snakekeylogger | 4ee9edd9ef3a92e65f7db6b1dde1bf67d1b58a79bb47fc26f6c18675baa3ec7f

General

Target

HTWP0987600.exe
Size

527KB
MD5

3f48fc323c58106614bfe2719971411c
SHA1

47b50ce885d36c013a43b0cc8c235608277caf7c
SHA256

806c4451b1153f5453fdf0a09465a1f82018c3f01b3381a559564143f6d13796
SHA512

a1e93d845b9007622f2d634d346754ff1721d4769ce9200ee2902f81e8e51d0d6450fa1105855b143f50567509b9aa43d64d8709ac71ed13575793490a816b27
SSDEEP

12288:u6Wq4aaE6KwyF5L0Y2D1PqLQxnE3nmtzvF8wWVa:0thEVaPqLqnVy7a

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 1 IoCs

resource	yara_rule
behavioral2/memory/2192-23-0x0000000000380000-0x00000000003A6000-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
4056	Milburr.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\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
18	checkip.dyndns.org
21	reallyfreegeoip.org
22	reallyfreegeoip.org

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3968-13-0x0000000000400000-0x00000000004E6000-memory.dmp	autoit_exe
behavioral2/memory/4056-29-0x0000000000400000-0x00000000004E6000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4056 set thread context of 2192	4056	Milburr.exe	87

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3968-0-0x0000000000400000-0x00000000004E6000-memory.dmp	upx
behavioral2/files/0x000c000000023c21-10.dat	upx
behavioral2/memory/3968-13-0x0000000000400000-0x00000000004E6000-memory.dmp	upx
behavioral2/memory/4056-29-0x0000000000400000-0x00000000004E6000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4872	4056	WerFault.exe	86

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	HTWP0987600.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
2192	RegSvcs.exe
2192	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4056	Milburr.exe
4056	Milburr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3968	HTWP0987600.exe
3968	HTWP0987600.exe
4056	Milburr.exe
4056	Milburr.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3968	HTWP0987600.exe
3968	HTWP0987600.exe
4056	Milburr.exe
4056	Milburr.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 4056	3968	HTWP0987600.exe	86
PID 3968 wrote to memory of 4056	3968	HTWP0987600.exe	86
PID 3968 wrote to memory of 4056	3968	HTWP0987600.exe	86
PID 4056 wrote to memory of 2192	4056	Milburr.exe	87
PID 4056 wrote to memory of 2192	4056	Milburr.exe	87
PID 4056 wrote to memory of 2192	4056	Milburr.exe	87
PID 4056 wrote to memory of 2192	4056	Milburr.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\HTWP0987600.exe
"C:\Users\Admin\AppData\Local\Temp\HTWP0987600.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Users\Admin\AppData\Local\batchers\Milburr.exe
  "C:\Users\Admin\AppData\Local\Temp\HTWP0987600.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:4056
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\HTWP0987600.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:2192
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4056 -s 760
    3⤵
    - Program crash
    PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4056 -ip 4056
1⤵
PID:4020

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

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

Filesize
527KB

MD5
3f48fc323c58106614bfe2719971411c

SHA1
47b50ce885d36c013a43b0cc8c235608277caf7c

SHA256
806c4451b1153f5453fdf0a09465a1f82018c3f01b3381a559564143f6d13796

SHA512
a1e93d845b9007622f2d634d346754ff1721d4769ce9200ee2902f81e8e51d0d6450fa1105855b143f50567509b9aa43d64d8709ac71ed13575793490a816b27

Download Submit
memory/2192-25-0x0000000005190000-0x0000000005734000-memory.dmp

Filesize
5.6MB

Download
memory/2192-26-0x0000000004CD0000-0x0000000004D6C000-memory.dmp

Filesize
624KB

Download
memory/2192-35-0x0000000005180000-0x000000000518A000-memory.dmp

Filesize
40KB

Download
memory/2192-34-0x0000000005EE0000-0x0000000005F72000-memory.dmp

Filesize
584KB

Download
memory/2192-23-0x0000000000380000-0x00000000003A6000-memory.dmp

Filesize
152KB

Download
memory/2192-24-0x0000000073D0E000-0x0000000073D0F000-memory.dmp

Filesize
4KB

Download
memory/2192-33-0x0000000006010000-0x00000000061D2000-memory.dmp

Filesize
1.8MB

Download
memory/2192-32-0x0000000000A30000-0x0000000000A80000-memory.dmp

Filesize
320KB

Download
memory/2192-27-0x0000000073D00000-0x00000000744B0000-memory.dmp

Filesize
7.7MB

Download
memory/2192-31-0x0000000073D00000-0x00000000744B0000-memory.dmp

Filesize
7.7MB

Download
memory/2192-30-0x0000000073D0E000-0x0000000073D0F000-memory.dmp

Filesize
4KB

Download
memory/3968-13-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/3968-0-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/3968-7-0x0000000003370000-0x0000000003470000-memory.dmp

Filesize
1024KB

Download
memory/4056-29-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/4056-21-0x0000000003B20000-0x0000000003C20000-memory.dmp

Filesize
1024KB

Download

Analysis

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