snakekeylogger | 6577f5c5150e1dc818be87c2483db10b3af00effc2faf5c1acd174a8db760001

General

Target

Remittance Advice.exe
Size

351KB
MD5

d110b0f2602558c3d8b88de7cfe037f5
SHA1

5f793d032ab11aca6877ab37df9b4f9c2d681afa
SHA256

6577f5c5150e1dc818be87c2483db10b3af00effc2faf5c1acd174a8db760001
SHA512

ae5a8b3686d68df8bd5bf1ab1c27626d251e119392b0a3b2c40b36b38d2077c3147c4f2e47e9899fe8be9b178d0bd18cda080de06fe007af0245d651f6e2abd9
SSDEEP

6144:N79QdWMg8s6TiYedIEyqS5gSDA8X0w68/lE1nwXvOQNBrrIya/EZD7dU:XsY6Ti7dIEVSOS83b2WQNBvko7m

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.yandex.com
Port:
587
Username:
[email protected]
Password:
chijiokejackson121

C2

https://api.telegram.org/bot5206100572:AAFn3MxBuN0bjQhfY8y1ed9Iwi79LyIe75I/sendMessage?chat_id=2135869667

Signatures

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3744-26-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral2/memory/3744-31-0x0000000005140000-0x0000000005150000-memory.dmp	family_snakekeylogger

Drops startup file 2 IoCs

Processes:

Powershell.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	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 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:

Remittance Advice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance Advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance Advice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance Advice.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

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

Processes:

Remittance Advice.exe

description pid process target process

PID 3480 set thread context of 3744 3480 Remittance Advice.exe Remittance Advice.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Powershell.exeRemittance Advice.exe

pid process

3540 Powershell.exe
3540 Powershell.exe
3744 Remittance Advice.exe
3744 Remittance Advice.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Powershell.exeRemittance Advice.exe

description pid process

Token: SeDebugPrivilege 3540 Powershell.exe
Token: SeDebugPrivilege 3744 Remittance Advice.exe

flow	ioc
19	checkip.dyndns.org

description	pid	process	target process
PID 3480 set thread context of 3744	3480	Remittance Advice.exe	Remittance Advice.exe

pid	process
3540	Powershell.exe
3540	Powershell.exe
3744	Remittance Advice.exe
3744	Remittance Advice.exe

description	pid	process
Token: SeDebugPrivilege	3540	Powershell.exe
Token: SeDebugPrivilege	3744	Remittance Advice.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Remittance Advice.exe

description	pid	process	target process
PID 3480 wrote to memory of 3540	3480	Remittance Advice.exe	Powershell.exe
PID 3480 wrote to memory of 3540	3480	Remittance Advice.exe	Powershell.exe
PID 3480 wrote to memory of 3540	3480	Remittance Advice.exe	Powershell.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe
PID 3480 wrote to memory of 3744	3480	Remittance Advice.exe	Remittance Advice.exe

outlook_office_path 1 IoCs

Processes:

Remittance Advice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance Advice.exe

outlook_win_path 1 IoCs

Processes:

Remittance Advice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance Advice.exe

C:\Users\Admin\AppData\Local\Temp\Remittance Advice.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance Advice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3480

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Remittance Advice.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3540

C:\Users\Admin\AppData\Local\Temp\Remittance Advice.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance Advice.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Remittance Advice.exe.log

Filesize
706B

MD5
9b4d7ccdebef642a9ad493e2c2925952

SHA1
c020c622c215e880c8415fa867cb50210b443ef0

SHA256
e6f068d76bd941b4118225b130db2c70128e77a45dcdbf5cbab0f8a563b867ff

SHA512
8577ecd7597d4b540bc1c6ccc4150eae7443da2e4be1343cc42242714d04dd16e48c3fcaefd95c4a148fe9f14c5b6f3166b752ae20d608676cf6fb48919968e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ep0bncm5.xej.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3480-0-0x0000000000070000-0x00000000000CE000-memory.dmp

Filesize
376KB

Download
memory/3480-2-0x0000000005070000-0x0000000005614000-memory.dmp

Filesize
5.6MB

Download
memory/3480-3-0x0000000004AC0000-0x0000000004B52000-memory.dmp

Filesize
584KB

Download
memory/3480-4-0x0000000004A60000-0x0000000004AB6000-memory.dmp

Filesize
344KB

Download
memory/3480-5-0x0000000004C40000-0x0000000004CDC000-memory.dmp

Filesize
624KB

Download
memory/3480-29-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/3480-1-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/3480-25-0x0000000004BB0000-0x0000000004BBA000-memory.dmp

Filesize
40KB

Download
memory/3480-24-0x0000000004D50000-0x0000000004D60000-memory.dmp

Filesize
64KB

Download
memory/3540-9-0x0000000004EB0000-0x00000000054D8000-memory.dmp

Filesize
6.2MB

Download
memory/3540-36-0x00000000062E0000-0x0000000006302000-memory.dmp

Filesize
136KB

Download
memory/3540-11-0x0000000004D50000-0x0000000004D72000-memory.dmp

Filesize
136KB

Download
memory/3540-13-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/3540-23-0x0000000005730000-0x0000000005A84000-memory.dmp

Filesize
3.3MB

Download
memory/3540-10-0x0000000004870000-0x0000000004880000-memory.dmp

Filesize
64KB

Download
memory/3540-8-0x0000000004870000-0x0000000004880000-memory.dmp

Filesize
64KB

Download
memory/3540-40-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/3540-7-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/3540-6-0x0000000004730000-0x0000000004766000-memory.dmp

Filesize
216KB

Download
memory/3540-12-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download
memory/3540-35-0x0000000006280000-0x000000000629A000-memory.dmp

Filesize
104KB

Download
memory/3540-32-0x0000000005DB0000-0x0000000005DCE000-memory.dmp

Filesize
120KB

Download
memory/3540-33-0x0000000005E40000-0x0000000005E8C000-memory.dmp

Filesize
304KB

Download
memory/3540-34-0x0000000006DA0000-0x0000000006E36000-memory.dmp

Filesize
600KB

Download
memory/3744-31-0x0000000005140000-0x0000000005150000-memory.dmp

Filesize
64KB

Download
memory/3744-30-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/3744-26-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3744-41-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/3744-42-0x0000000005140000-0x0000000005150000-memory.dmp

Filesize
64KB

Download
memory/3744-43-0x0000000006440000-0x0000000006490000-memory.dmp

Filesize
320KB

Download
memory/3744-44-0x0000000006660000-0x0000000006822000-memory.dmp

Filesize
1.8MB

Download
memory/3744-45-0x00000000065E0000-0x00000000065EA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads