snakekeylogger | 615a6cc0182c99d30f1421571d06684ebae0a937a38e91a6dc3925d68148eeb1

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 13:25

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General

Target

dekont.pdf.exe
Size

538KB
MD5

5fefb939b823e2ab745c9be76201cfb4
SHA1

59cad4aab5564363ec8ebd8c9c8784422679f867
SHA256

615a6cc0182c99d30f1421571d06684ebae0a937a38e91a6dc3925d68148eeb1
SHA512

2e56d553ba3110c5dc121113b26468513ea06902343c46bd96b8573672636c12633df10e3c41b7ffbd2c8fbb3b54bb413f5c8adb00596c3447105cc2c3fe9108
SSDEEP

12288:S9r++61ogaQ3+qQCydqVqcgHtC4wtd9qdm1BmJ27XdtTJV:S5++61o1MqJHwBtD

Score

10^/10

snakekeylogger collection discovery execution keylogger spyware stealer

Malware Config

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2932-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-28-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-25-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-23-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2932-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2676	powershell.exe
2464	powershell.exe

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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.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
2	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1344 set thread context of 2932	1344	dekont.pdf.exe	38

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 5 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	dekont.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dekont.pdf.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1344	dekont.pdf.exe
1344	dekont.pdf.exe
1344	dekont.pdf.exe
1344	dekont.pdf.exe
1344	dekont.pdf.exe
1344	dekont.pdf.exe
1344	dekont.pdf.exe
1344	dekont.pdf.exe
1344	dekont.pdf.exe
2676	powershell.exe
2464	powershell.exe
1344	dekont.pdf.exe
2932	dekont.pdf.exe
2932	dekont.pdf.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1344	dekont.pdf.exe
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeDebugPrivilege	2464	powershell.exe
Token: SeDebugPrivilege	2932	dekont.pdf.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 2676	1344	dekont.pdf.exe	28
PID 1344 wrote to memory of 2676	1344	dekont.pdf.exe	28
PID 1344 wrote to memory of 2676	1344	dekont.pdf.exe	28
PID 1344 wrote to memory of 2676	1344	dekont.pdf.exe	28
PID 1344 wrote to memory of 2464	1344	dekont.pdf.exe	30
PID 1344 wrote to memory of 2464	1344	dekont.pdf.exe	30
PID 1344 wrote to memory of 2464	1344	dekont.pdf.exe	30
PID 1344 wrote to memory of 2464	1344	dekont.pdf.exe	30
PID 1344 wrote to memory of 2752	1344	dekont.pdf.exe	32
PID 1344 wrote to memory of 2752	1344	dekont.pdf.exe	32
PID 1344 wrote to memory of 2752	1344	dekont.pdf.exe	32
PID 1344 wrote to memory of 2752	1344	dekont.pdf.exe	32
PID 1344 wrote to memory of 2524	1344	dekont.pdf.exe	34
PID 1344 wrote to memory of 2524	1344	dekont.pdf.exe	34
PID 1344 wrote to memory of 2524	1344	dekont.pdf.exe	34
PID 1344 wrote to memory of 2524	1344	dekont.pdf.exe	34
PID 1344 wrote to memory of 2532	1344	dekont.pdf.exe	35
PID 1344 wrote to memory of 2532	1344	dekont.pdf.exe	35
PID 1344 wrote to memory of 2532	1344	dekont.pdf.exe	35
PID 1344 wrote to memory of 2532	1344	dekont.pdf.exe	35
PID 1344 wrote to memory of 2580	1344	dekont.pdf.exe	36
PID 1344 wrote to memory of 2580	1344	dekont.pdf.exe	36
PID 1344 wrote to memory of 2580	1344	dekont.pdf.exe	36
PID 1344 wrote to memory of 2580	1344	dekont.pdf.exe	36
PID 1344 wrote to memory of 1900	1344	dekont.pdf.exe	37
PID 1344 wrote to memory of 1900	1344	dekont.pdf.exe	37
PID 1344 wrote to memory of 1900	1344	dekont.pdf.exe	37
PID 1344 wrote to memory of 1900	1344	dekont.pdf.exe	37
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38
PID 1344 wrote to memory of 2932	1344	dekont.pdf.exe	38

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont.pdf.exe

C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2676
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LtqNXjPVtQPl.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2464
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LtqNXjPVtQPl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79C2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2752
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  PID:2524
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  PID:2532
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  PID:2580
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  PID:1900
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp79C2.tmp

Filesize
1KB

MD5
2ed5abe5cddb8016f8283c9982fb66c9

SHA1
c24fc41d8904d349b08c9d8881e8ed77d54221ce

SHA256
17d1514eb123aaca73fae2286827a40372ebe47cf83f5397621bfe3861e6ff51

SHA512
50ae0f8becc6dfd511d9300876a4f89378bc4929e4cb8543a87282497bd9956b887871e41dc2b9a11fb830760632bec2ae76f22010c82c7e2e98d948b15b2598

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
0ec6c14a5148e4454e495e786455f99b

SHA1
ffa6a3375694ea14bf98d4171141290af1b46d5d

SHA256
fd1c072e35ee7348795f3bbbd54924b4f9417ab83b2ef52f921f563b054cdeb8

SHA512
5903e8ad70d53362ac1d4009eb8f2fccb035b446d6514161b0307d29e1e82e05b001f49f013f7a239edfe12222d91d76fa945263bed3ec7d22f5c44eb7230130

Download Submit
memory/1344-4-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/1344-31-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/1344-0-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/1344-5-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/1344-6-0x00000000055B0000-0x0000000005618000-memory.dmp

Filesize
416KB

Download
memory/1344-2-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/1344-1-0x00000000001D0000-0x000000000025E000-memory.dmp

Filesize
568KB

Download
memory/1344-3-0x00000000004D0000-0x00000000004E0000-memory.dmp

Filesize
64KB

Download
memory/2932-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-25-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2932-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download