snakekeylogger | c99b050645ebbc138018a9dcb4c3029bc1a9aa9376e7541c1011e815942948e1

Resubmissions

01-02-2023 17:02

230201-vj6p3aah39 10

01-02-2023 17:00

230201-vjf5eacg4s 10

01-02-2023 16:57

230201-vgbrxacg2y 10

Analysis

max time kernel
55s
max time network
152s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-02-2023 16:57

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General

Target

Maersk Shipping Docs.exe
Size

618KB
MD5

44d5f28d8c991060173cb3656c41c5f8
SHA1

a84aae8b5f67d315ce5a38ad09ddef4400dbc0b4
SHA256

f9aa33269f7d56d6a16db1c91b5ce0df11fbe25c50d2c3f2222e07b83098d212
SHA512

55bd716b64c97da1b4dde39e7b0da03703ced82733a1cf6a6e33a236c2c66a3462bad1dba2218591e835a0d541d054b4e180b412b59493d7c660ddf420277d3b
SSDEEP

12288:BmsaDf3H2cE2pmlWmYwaiwHliNj6Weh3ih9HnA:BWWmcZs80BYTA

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.wilcon.com.ph
Port:
587
Username:
[email protected]
Password:
password@cashier
Email To:
[email protected]

https://api.telegram.org/bot5839027687:AAGrC4UWgd0JQxMHOf1dCehA-oSrYF_Bez8/sendMessage?chat_id=1094077450

Signatures

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

Snake Keylogger payload 6 IoCs

resource	yara_rule
behavioral15/memory/864-67-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral15/memory/864-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral15/memory/864-69-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral15/memory/864-71-0x000000000042083E-mapping.dmp	family_snakekeylogger
behavioral15/memory/864-73-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral15/memory/864-75-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Maersk Shipping Docs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Maersk Shipping Docs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Maersk Shipping Docs.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 1044 set thread context of 864	1044	Maersk Shipping Docs.exe	32

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1404	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
864	Maersk Shipping Docs.exe
1764	powershell.exe
864	Maersk Shipping Docs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	864	Maersk Shipping Docs.exe
Token: SeDebugPrivilege	1764	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 1764	1044	Maersk Shipping Docs.exe	28
PID 1044 wrote to memory of 1764	1044	Maersk Shipping Docs.exe	28
PID 1044 wrote to memory of 1764	1044	Maersk Shipping Docs.exe	28
PID 1044 wrote to memory of 1764	1044	Maersk Shipping Docs.exe	28
PID 1044 wrote to memory of 1404	1044	Maersk Shipping Docs.exe	30
PID 1044 wrote to memory of 1404	1044	Maersk Shipping Docs.exe	30
PID 1044 wrote to memory of 1404	1044	Maersk Shipping Docs.exe	30
PID 1044 wrote to memory of 1404	1044	Maersk Shipping Docs.exe	30
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32
PID 1044 wrote to memory of 864	1044	Maersk Shipping Docs.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Maersk Shipping Docs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Maersk Shipping Docs.exe

C:\Users\Admin\AppData\Local\Temp\Maersk Shipping Docs.exe
"C:\Users\Admin\AppData\Local\Temp\Maersk Shipping Docs.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\laYtZHUX.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1764
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\laYtZHUX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp872B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1404
- C:\Users\Admin\AppData\Local\Temp\Maersk Shipping Docs.exe
  "C:\Users\Admin\AppData\Local\Temp\Maersk Shipping Docs.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp872B.tmp

Filesize
1KB

MD5
d97e2cd789d7b209382926de7d9510d7

SHA1
08f6337a7486b7f4950e6635d71e7b6d466f3ca3

SHA256
3580321968989cfd7ff2870c3d7176e948499bc5ef9940cab69700dc5d253417

SHA512
cb94cb2b87f205e97670979c1a944b6e8049a7336a4c2c7eb3feb9a00a86ea69af1abc0410472899a8c670b916a522d2f58a3c88d4067be53b180bfaef10f3d2

Download Submit
memory/864-64-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/864-75-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/864-73-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/864-69-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/864-70-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/864-67-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/864-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1044-58-0x0000000004980000-0x00000000049E2000-memory.dmp

Filesize
392KB

Download
memory/1044-63-0x00000000045C0000-0x00000000045E8000-memory.dmp

Filesize
160KB

Download
memory/1044-54-0x00000000000F0000-0x0000000000190000-memory.dmp

Filesize
640KB

Download
memory/1044-57-0x00000000002F0000-0x00000000002FA000-memory.dmp

Filesize
40KB

Download
memory/1044-56-0x00000000002D0000-0x00000000002E4000-memory.dmp

Filesize
80KB

Download
memory/1044-55-0x0000000075501000-0x0000000075503000-memory.dmp

Filesize
8KB

Download
memory/1764-77-0x000000006CA60000-0x000000006D00B000-memory.dmp

Filesize
5.7MB

Download
memory/1764-78-0x000000006CA60000-0x000000006D00B000-memory.dmp

Filesize
5.7MB

Download