snakekeylogger | 58639b55ef4faebf0a6ab625ecdd348508fab2fc433a1dcc2bee02b20bee2078

General

Target

Nmtdeo.exe
Size

277KB
MD5

597b9168856a6693e107e7f1e80483e7
SHA1

ce15dbb1a3397127def9ab607694a82c14abfa2a
SHA256

58639b55ef4faebf0a6ab625ecdd348508fab2fc433a1dcc2bee02b20bee2078
SHA512

6b431b15a49114e92705e7549dd1143dcbc40c78f2e89c099cda3f3e312306dfb330535d01b41f53f90116e6126a1662b120def47b4e02af7f71a102891b969b
SSDEEP

6144:+KbhmkakvzstDVP+8SJIDRINLLOxJSksFGAtvHLqsIaP7i2NnD:+N3PZmvJIt6LOXSBFGeBIaj7N

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6339928612:AAF--PH7Kfwf4Dph8taQxUsHJm3oLkMeciE/sendMessage?chat_id=5532763142

Signatures

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

Snake Keylogger payload 6 IoCs

resource	yara_rule
behavioral1/memory/2492-11-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2492-10-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2492-14-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2492-16-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2492-18-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2492-21-0x0000000004470000-0x00000000044B0000-memory.dmp	family_snakekeylogger

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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Nmtdeo.exe
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Nmtdeo.exe
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Nmtdeo.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.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1292 set thread context of 2492	1292	Nmtdeo.exe	37

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2548	ipconfig.exe
2772	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2492	Nmtdeo.exe
2492	Nmtdeo.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1292	Nmtdeo.exe
Token: SeDebugPrivilege	2492	Nmtdeo.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 2324	1292	Nmtdeo.exe	29
PID 1292 wrote to memory of 2324	1292	Nmtdeo.exe	29
PID 1292 wrote to memory of 2324	1292	Nmtdeo.exe	29
PID 1292 wrote to memory of 2324	1292	Nmtdeo.exe	29
PID 2324 wrote to memory of 2772	2324	cmd.exe	31
PID 2324 wrote to memory of 2772	2324	cmd.exe	31
PID 2324 wrote to memory of 2772	2324	cmd.exe	31
PID 2324 wrote to memory of 2772	2324	cmd.exe	31
PID 1292 wrote to memory of 1696	1292	Nmtdeo.exe	34
PID 1292 wrote to memory of 1696	1292	Nmtdeo.exe	34
PID 1292 wrote to memory of 1696	1292	Nmtdeo.exe	34
PID 1292 wrote to memory of 1696	1292	Nmtdeo.exe	34
PID 1696 wrote to memory of 2548	1696	cmd.exe	36
PID 1696 wrote to memory of 2548	1696	cmd.exe	36
PID 1696 wrote to memory of 2548	1696	cmd.exe	36
PID 1696 wrote to memory of 2548	1696	cmd.exe	36
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37
PID 1292 wrote to memory of 2492	1292	Nmtdeo.exe	37

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Nmtdeo.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Nmtdeo.exe

C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe
"C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /release
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /release
    3⤵
    - Gathers network information
    PID:2772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /renew
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1696
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /renew
    3⤵
    - Gathers network information
    PID:2548
- C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe
  C:\Users\Admin\AppData\Local\Temp\Nmtdeo.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1292-0-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-1-0x0000000000340000-0x000000000038C000-memory.dmp

Filesize
304KB

Download
memory/1292-2-0x00000000002A0000-0x00000000002E8000-memory.dmp

Filesize
288KB

Download
memory/1292-3-0x0000000004870000-0x00000000048B0000-memory.dmp

Filesize
256KB

Download
memory/1292-4-0x0000000000440000-0x0000000000476000-memory.dmp

Filesize
216KB

Download
memory/1292-5-0x0000000000580000-0x00000000005CC000-memory.dmp

Filesize
304KB

Download
memory/1292-6-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-7-0x0000000004870000-0x00000000048B0000-memory.dmp

Filesize
256KB

Download
memory/1292-19-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2492-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2492-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2492-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2492-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2492-14-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2492-16-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2492-18-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2492-20-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2492-8-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2492-21-0x0000000004470000-0x00000000044B0000-memory.dmp

Filesize
256KB

Download
memory/2492-22-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing