrghm.exe
Size

36KB
MD5

e3943355389d2af1de3dea068e7ca43e
SHA1

da4c486cdc0f0329f2e2969d9df698b91599d88c
SHA256

07f7c6e2ca27e05f3e3924f8b32cf92de6493ec4b7657beddc3243d7ae49cca5
SHA512

6cfb9713e4227189cf6401143b2f107bf40ccae5e227cb2e460fa82007297c510eaff72e6b7b599d762672d9146587770c2aeebfba80eba488c9167d29d61e7e
SSDEEP

768:RZOZ3fnxNzV5j1DLas3RqtGx+roLYP+k5:RZifXjj1DLasBC+k5

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6491126749:AAEgYHjfebL8yDkuzneMucym5CaT8YIRGJE/sendMessage?chat_id=5262627523

Signatures

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

Snake Keylogger payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1604-9-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Mybxbutrghm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ssssss = "C:\\Users\\Admin\\AppData\\Roaming\\ssssss.exe"	Mybxbutrghm.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

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

Processes:

Mybxbutrghm.exe

description pid process target process

PID 4184 set thread context of 1604 4184 Mybxbutrghm.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

1604 MSBuild.exe
1604 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Mybxbutrghm.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4184 Mybxbutrghm.exe
Token: SeDebugPrivilege 1604 MSBuild.exe

flow	ioc
30	checkip.dyndns.org

description	pid	process	target process
PID 4184 set thread context of 1604	4184	Mybxbutrghm.exe	MSBuild.exe

pid	process
1604	MSBuild.exe
1604	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4184	Mybxbutrghm.exe
Token: SeDebugPrivilege	1604	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Mybxbutrghm.exe

description	pid	process	target process
PID 4184 wrote to memory of 1604	4184	Mybxbutrghm.exe	MSBuild.exe
PID 4184 wrote to memory of 1604	4184	Mybxbutrghm.exe	MSBuild.exe
PID 4184 wrote to memory of 1604	4184	Mybxbutrghm.exe	MSBuild.exe
PID 4184 wrote to memory of 1604	4184	Mybxbutrghm.exe	MSBuild.exe
PID 4184 wrote to memory of 1604	4184	Mybxbutrghm.exe	MSBuild.exe
PID 4184 wrote to memory of 1604	4184	Mybxbutrghm.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Mybxbutrghm.exe
"C:\Users\Admin\AppData\Local\Temp\Mybxbutrghm.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4184

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1604-14-0x00007FFCD8360000-0x00007FFCD8E21000-memory.dmp

Filesize
10.8MB

Download
memory/1604-12-0x00007FFCD8360000-0x00007FFCD8E21000-memory.dmp

Filesize
10.8MB

Download
memory/1604-17-0x00000234BF050000-0x00000234BF212000-memory.dmp

Filesize
1.8MB

Download
memory/1604-16-0x00000234A6440000-0x00000234A6490000-memory.dmp

Filesize
320KB

Download
memory/1604-9-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1604-15-0x00000234BEE70000-0x00000234BEE80000-memory.dmp

Filesize
64KB

Download
memory/1604-13-0x00000234BEE70000-0x00000234BEE80000-memory.dmp

Filesize
64KB

Download
memory/4184-6-0x00007FFCD8360000-0x00007FFCD8E21000-memory.dmp

Filesize
10.8MB

Download
memory/4184-4-0x00000192EE040000-0x00000192EE076000-memory.dmp

Filesize
216KB

Download
memory/4184-11-0x00007FFCD8360000-0x00007FFCD8E21000-memory.dmp

Filesize
10.8MB

Download
memory/4184-7-0x00000192EDDC0000-0x00000192EDDD0000-memory.dmp

Filesize
64KB

Download
memory/4184-1-0x00007FFCD8360000-0x00007FFCD8E21000-memory.dmp

Filesize
10.8MB

Download
memory/4184-0-0x00000192EB780000-0x00000192EB790000-memory.dmp

Filesize
64KB

Download
memory/4184-5-0x00000192EE210000-0x00000192EE25C000-memory.dmp

Filesize
304KB

Download
memory/4184-3-0x00000192EDD60000-0x00000192EDD98000-memory.dmp

Filesize
224KB

Download
memory/4184-2-0x00000192EDD10000-0x00000192EDD60000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads