snakekeylogger | a163d18a93ea4bee62762da2d1dfc7d0a2644428fc868fabcb4347cbcf17cc62

Analysis

max time kernel
119s
max time network
129s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 02:17

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General

Target

LETTER OF AUTHORIZATION.exe
Size

482KB
MD5

bfc623937cdfb8cd4090cdea7d6f4425
SHA1

1bfff971e1f21196ef80b24041ae0d962ce8decd
SHA256

a163d18a93ea4bee62762da2d1dfc7d0a2644428fc868fabcb4347cbcf17cc62
SHA512

e3fbf69edcfc9c0051291b13349b9ef6db64a070d07655158eaf71b9beb789bc8f985d2dfc77ca1585b535a3a79ce473d16267735c5864b4d2cd48f29f03300c
SSDEEP

12288:wXuBtAjdcuDYjaxoerJuBIT4ZASlwoUIKeik/6LOeq:mufAjd0VeroBIcJ+26LJ

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
valleycountysar.org
Port:
26
Username:
[email protected]
Password:
fY,FLoadtsiF

Signatures

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

Snake Keylogger payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1796-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1796-8-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1796-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1796-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1796-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

LETTER OF AUTHORIZATION.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LETTER OF AUTHORIZATION.exe
Key opened	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LETTER OF AUTHORIZATION.exe
Key opened	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LETTER OF AUTHORIZATION.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.

Processes:

flow ioc

4 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description pid process target process

PID 2124 set thread context of 1796 2124 LETTER OF AUTHORIZATION.exe LETTER OF AUTHORIZATION.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

pid process

1796 LETTER OF AUTHORIZATION.exe
1796 LETTER OF AUTHORIZATION.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description pid process

Token: SeDebugPrivilege 1796 LETTER OF AUTHORIZATION.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 2124 set thread context of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe

pid	process
1796	LETTER OF AUTHORIZATION.exe
1796	LETTER OF AUTHORIZATION.exe

description	pid	process
Token: SeDebugPrivilege	1796	LETTER OF AUTHORIZATION.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description	pid	process	target process
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe
PID 2124 wrote to memory of 1796	2124	LETTER OF AUTHORIZATION.exe	LETTER OF AUTHORIZATION.exe

outlook_office_path 1 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LETTER OF AUTHORIZATION.exe

outlook_win_path 1 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LETTER OF AUTHORIZATION.exe

C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe
"C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2124

C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe
"C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1796

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1796-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1796-16-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1796-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1796-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1796-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1796-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1796-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1796-20-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-19-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-17-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2124-0-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Filesize
4KB

Download
memory/2124-1-0x0000000001090000-0x000000000110E000-memory.dmp

Filesize
504KB

Download
memory/2124-3-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/2124-18-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/2124-2-0x0000000000460000-0x00000000004B4000-memory.dmp

Filesize
336KB

Download
memory/2124-4-0x0000000000500000-0x0000000000508000-memory.dmp

Filesize
32KB

Download