snakekeylogger | 552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa

Analysis

max time kernel
146s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 01:08

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General

Target

552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe
Size

1.1MB
MD5

65e2a9349c75ee34280992ed2e7aa548
SHA1

d57c9017e2cbdb589c2698d899ee7f9063e35142
SHA256

552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa
SHA512

c9e75dc48d42b67cada4b0e91123439c39d1609f241c40e39b0e7461befc1f9016e1c0e13f4046f9c3556284e5ff7befbd810c1bdf48fa7744fe510678c07796
SSDEEP

12288:7fioXCFj7X9WyhW9f1hL5JyqPY3dhaGIUZo6Pku:eoX4tWb1Jy/hvhK6Pt

Score

10^/10

snakekeylogger collection keylogger 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 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers
Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/3672-3-0x000001A230740000-0x000001A2307BA000-memory.dmp INDICATOR_EXE_Packed_KoiVM
Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Detects executables with potential process hoocking 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_DotNetProcHook

resource	yara_rule
behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

resource	yara_rule
behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

resource	yara_rule
behavioral2/memory/3672-3-0x000001A230740000-0x000001A2307BA000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

resource	yara_rule
behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

resource	yara_rule
behavioral2/memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.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

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

Processes:

552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe

description pid process target process

PID 3672 set thread context of 3100 3672 552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe CasPol.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

CasPol.exe

pid process

3100 CasPol.exe
3100 CasPol.exe
3100 CasPol.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CasPol.exe

description pid process

Token: SeDebugPrivilege 3100 CasPol.exe

flow	ioc
24	checkip.dyndns.org

description	pid	process	target process
PID 3672 set thread context of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe

pid	process
3100	CasPol.exe
3100	CasPol.exe
3100	CasPol.exe

description	pid	process
Token: SeDebugPrivilege	3100	CasPol.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe

description	pid	process	target process
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 3100	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 4936	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 4936	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe
PID 3672 wrote to memory of 4936	3672	552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe	CasPol.exe

outlook_office_path 1 IoCs

Processes:

CasPol.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

outlook_win_path 1 IoCs

Processes:

CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe
"C:\Users\Admin\AppData\Local\Temp\552e61ad619a32a252b5a7e52dfee9aff417040e147e34bf0111e3f89dc433aa.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3672

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3100

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
PID:4936

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4008 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:1768

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3100-8-0x0000000005670000-0x000000000570C000-memory.dmp

Filesize
624KB

Download
memory/3100-11-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3100-15-0x0000000006A10000-0x0000000006A1A000-memory.dmp

Filesize
40KB

Download
memory/3100-14-0x0000000006A70000-0x0000000006B02000-memory.dmp

Filesize
584KB

Download
memory/3100-7-0x0000000005C20000-0x00000000061C4000-memory.dmp

Filesize
5.6MB

Download
memory/3100-5-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/3100-13-0x0000000006BA0000-0x0000000006D62000-memory.dmp

Filesize
1.8MB

Download
memory/3100-12-0x0000000006980000-0x00000000069D0000-memory.dmp

Filesize
320KB

Download
memory/3100-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3100-9-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3100-10-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/3672-0-0x00007FFC5B750000-0x00007FFC5B7EE000-memory.dmp

Filesize
632KB

Download
memory/3672-6-0x00007FFC5B750000-0x00007FFC5B7EE000-memory.dmp

Filesize
632KB

Download
memory/3672-1-0x000001A22EA90000-0x000001A22EA98000-memory.dmp

Filesize
32KB

Download
memory/3672-3-0x000001A230740000-0x000001A2307BA000-memory.dmp

Filesize
488KB

Download
memory/3672-2-0x00007FFC5B750000-0x00007FFC5B7EE000-memory.dmp

Filesize
632KB

Download