snakekeylogger | fddb5c07d9ae4295bec096fe40d29b14c27be92760e586ec99ca43a43fe16244

General

Target

VakifBankKrediKartiHesapOzeti.exe
Size

21KB
MD5

7c680b856965144ada69a5afcb031813
SHA1

01967f1e2da8cdf027d42f4fa6f8d2214c7e0a49
SHA256

fddb5c07d9ae4295bec096fe40d29b14c27be92760e586ec99ca43a43fe16244
SHA512

8f742c86ad50e7e59149957b6dc57a16c0714bc45d26a8e741cf0d4fb30afac710365bf88546654b81f055927f6a34802a5ce79b44da47fc1c01f1123f8a8fa1
SSDEEP

384:Is8eRdyRZZFFYPd8yx3IQGrhowkp48fNZ1RzWkET7AsbRO3gCR/1:j8id3T265p48fN/EbUQCRd

Score

10^/10

snakekeylogger collection keylogger persistence spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6350529534:AAEbFW9VBWTKQfN1Y3K_5RJARCtOn1UqK8o/sendMessage?chat_id=1467583453

Signatures

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

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1704-46-0x0000000140000000-0x0000000140022000-memory.dmp	family_snakekeylogger
behavioral1/memory/1704-49-0x0000000140000000-0x0000000140022000-memory.dmp	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 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:

VakifBankKrediKartiHesapOzeti.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VakifBankKrediKartiHesapOzeti.exe
Key opened	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VakifBankKrediKartiHesapOzeti.exe
Key opened	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VakifBankKrediKartiHesapOzeti.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

VakifBankKrediKartiHesapOzeti.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows\CurrentVersion\Run\Xyfdgz = "C:\\Users\\Admin\\AppData\\Roaming\\Xyfdgz.exe"	VakifBankKrediKartiHesapOzeti.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

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

Processes:

VakifBankKrediKartiHesapOzeti.exe

description pid process target process

PID 1584 set thread context of 1704 1584 VakifBankKrediKartiHesapOzeti.exe VakifBankKrediKartiHesapOzeti.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

VakifBankKrediKartiHesapOzeti.exe

pid process

1704 VakifBankKrediKartiHesapOzeti.exe
1704 VakifBankKrediKartiHesapOzeti.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

VakifBankKrediKartiHesapOzeti.exeVakifBankKrediKartiHesapOzeti.exe

description pid process

Token: SeDebugPrivilege 1584 VakifBankKrediKartiHesapOzeti.exe
Token: SeDebugPrivilege 1704 VakifBankKrediKartiHesapOzeti.exe

flow	ioc
6	checkip.dyndns.org

description	pid	process	target process
PID 1584 set thread context of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe

pid	process
1704	VakifBankKrediKartiHesapOzeti.exe
1704	VakifBankKrediKartiHesapOzeti.exe

description	pid	process
Token: SeDebugPrivilege	1584	VakifBankKrediKartiHesapOzeti.exe
Token: SeDebugPrivilege	1704	VakifBankKrediKartiHesapOzeti.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

VakifBankKrediKartiHesapOzeti.exe

description	pid	process	target process
PID 1584 wrote to memory of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe
PID 1584 wrote to memory of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe
PID 1584 wrote to memory of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe
PID 1584 wrote to memory of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe
PID 1584 wrote to memory of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe
PID 1584 wrote to memory of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe
PID 1584 wrote to memory of 1704	1584	VakifBankKrediKartiHesapOzeti.exe	VakifBankKrediKartiHesapOzeti.exe

outlook_office_path 1 IoCs

Processes:

VakifBankKrediKartiHesapOzeti.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VakifBankKrediKartiHesapOzeti.exe

outlook_win_path 1 IoCs

Processes:

VakifBankKrediKartiHesapOzeti.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VakifBankKrediKartiHesapOzeti.exe

C:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exe
"C:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1584

C:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exe
C:\Users\Admin\AppData\Local\Temp\VakifBankKrediKartiHesapOzeti.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabE5FE.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarE65E.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
memory/1584-42-0x00000000025A0000-0x00000000025EC000-memory.dmp

Filesize
304KB

Download
memory/1584-52-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/1584-1-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/1584-37-0x00000000023B0000-0x0000000002400000-memory.dmp

Filesize
320KB

Download
memory/1584-38-0x0000000002480000-0x00000000024B8000-memory.dmp

Filesize
224KB

Download
memory/1584-39-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/1584-40-0x0000000002520000-0x00000000025A0000-memory.dmp

Filesize
512KB

Download
memory/1584-41-0x00000000024C0000-0x00000000024F6000-memory.dmp

Filesize
216KB

Download
memory/1584-0-0x0000000000EA0000-0x0000000000EAC000-memory.dmp

Filesize
48KB

Download
memory/1584-2-0x0000000002520000-0x00000000025A0000-memory.dmp

Filesize
512KB

Download
memory/1704-44-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1704-46-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1704-47-0x000007FFFFFDB000-0x000007FFFFFDC000-memory.dmp

Filesize
4KB

Download
memory/1704-49-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1704-45-0x0000000140000000-0x0000000140022000-memory.dmp

Filesize
136KB

Download
memory/1704-53-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/1704-54-0x000000001BF10000-0x000000001BF90000-memory.dmp

Filesize
512KB

Download
memory/1704-55-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads