snakekeylogger | 80a8ad00d2b5fdeed575563e125913c7f5805d4fde1c4aa19a5e11336c3611d1

General

Target

Halkbank,doc.exe
Size

572KB
MD5

83e790cb92a1c055ea9a72c6ebd1db4b
SHA1

ddc4cc3521fae0da391fe1936ec4692ab3c25adb
SHA256

9b657f589d4329bcc5c845a20fe2a145d8c0dac5cf2987c1ec57eb42d0a5f826
SHA512

86f8a3cffedc9a55d1ae8ae5f2482c3d951a790fd45a5229244bd9020b29e2ed5de99bf77f0f8cda9c10cbc74e2dc9f0ba4b9f527ba0f811eda5265bee007180
SSDEEP

12288:xAaSSd3s8Vp+TH1sZ7HeWFB6nKHBjMvklyzSigeyiHMJVLtps7s:mJS3VMK1HFeKVtlyzz3nWVOs

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.irw.com.br
Port:
25
Username:
sales11@irw.com.br
Password:
Everest10@
Email To:
nonyekeylogger@gmail.com

Signatures

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

Snake Keylogger payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1584-62-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1584-64-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1584-66-0x000000000042029E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1584-65-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1584-70-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/1584-68-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Halkbank,doc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc.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:

Halkbank,doc.exe

description pid process target process

PID 1488 set thread context of 1584 1488 Halkbank,doc.exe Halkbank,doc.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Halkbank,doc.exeHalkbank,doc.exe

pid process

1488 Halkbank,doc.exe
1584 Halkbank,doc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Halkbank,doc.exeHalkbank,doc.exe

description pid process

Token: SeDebugPrivilege 1488 Halkbank,doc.exe
Token: SeDebugPrivilege 1584 Halkbank,doc.exe

flow	ioc
4	checkip.dyndns.org

description	pid	process	target process
PID 1488 set thread context of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe

pid	process
1488	Halkbank,doc.exe
1584	Halkbank,doc.exe

description	pid	process
Token: SeDebugPrivilege	1488	Halkbank,doc.exe
Token: SeDebugPrivilege	1584	Halkbank,doc.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Halkbank,doc.exe

description	pid	process	target process
PID 1488 wrote to memory of 1708	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1708	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1708	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1708	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe
PID 1488 wrote to memory of 1584	1488	Halkbank,doc.exe	Halkbank,doc.exe

outlook_office_path 1 IoCs

Processes:

Halkbank,doc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc.exe

outlook_win_path 1 IoCs

Processes:

Halkbank,doc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank,doc.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,doc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488

C:\Users\Admin\AppData\Local\Temp\Halkbank,doc.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,doc.exe"
2⤵
PID:1708

C:\Users\Admin\AppData\Local\Temp\Halkbank,doc.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,doc.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1584

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1488-54-0x0000000000D00000-0x0000000000D96000-memory.dmp

Filesize
600KB

Download
memory/1488-55-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

Filesize
8KB

Download
memory/1488-56-0x0000000000430000-0x0000000000446000-memory.dmp

Filesize
88KB

Download
memory/1488-57-0x0000000004FD0000-0x0000000005054000-memory.dmp

Filesize
528KB

Download
memory/1488-58-0x0000000000B40000-0x0000000000B66000-memory.dmp

Filesize
152KB

Download
memory/1584-59-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1584-60-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1584-62-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1584-64-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1584-66-0x000000000042029E-mapping.dmp

Download
memory/1584-65-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1584-70-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1584-68-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads