snakekeylogger | 18efcc58d9ea4a8de71c9007578c896b544bab8186145df495ee4126f2d08268

General

Target

Ipehud.exe
Size

185KB
MD5

8865f588e1ea32b91dfd0130ae6469bc
SHA1

d191e628a2998aba203c6482970dafa09bb66729
SHA256

18efcc58d9ea4a8de71c9007578c896b544bab8186145df495ee4126f2d08268
SHA512

0b2fea121298d60b83b2f314da08eed44649e919104c714ba8234eddcaacf43cb049e173705947b0b11c55188b663fc5c5a4c303d262ec34fac18aa9d6328e0d
SSDEEP

3072:QlFOT6UIRGbCcoNlFWtwCpoE5as+rN1Wco0vAm26/TcEBC1RB:QlFudIYmcozFiwCGE5aXWcoIzv/Tcr1X

Score

10^/10

snakekeylogger collection keylogger persistence stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6566589691:AAFApTT4-vdsgK7fcVU9cwFelVxNx3knl8M/sendMessage?chat_id=5582419717

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/4176-10-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger
behavioral2/memory/4176-18-0x000002B2ECFB0000-0x000002B2ECFC0000-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-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\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:

Ipehud.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fffffffff = "C:\\Users\\Admin\\AppData\\Roaming\\fffffffff.exe"	Ipehud.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

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

Processes:

Ipehud.exe

description pid process target process

PID 520 set thread context of 4176 520 Ipehud.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

4176 MSBuild.exe
4176 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Ipehud.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 520 Ipehud.exe
Token: SeDebugPrivilege 4176 MSBuild.exe

flow	ioc
57	checkip.dyndns.org

description	pid	process	target process
PID 520 set thread context of 4176	520	Ipehud.exe	MSBuild.exe

pid	process
4176	MSBuild.exe
4176	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	520	Ipehud.exe
Token: SeDebugPrivilege	4176	MSBuild.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Ipehud.exe

description	pid	process	target process
PID 520 wrote to memory of 4176	520	Ipehud.exe	MSBuild.exe
PID 520 wrote to memory of 4176	520	Ipehud.exe	MSBuild.exe
PID 520 wrote to memory of 4176	520	Ipehud.exe	MSBuild.exe
PID 520 wrote to memory of 4176	520	Ipehud.exe	MSBuild.exe
PID 520 wrote to memory of 4176	520	Ipehud.exe	MSBuild.exe
PID 520 wrote to memory of 4176	520	Ipehud.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\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-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Ipehud.exe
"C:\Users\Admin\AppData\Local\Temp\Ipehud.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:520

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:4176

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

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Downloads

memory/520-8-0x00000210EEF10000-0x00000210EEF20000-memory.dmp

Filesize
64KB

Download
memory/520-4-0x00000210D65E0000-0x00000210D6628000-memory.dmp

Filesize
288KB

Download
memory/520-0-0x00000210D4860000-0x00000210D4892000-memory.dmp

Filesize
200KB

Download
memory/520-3-0x00000210EEF10000-0x00000210EEF20000-memory.dmp

Filesize
64KB

Download
memory/520-7-0x00007FFAA37A0000-0x00007FFAA4261000-memory.dmp

Filesize
10.8MB

Download
memory/520-5-0x00000210EEEB0000-0x00000210EEEE6000-memory.dmp

Filesize
216KB

Download
memory/520-6-0x00000210EF090000-0x00000210EF0DC000-memory.dmp

Filesize
304KB

Download
memory/520-12-0x00007FFAA37A0000-0x00007FFAA4261000-memory.dmp

Filesize
10.8MB

Download
memory/520-2-0x00007FFAA37A0000-0x00007FFAA4261000-memory.dmp

Filesize
10.8MB

Download
memory/520-1-0x00000210D4C40000-0x00000210D4C46000-memory.dmp

Filesize
24KB

Download
memory/4176-10-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/4176-13-0x00007FFAA37A0000-0x00007FFAA4261000-memory.dmp

Filesize
10.8MB

Download
memory/4176-14-0x000002B2ECFB0000-0x000002B2ECFC0000-memory.dmp

Filesize
64KB

Download
memory/4176-15-0x000002B2EE7F0000-0x000002B2EE840000-memory.dmp

Filesize
320KB

Download
memory/4176-16-0x000002B2EF580000-0x000002B2EF742000-memory.dmp

Filesize
1.8MB

Download
memory/4176-17-0x00007FFAA37A0000-0x00007FFAA4261000-memory.dmp

Filesize
10.8MB

Download
memory/4176-18-0x000002B2ECFB0000-0x000002B2ECFC0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads