snakekeylogger | a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d

Analysis

max time kernel
121s
max time network
139s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 01:15

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General

Target

a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe
Size

1.9MB
MD5

2dcf1e9b4ca5afa19d7473f108aea256
SHA1

d2f554d2699fcddf1c2d65cc05739916aa0dae62
SHA256

a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d
SHA512

be82afc240c397e66742a019af1fe6464100eda77bb5b4bfb6e92856ae51b866554e51b500786902d79737ed1a4e2e02b845b034ec9d2abfd3ff6d9526587cde
SSDEEP

12288:7EC0huBtyjOQyaZyk3x2PulNQ5EcxhyBIpNOlV3d:AC4u/2x72PV5LxhclV3d

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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2976-8-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-10-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-14-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-12-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2976-8-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2976-7-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2976-10-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2976-14-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2976-12-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/2196-2-0x00000000004E0000-0x000000000055A000-memory.dmp INDICATOR_EXE_Packed_KoiVM

resource	yara_rule
behavioral1/memory/2196-2-0x00000000004E0000-0x000000000055A000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2976-8-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2976-7-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2976-10-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2976-14-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2976-12-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables with potential process hoocking 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2976-8-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2976-7-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2976-10-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2976-14-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
behavioral1/memory/2976-12-0x0000000000400000-0x0000000000426000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

regsvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.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:

a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe

description pid process target process

PID 2196 set thread context of 2976 2196 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe regsvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvcs.exe

pid process

2976 regsvcs.exe
2976 regsvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regsvcs.exe

description pid process

Token: SeDebugPrivilege 2976 regsvcs.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 2196 set thread context of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe

pid	process
2976	regsvcs.exe
2976	regsvcs.exe

description	pid	process
Token: SeDebugPrivilege	2976	regsvcs.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe

description	pid	process	target process
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 2976	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	regsvcs.exe
PID 2196 wrote to memory of 1880	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	WerFault.exe
PID 2196 wrote to memory of 1880	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	WerFault.exe
PID 2196 wrote to memory of 1880	2196	a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

regsvcs.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 regsvcs.exe

outlook_win_path 1 IoCs

Processes:

regsvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe

C:\Users\Admin\AppData\Local\Temp\a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe
"C:\Users\Admin\AppData\Local\Temp\a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2196

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2976

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2196 -s 620
2⤵
PID:1880

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/2196-0-0x000007FEF5B43000-0x000007FEF5B44000-memory.dmp

Filesize
4KB

Download
memory/2196-1-0x0000000001200000-0x0000000001208000-memory.dmp

Filesize
32KB

Download
memory/2196-2-0x00000000004E0000-0x000000000055A000-memory.dmp

Filesize
488KB

Download
memory/2196-3-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/2196-18-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/2196-17-0x000007FEF5B43000-0x000007FEF5B44000-memory.dmp

Filesize
4KB

Download
memory/2976-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2976-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2976-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2976-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2976-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2976-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2976-15-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/2976-16-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2976-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2976-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2976-19-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/2976-20-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download