snakekeylogger | 8f1be325faa69592642419a3ce86343a7b484853d0a1b27bd769f8435be85381

General

Target

HTWP098760233.exe
Size

458KB
MD5

e98405841a1287e07e371cc0058475ad
SHA1

21a40b88b8b5fbae87836a32e94c32afc4898eb3
SHA256

8f1be325faa69592642419a3ce86343a7b484853d0a1b27bd769f8435be85381
SHA512

801a0cfb1c359c86a54616d6d4a314b18a875bb907c2056c4435e3e9e128dc215dc5a54e95e2676cd4924c15a568dcf596caad7e4b1b4a992ae9dab56da7d9ca
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLUb0z+ZHhHg4vzlN:tthEVaPqLUtNJdblN

Score

10^/10

snakekeylogger collection discovery keylogger stealer upx

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.daipro.com.mx
Port:
587
Username:
[email protected]
Password:
DAIpro123**
Email To:
[email protected]

C2

https://scratchdreams.tk

Signatures

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

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral1/memory/2760-27-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2760-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2760-31-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Milburr.vbs	Milburr.exe

Executes dropped EXE 1 IoCs

pid	Process
1128	Milburr.exe

Loads dropped DLL 1 IoCs

pid	Process
2700	HTWP098760233.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org
8	reallyfreegeoip.org
9	reallyfreegeoip.org

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2700-13-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe
behavioral1/memory/1128-33-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1128 set thread context of 2760	1128	Milburr.exe	31

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2700-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/files/0x0007000000016d0b-9.dat	upx
behavioral1/memory/1128-16-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2700-13-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/1128-33-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HTWP098760233.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Milburr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2760	RegSvcs.exe
2760	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1128	Milburr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2700	HTWP098760233.exe
2700	HTWP098760233.exe
1128	Milburr.exe
1128	Milburr.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2700	HTWP098760233.exe
2700	HTWP098760233.exe
1128	Milburr.exe
1128	Milburr.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 1128	2700	HTWP098760233.exe	30
PID 2700 wrote to memory of 1128	2700	HTWP098760233.exe	30
PID 2700 wrote to memory of 1128	2700	HTWP098760233.exe	30
PID 2700 wrote to memory of 1128	2700	HTWP098760233.exe	30
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31
PID 1128 wrote to memory of 2760	1128	Milburr.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe
"C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Local\batchers\Milburr.exe
  "C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1128
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\HTWP098760233.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\batchers\Milburr.exe

Filesize
458KB

MD5
e98405841a1287e07e371cc0058475ad

SHA1
21a40b88b8b5fbae87836a32e94c32afc4898eb3

SHA256
8f1be325faa69592642419a3ce86343a7b484853d0a1b27bd769f8435be85381

SHA512
801a0cfb1c359c86a54616d6d4a314b18a875bb907c2056c4435e3e9e128dc215dc5a54e95e2676cd4924c15a568dcf596caad7e4b1b4a992ae9dab56da7d9ca

Download Submit
memory/1128-33-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1128-16-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1128-25-0x0000000002D00000-0x0000000002F00000-memory.dmp

Filesize
2.0MB

Download
memory/2700-7-0x0000000003340000-0x0000000003540000-memory.dmp

Filesize
2.0MB

Download
memory/2700-14-0x0000000002700000-0x00000000027C2000-memory.dmp

Filesize
776KB

Download
memory/2700-13-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2700-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2700-36-0x0000000002700000-0x00000000027C2000-memory.dmp

Filesize
776KB

Download
memory/2760-27-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-31-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-34-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2760-35-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2760-37-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2760-38-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download

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