snakekeylogger | e8a7167209bba23c62eb8a4a2fff38dbed864cd9ef6ad0ec597ae9ac72670735

Analysis

max time kernel
130s
max time network
139s
platform
windows10-1703_x64
resource
win10-20240611-ja
resource tags

arch:x64arch:x86image:win10-20240611-jalocale:ja-jpos:windows10-1703-x64systemwindows
submitted
16-10-2024 08:06

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General

Target

見積依頼.exe
Size

548KB
MD5

559c32c60b5460f46e1387ea8ca0b569
SHA1

b25cca8543bb808a12d67fa066def9deb22fb136
SHA256

53cfcbbe0d8140f927296fad6ff4870d79c58a74b7a1724661450d952e8b0787
SHA512

0ea5f5674be8e136d918c100ceb2155b14e2c7b122b1ff9ca469fda72ffbf3ca1e5e48f67e1f6c9112cd9c658989f7758a061a6f8571bd038be9d3ca9e24a30f
SSDEEP

12288:6/RUQRCJa5wUjm7YlEMUqJDDWfuBzvuUbJPEsTu:qRRCOwUXlEBqJDLBrLtfTu

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 1 IoCs

resource	yara_rule
behavioral1/memory/2148-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4800	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-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	見積依頼.exe
Key opened	\REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	見積依頼.exe
Key opened	\REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	見積依頼.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 4188 set thread context of 2148	4188	見積依頼.exe	75

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	見積依頼.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	見積依頼.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4188	見積依頼.exe
4188	見積依頼.exe
4188	見積依頼.exe
4188	見積依頼.exe
2148	見積依頼.exe
4800	powershell.exe
4800	powershell.exe
4800	powershell.exe
2148	見積依頼.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4188	見積依頼.exe
Token: SeDebugPrivilege	2148	見積依頼.exe
Token: SeDebugPrivilege	4800	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4188 wrote to memory of 4800	4188	見積依頼.exe	72
PID 4188 wrote to memory of 4800	4188	見積依頼.exe	72
PID 4188 wrote to memory of 4800	4188	見積依頼.exe	72
PID 4188 wrote to memory of 416	4188	見積依頼.exe	73
PID 4188 wrote to memory of 416	4188	見積依頼.exe	73
PID 4188 wrote to memory of 416	4188	見積依頼.exe	73
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75
PID 4188 wrote to memory of 2148	4188	見積依頼.exe	75

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	見積依頼.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	見積依頼.exe

C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
"C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4188
- 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\見積依頼.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4800
- C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
  "C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
  2⤵
  PID:416
- C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
  "C:\Users\Admin\AppData\Local\Temp\見積依頼.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:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\見積依頼.exe.log

Filesize
1KB

MD5
2a17db05dec8a8b3535b26f47c79e9db

SHA1
88c2c5949ea9b5d6390d6aff7a94c65dfc165819

SHA256
cd705553521a51686a531b2cc3259d3d7cbfbfe03b26cfc02959d1baf5fc149c

SHA512
e5a9f37ed579e6e6ec9e68aac3ad7e38c4aaadd3642345119aa67563ae6e7dd52fa4a66101c443f52452a1eed5ffce635e1c8ffde19f9d7b2e218e43cb806093

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jdpsqurv.vtj.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/2148-266-0x00000000065A0000-0x00000000065B4000-memory.dmp

Filesize
80KB

Download
memory/2148-267-0x0000000006960000-0x0000000006B22000-memory.dmp

Filesize
1.8MB

Download
memory/2148-268-0x0000000073270000-0x000000007395E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-23-0x0000000073270000-0x000000007395E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-276-0x0000000073270000-0x000000007395E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-18-0x0000000073270000-0x000000007395E000-memory.dmp

Filesize
6.9MB

Download
memory/2148-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4188-12-0x0000000008C30000-0x0000000008C98000-memory.dmp

Filesize
416KB

Download
memory/4188-7-0x0000000006740000-0x00000000067AC000-memory.dmp

Filesize
432KB

Download
memory/4188-11-0x0000000006C40000-0x0000000006C52000-memory.dmp

Filesize
72KB

Download
memory/4188-9-0x000000007327E000-0x000000007327F000-memory.dmp

Filesize
4KB

Download
memory/4188-13-0x000000000B450000-0x000000000B4EC000-memory.dmp

Filesize
624KB

Download
memory/4188-14-0x000000000B600000-0x000000000B70E000-memory.dmp

Filesize
1.1MB

Download
memory/4188-8-0x0000000006810000-0x000000000681A000-memory.dmp

Filesize
40KB

Download
memory/4188-10-0x0000000073270000-0x000000007395E000-memory.dmp

Filesize
6.9MB

Download
memory/4188-6-0x0000000006240000-0x0000000006590000-memory.dmp

Filesize
3.3MB

Download
memory/4188-19-0x0000000073270000-0x000000007395E000-memory.dmp

Filesize
6.9MB

Download
memory/4188-5-0x0000000073270000-0x000000007395E000-memory.dmp

Filesize
6.9MB

Download
memory/4188-4-0x0000000005A30000-0x0000000005ADA000-memory.dmp

Filesize
680KB

Download
memory/4188-3-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/4188-0-0x000000007327E000-0x000000007327F000-memory.dmp

Filesize
4KB

Download
memory/4188-2-0x0000000005D40000-0x000000000623E000-memory.dmp

Filesize
5.0MB

Download
memory/4188-1-0x0000000000F60000-0x0000000000FEE000-memory.dmp

Filesize
568KB

Download
memory/4800-25-0x00000000068F0000-0x0000000006982000-memory.dmp

Filesize
584KB

Download
memory/4800-29-0x0000000006BE0000-0x0000000006BF0000-memory.dmp

Filesize
64KB

Download
memory/4800-30-0x0000000007510000-0x0000000007860000-memory.dmp

Filesize
3.3MB

Download
memory/4800-31-0x00000000074D0000-0x00000000074EC000-memory.dmp

Filesize
112KB

Download
memory/4800-32-0x0000000007A80000-0x0000000007ACB000-memory.dmp

Filesize
300KB

Download
memory/4800-33-0x0000000007DB0000-0x0000000007E26000-memory.dmp

Filesize
472KB

Download
memory/4800-28-0x0000000007350000-0x00000000073B6000-memory.dmp

Filesize
408KB

Download
memory/4800-50-0x0000000008E60000-0x0000000008E93000-memory.dmp

Filesize
204KB

Download
memory/4800-51-0x000000006FAC0000-0x000000006FB0B000-memory.dmp

Filesize
300KB

Download
memory/4800-52-0x0000000008E20000-0x0000000008E3E000-memory.dmp

Filesize
120KB

Download
memory/4800-57-0x0000000008F30000-0x0000000008FD5000-memory.dmp

Filesize
660KB

Download
memory/4800-58-0x00000000090B0000-0x0000000009100000-memory.dmp

Filesize
320KB

Download
memory/4800-59-0x00000000091A0000-0x0000000009234000-memory.dmp

Filesize
592KB

Download
memory/4800-252-0x0000000007EA0000-0x0000000007EBA000-memory.dmp

Filesize
104KB

Download
memory/4800-257-0x0000000007E90000-0x0000000007E98000-memory.dmp

Filesize
32KB

Download
memory/4800-27-0x0000000006C30000-0x0000000006C96000-memory.dmp

Filesize
408KB

Download
memory/4800-26-0x0000000006B90000-0x0000000006BB2000-memory.dmp

Filesize
136KB

Download
memory/4800-24-0x0000000006CB0000-0x00000000072D8000-memory.dmp

Filesize
6.2MB

Download
memory/4800-22-0x0000000000C30000-0x0000000000C66000-memory.dmp

Filesize
216KB

Download