snakekeylogger | 235feecbf39c506144e406ee52d764d830e5124d113280a5e339bf3bdee978a5

Analysis

max time kernel
31s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 14:17

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General

Target

LETTER OF AUTHORIZATION.exe
Size

3.0MB
MD5

57cb0d1fbbe7e57e906d9bec624ff50f
SHA1

d8eeb1c8e4530d619c7a5927fec5fcc892e0b24f
SHA256

235feecbf39c506144e406ee52d764d830e5124d113280a5e339bf3bdee978a5
SHA512

7d0be14e10f4174648cb597b9f8b32883088b9fed59cd4812339cdb379746e49b58dfb357d733fcb9b73c725451b64f6588e328518091b6311ef38c1dc41d886
SSDEEP

12288:RaoerDVWSJRvp61xGNoQOgR4FeGQ5fzF2M9PbxyWnnMRGIliKj:RinVl1Yeo0R4FeHX2qwRFj

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/1600-4-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger

resource	yara_rule
behavioral2/memory/1600-4-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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

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

Processes:

LETTER OF AUTHORIZATION.exe

description pid process target process

PID 1092 set thread context of 1600 1092 LETTER OF AUTHORIZATION.exe CasPol.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

CasPol.exe

pid process

1600 CasPol.exe
1600 CasPol.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CasPol.exe

description pid process

Token: SeDebugPrivilege 1600 CasPol.exe

flow	ioc
8	checkip.dyndns.org

description	pid	process	target process
PID 1092 set thread context of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe

pid	process
1600	CasPol.exe
1600	CasPol.exe

description	pid	process
Token: SeDebugPrivilege	1600	CasPol.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

LETTER OF AUTHORIZATION.exe

description	pid	process	target process
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 1600	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 5096	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 5096	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe
PID 1092 wrote to memory of 5096	1092	LETTER OF AUTHORIZATION.exe	CasPol.exe

outlook_office_path 1 IoCs

Processes:

CasPol.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.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:1092

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:1600

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
PID:5096

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 --field-trial-handle=4156,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=4172 /prefetch:8
1⤵
PID:4912

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/1092-1-0x00007FFCA8693000-0x00007FFCA8695000-memory.dmp

Filesize
8KB

Download
memory/1092-0-0x0000025859840000-0x0000025859848000-memory.dmp

Filesize
32KB

Download
memory/1092-2-0x000002585B430000-0x000002585B4AA000-memory.dmp

Filesize
488KB

Download
memory/1092-3-0x00007FFCA8690000-0x00007FFCA9151000-memory.dmp

Filesize
10.8MB

Download
memory/1092-9-0x00007FFCA8690000-0x00007FFCA9151000-memory.dmp

Filesize
10.8MB

Download
memory/1600-8-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/1600-6-0x0000000005A50000-0x0000000005FF4000-memory.dmp

Filesize
5.6MB

Download
memory/1600-7-0x0000000005390000-0x000000000542C000-memory.dmp

Filesize
624KB

Download
memory/1600-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1600-5-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/1600-10-0x00000000065D0000-0x0000000006620000-memory.dmp

Filesize
320KB

Download
memory/1600-12-0x00000000066C0000-0x0000000006752000-memory.dmp

Filesize
584KB

Download
memory/1600-13-0x0000000006630000-0x000000000663A000-memory.dmp

Filesize
40KB

Download
memory/1600-11-0x00000000067F0000-0x00000000069B2000-memory.dmp

Filesize
1.8MB

Download
memory/1600-14-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/1600-15-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download