snakekeylogger | a81d0416627292e99a85890bfec8ccb7cded9d59c48e106e0bd7e0970dc0e007

General

Target

dekont01.pdf.exe
Size

45KB
MD5

9fe90352b5568c0e6dfcb13b3ee42d11
SHA1

a401b5d5e6cbbffbef790671e2b23a12dbdf9b11
SHA256

a81d0416627292e99a85890bfec8ccb7cded9d59c48e106e0bd7e0970dc0e007
SHA512

aba5aeb0037aaa89d50ece38b8000fe4e697e7d3cbed0a86acd241afe3e8b7b0076c61f18fd57a482a21ff72d314c43b0028043393d35138a2798ccab04023ad
SSDEEP

768:qttX9DMsY7obZMe/H4RBtA3rs4nMWp/YI4XuMI/t6nOa6Tyo:8YUPEfA7sL9o1t6Oa/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 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2976-46-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-47-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-50-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-52-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-55-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-57-0x00000000049B0000-0x00000000049F0000-memory.dmp	family_snakekeylogger
behavioral1/memory/2976-59-0x00000000049B0000-0x00000000049F0000-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:

dekont01.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont01.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont01.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont01.pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

dekont01.pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Run\mmmmmmmmmm = "C:\\Users\\Admin\\AppData\\Roaming\\mmmmmmmmmm.exe"	dekont01.pdf.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:

dekont01.pdf.exe

description pid process target process

PID 2108 set thread context of 2976 2108 dekont01.pdf.exe dekont01.pdf.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

dekont01.pdf.exe

pid process

2976 dekont01.pdf.exe
2976 dekont01.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dekont01.pdf.exedekont01.pdf.exe

description pid process

Token: SeDebugPrivilege 2108 dekont01.pdf.exe
Token: SeDebugPrivilege 2976 dekont01.pdf.exe

flow	ioc
6	checkip.dyndns.org

description	pid	process	target process
PID 2108 set thread context of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe

pid	process
2976	dekont01.pdf.exe
2976	dekont01.pdf.exe

description	pid	process
Token: SeDebugPrivilege	2108	dekont01.pdf.exe
Token: SeDebugPrivilege	2976	dekont01.pdf.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

dekont01.pdf.exe

description	pid	process	target process
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe
PID 2108 wrote to memory of 2976	2108	dekont01.pdf.exe	dekont01.pdf.exe

outlook_office_path 1 IoCs

Processes:

dekont01.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont01.pdf.exe

outlook_win_path 1 IoCs

Processes:

dekont01.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dekont01.pdf.exe

C:\Users\Admin\AppData\Local\Temp\dekont01.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\dekont01.pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2108

C:\Users\Admin\AppData\Local\Temp\dekont01.pdf.exe
C:\Users\Admin\AppData\Local\Temp\dekont01.pdf.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2976

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab7448.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar7499.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
memory/2108-54-0x0000000074500000-0x0000000074BEE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-1-0x0000000074500000-0x0000000074BEE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-0-0x0000000000830000-0x0000000000840000-memory.dmp

Filesize
64KB

Download
memory/2108-37-0x0000000000780000-0x00000000007D0000-memory.dmp

Filesize
320KB

Download
memory/2108-38-0x00000000008F0000-0x0000000000928000-memory.dmp

Filesize
224KB

Download
memory/2108-39-0x00000000022E0000-0x0000000002316000-memory.dmp

Filesize
216KB

Download
memory/2108-40-0x0000000004700000-0x000000000474C000-memory.dmp

Filesize
304KB

Download
memory/2108-41-0x0000000074500000-0x0000000074BEE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-42-0x00000000049B0000-0x00000000049F0000-memory.dmp

Filesize
256KB

Download
memory/2108-2-0x00000000049B0000-0x00000000049F0000-memory.dmp

Filesize
256KB

Download
memory/2976-59-0x00000000049B0000-0x00000000049F0000-memory.dmp

Filesize
256KB

Download
memory/2976-44-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2976-47-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2976-50-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2976-48-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2976-52-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2976-46-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2976-55-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2976-56-0x0000000074500000-0x0000000074BEE000-memory.dmp

Filesize
6.9MB

Download
memory/2976-57-0x00000000049B0000-0x00000000049F0000-memory.dmp

Filesize
256KB

Download
memory/2976-58-0x0000000074500000-0x0000000074BEE000-memory.dmp

Filesize
6.9MB

Download
memory/2976-45-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads