snakekeylogger | fac373a26a5f0458890deea7bc93d6ea6e769eeb6440d56c5adf9f3da8838c90

General

Target

Yjntdre.exe
Size

26KB
MD5

f02100eb5f3140c05def18e397fd6175
SHA1

dabcc934eec02af1b9faaed6e911791272c1a089
SHA256

fac373a26a5f0458890deea7bc93d6ea6e769eeb6440d56c5adf9f3da8838c90
SHA512

8825f91409483d0ea8113ddb37bb7115c381fc2d5e5d2135b71ed04779714fd8f6f9ac9bb114c88bccc5c5efbb184de959d0af03aeb0a8faf06ec298154e493f
SSDEEP

384:5PQ9Uh8DHZ7+tCO0VobNPnbn+b/AeH9F9wGjEnAtNCSGFqUD:duZtoZPbn+rLXiiEnuCLFqUD

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/3060-10-0x0000000140000000-0x0000000140022000-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-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\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:

Yjntdre.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dddddd,exe = "C:\\Users\\Admin\\AppData\\Roaming\\dddddd,exe.exe"	Yjntdre.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

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

Processes:

Yjntdre.exe

description pid process target process

PID 1524 set thread context of 3060 1524 Yjntdre.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

3060 MSBuild.exe
3060 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Yjntdre.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1524 Yjntdre.exe
Token: SeDebugPrivilege 3060 MSBuild.exe

flow	ioc
46	checkip.dyndns.org

description	pid	process	target process
PID 1524 set thread context of 3060	1524	Yjntdre.exe	MSBuild.exe

pid	process
3060	MSBuild.exe
3060	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1524	Yjntdre.exe
Token: SeDebugPrivilege	3060	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Yjntdre.exe

description	pid	process	target process
PID 1524 wrote to memory of 3060	1524	Yjntdre.exe	MSBuild.exe
PID 1524 wrote to memory of 3060	1524	Yjntdre.exe	MSBuild.exe
PID 1524 wrote to memory of 3060	1524	Yjntdre.exe	MSBuild.exe
PID 1524 wrote to memory of 3060	1524	Yjntdre.exe	MSBuild.exe
PID 1524 wrote to memory of 3060	1524	Yjntdre.exe	MSBuild.exe
PID 1524 wrote to memory of 3060	1524	Yjntdre.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\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-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Yjntdre.exe
"C:\Users\Admin\AppData\Local\Temp\Yjntdre.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524

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:3060

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

Loading Replay Monitor...

Downloads

memory/1524-8-0x0000025D73BB0000-0x0000025D73BC0000-memory.dmp

Filesize
64KB

Download
memory/1524-4-0x0000025D73DC0000-0x0000025D73DF8000-memory.dmp

Filesize
224KB

Download
memory/1524-0-0x0000025D71E00000-0x0000025D71E0C000-memory.dmp

Filesize
48KB

Download
memory/1524-3-0x0000025D73BC0000-0x0000025D73C10000-memory.dmp

Filesize
320KB

Download
memory/1524-13-0x00007FFB47800000-0x00007FFB482C1000-memory.dmp

Filesize
10.8MB

Download
memory/1524-5-0x0000025D747A0000-0x0000025D747D6000-memory.dmp

Filesize
216KB

Download
memory/1524-6-0x0000025D747E0000-0x0000025D7482C000-memory.dmp

Filesize
304KB

Download
memory/1524-7-0x00007FFB47800000-0x00007FFB482C1000-memory.dmp

Filesize
10.8MB

Download
memory/1524-2-0x0000025D73BB0000-0x0000025D73BC0000-memory.dmp

Filesize
64KB

Download
memory/1524-1-0x00007FFB47800000-0x00007FFB482C1000-memory.dmp

Filesize
10.8MB

Download
memory/3060-12-0x00007FFB47800000-0x00007FFB482C1000-memory.dmp

Filesize
10.8MB

Download
memory/3060-10-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/3060-14-0x0000026B712B0000-0x0000026B712C0000-memory.dmp

Filesize
64KB

Download
memory/3060-15-0x00007FFB47800000-0x00007FFB482C1000-memory.dmp

Filesize
10.8MB

Download
memory/3060-16-0x0000026B58920000-0x0000026B58970000-memory.dmp

Filesize
320KB

Download
memory/3060-17-0x0000026B71590000-0x0000026B71752000-memory.dmp

Filesize
1.8MB

Download
memory/3060-18-0x0000026B712B0000-0x0000026B712C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads