snakekeylogger | 9f02fe2f8aa637ab69150e3d07bae097af4227b14d4c9af06f11f8d535c5bb95

General

Target

Remittance.exe
Size

577KB
MD5

cb1f7b7823d8890e58eb02ed64ee9616
SHA1

9f1e933512f620eb9d9d1c85a1fff80f8d0c8570
SHA256

9f02fe2f8aa637ab69150e3d07bae097af4227b14d4c9af06f11f8d535c5bb95
SHA512

302fb7a7f22007fe72675b7505e36a4d9af73213d2149da92e609107b961792879abfbd44dae3cc9e5d51ef2daf8af4ac859aac0466b38ccc6928d12460c6ef9
SSDEEP

12288:ZbRKjP7ne5ewppROaZhRGJH54prTtmPhxo3////rK///I/////qvwtE2LXPgX:DKjP7e5ewpaKhSHWK6////G///I////I

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
webmail.active.by
Port:
25
Username:
[email protected]
Password:
geecf683:m
Email To:
[email protected]

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/3480-7-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger 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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	checkip.dyndns.org
16	reallyfreegeoip.org
17	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1396 set thread context of 3480	1396	Remittance.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remittance.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remittance.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3480	Remittance.exe
3480	Remittance.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3480	Remittance.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82
PID 1396 wrote to memory of 3480	1396	Remittance.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance.exe

C:\Users\Admin\AppData\Local\Temp\Remittance.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Users\Admin\AppData\Local\Temp\Remittance.exe
  "C:\Users\Admin\AppData\Local\Temp\Remittance.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
706B

MD5
2ef5ef69dadb8865b3d5b58c956077b8

SHA1
af2d869bac00685c745652bbd8b3fe82829a8998

SHA256
363502eb2a4e53ba02d2d85412b901fcf8e06de221736bdffa949799ef3d21e3

SHA512
66d4db5dd17d88e1d54ea0df3a7211a503dc4355de701259cefccc9f2e4e3ced9534b700099ffbb089a5a3acb082011c80b61801aa14aff76b379ce8f90d4fd3

Download Submit
memory/1396-12-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/1396-1-0x0000000000310000-0x00000000003A6000-memory.dmp

Filesize
600KB

Download
memory/1396-2-0x0000000004D40000-0x0000000004D96000-memory.dmp

Filesize
344KB

Download
memory/1396-3-0x0000000005360000-0x0000000005904000-memory.dmp

Filesize
5.6MB

Download
memory/1396-4-0x0000000004E90000-0x0000000004F22000-memory.dmp

Filesize
584KB

Download
memory/1396-5-0x0000000004FD0000-0x000000000506C000-memory.dmp

Filesize
624KB

Download
memory/1396-6-0x0000000004E40000-0x0000000004E48000-memory.dmp

Filesize
32KB

Download
memory/1396-8-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/1396-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/3480-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3480-11-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/3480-13-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/3480-14-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/3480-15-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/3480-16-0x0000000006C00000-0x0000000006C50000-memory.dmp

Filesize
320KB

Download
memory/3480-17-0x0000000006E20000-0x0000000006FE2000-memory.dmp

Filesize
1.8MB

Download
memory/3480-18-0x0000000006C80000-0x0000000006C8A000-memory.dmp

Filesize
40KB

Download

Analysis

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