snakekeylogger | b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82

General

Target

b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe
Size

529KB
MD5

a3aa7f4daceddd1ec8b2d9dbcfcf3018
SHA1

6955a629c7b2b1fbe7ab8822814f52c1d1e2ea92
SHA256

b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82
SHA512

e9223cd43b05b111c5f1f44e53a7296a223815f2d6e5aa373e8e11613eebd6dfd01c1998d67934b5dc76d1639f4a06a32e11d2bcd98969d34770f92ed7631b60
SSDEEP

12288:BquErHF6xC9D6DmR1J98w4oknqOOCyQfATt2vFKQ:Erl6kD68JmlotQfPKQ

Score

10^/10

snakekeylogger collection discovery keylogger stealer upx

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.hogarsancamilo.org
Port:
587
Username:
[email protected]
Password:
4??Ur2;ZtS!Y
Email To:
[email protected]

Signatures

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

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral1/memory/2036-26-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2036-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2036-28-0x0000000000400000-0x0000000000426000-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\horrify.vbs	horrify.exe

Executes dropped EXE 1 IoCs

pid	Process
1888	horrify.exe

Loads dropped DLL 1 IoCs

pid	Process
2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2592-14-0x0000000000810000-0x0000000000946000-memory.dmp	autoit_exe
behavioral1/memory/1888-32-0x0000000000360000-0x0000000000496000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 2036	1888	horrify.exe	31

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2592-0-0x0000000000810000-0x0000000000946000-memory.dmp	upx
behavioral1/files/0x0007000000016c88-9.dat	upx
behavioral1/memory/1888-15-0x0000000000360000-0x0000000000496000-memory.dmp	upx
behavioral1/memory/2592-14-0x0000000000810000-0x0000000000946000-memory.dmp	upx
behavioral1/memory/1888-32-0x0000000000360000-0x0000000000496000-memory.dmp	upx

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	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	horrify.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2036	RegSvcs.exe
2036	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1888	horrify.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe
2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe
1888	horrify.exe
1888	horrify.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe
2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe
1888	horrify.exe
1888	horrify.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 1888	2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe	30
PID 2592 wrote to memory of 1888	2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe	30
PID 2592 wrote to memory of 1888	2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe	30
PID 2592 wrote to memory of 1888	2592	b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe	30
PID 1888 wrote to memory of 2036	1888	horrify.exe	31
PID 1888 wrote to memory of 2036	1888	horrify.exe	31
PID 1888 wrote to memory of 2036	1888	horrify.exe	31
PID 1888 wrote to memory of 2036	1888	horrify.exe	31
PID 1888 wrote to memory of 2036	1888	horrify.exe	31
PID 1888 wrote to memory of 2036	1888	horrify.exe	31
PID 1888 wrote to memory of 2036	1888	horrify.exe	31
PID 1888 wrote to memory of 2036	1888	horrify.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe
"C:\Users\Admin\AppData\Local\Temp\b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Users\Admin\AppData\Local\Prober\horrify.exe
  "C:\Users\Admin\AppData\Local\Temp\b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.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:1888
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82.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:2036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\Prober\horrify.exe

Filesize
529KB

MD5
a3aa7f4daceddd1ec8b2d9dbcfcf3018

SHA1
6955a629c7b2b1fbe7ab8822814f52c1d1e2ea92

SHA256
b4bea581890a1f0e57955751fff4878328d67e3ac7d7b825d8f7ef07603a4a82

SHA512
e9223cd43b05b111c5f1f44e53a7296a223815f2d6e5aa373e8e11613eebd6dfd01c1998d67934b5dc76d1639f4a06a32e11d2bcd98969d34770f92ed7631b60

Download Submit
memory/1888-24-0x0000000000AA0000-0x0000000000EA0000-memory.dmp

Filesize
4.0MB

Download
memory/1888-15-0x0000000000360000-0x0000000000496000-memory.dmp

Filesize
1.2MB

Download
memory/1888-32-0x0000000000360000-0x0000000000496000-memory.dmp

Filesize
1.2MB

Download
memory/2036-26-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2036-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2036-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2036-33-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/2036-34-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2036-35-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/2036-36-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-14-0x0000000000810000-0x0000000000946000-memory.dmp

Filesize
1.2MB

Download
memory/2592-7-0x0000000000D50000-0x0000000001150000-memory.dmp

Filesize
4.0MB

Download
memory/2592-0-0x0000000000810000-0x0000000000946000-memory.dmp

Filesize
1.2MB

Download

Analysis

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