snakekeylogger | 1a6df26ab226cce53ed57cf4d4a46afcacfed48d181ecf3cefc1547a86fa514e

General

Target

SU RECEIPTS.exe
Size

45KB
MD5

8c1ecfec742a15ecea1270341f6fc233
SHA1

cad6e89bb9a46723d5c065118d84f8fa2d733b5b
SHA256

1a6df26ab226cce53ed57cf4d4a46afcacfed48d181ecf3cefc1547a86fa514e
SHA512

1cea0261f65f4faf58b9f6c06942f39eb898b0fc2a31719de3aa6be7842170d1cd69efc0c66d9406e076b38923e4d065a2afa50e1943f60ea9af5ad5a1800f74
SSDEEP

768:uyJEWTx+/DsoQpYZluRhLLZKT+LQEPKfrs4nMWp/YI4XuMI/t6nOa6Tyo:dnpBX7LQnjsL9o1t6Oa/o

Score

10^/10

snakekeylogger collection keylogger persistence spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6665362842:AAG0pFaR7HRKKztCR5GZinjteZ-4ePeXCWM/sendMessage?chat_id=1467583453

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/2580-48-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2580-50-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2580-54-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2580-56-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2580-59-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2580-61-0x0000000000640000-0x0000000000680000-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:

SU RECEIPTS.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SU RECEIPTS.exe
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SU RECEIPTS.exe
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SU RECEIPTS.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

SU RECEIPTS.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\Avukehngtk = "C:\\Users\\Admin\\AppData\\Roaming\\Avukehngtk.exe"	SU RECEIPTS.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:

SU RECEIPTS.exe

description pid process target process

PID 1668 set thread context of 2580 1668 SU RECEIPTS.exe SU RECEIPTS.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

SU RECEIPTS.exe

pid process

2580 SU RECEIPTS.exe
2580 SU RECEIPTS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SU RECEIPTS.exeSU RECEIPTS.exe

description pid process

Token: SeDebugPrivilege 1668 SU RECEIPTS.exe
Token: SeDebugPrivilege 2580 SU RECEIPTS.exe

flow	ioc
6	checkip.dyndns.org

description	pid	process	target process
PID 1668 set thread context of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe

pid	process
2580	SU RECEIPTS.exe
2580	SU RECEIPTS.exe

description	pid	process
Token: SeDebugPrivilege	1668	SU RECEIPTS.exe
Token: SeDebugPrivilege	2580	SU RECEIPTS.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

SU RECEIPTS.exe

description	pid	process	target process
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe
PID 1668 wrote to memory of 2580	1668	SU RECEIPTS.exe	SU RECEIPTS.exe

outlook_office_path 1 IoCs

Processes:

SU RECEIPTS.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SU RECEIPTS.exe

outlook_win_path 1 IoCs

Processes:

SU RECEIPTS.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SU RECEIPTS.exe

C:\Users\Admin\AppData\Local\Temp\SU RECEIPTS.exe
"C:\Users\Admin\AppData\Local\Temp\SU RECEIPTS.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668

C:\Users\Admin\AppData\Local\Temp\SU RECEIPTS.exe
"C:\Users\Admin\AppData\Local\Temp\SU RECEIPTS.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2580

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\CabC812.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarC853.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
memory/1668-58-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/1668-1-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/1668-0-0x0000000001030000-0x0000000001040000-memory.dmp

Filesize
64KB

Download
memory/1668-37-0x0000000000C20000-0x0000000000C70000-memory.dmp

Filesize
320KB

Download
memory/1668-38-0x0000000005050000-0x0000000005088000-memory.dmp

Filesize
224KB

Download
memory/1668-39-0x00000000052B0000-0x00000000052E6000-memory.dmp

Filesize
216KB

Download
memory/1668-40-0x00000000060A0000-0x00000000060EC000-memory.dmp

Filesize
304KB

Download
memory/1668-41-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/1668-42-0x0000000000F60000-0x0000000000FA0000-memory.dmp

Filesize
256KB

Download
memory/1668-2-0x0000000000F60000-0x0000000000FA0000-memory.dmp

Filesize
256KB

Download
memory/2580-63-0x0000000000640000-0x0000000000680000-memory.dmp

Filesize
256KB

Download
memory/2580-44-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2580-50-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2580-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2580-54-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2580-56-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2580-48-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2580-59-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2580-60-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/2580-61-0x0000000000640000-0x0000000000680000-memory.dmp

Filesize
256KB

Download
memory/2580-62-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/2580-46-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads