snakekeylogger | d7217211343721c3d6d51d07778a2d90910cf186ef457670dd396f90604afeed

General

Target

DEKONT-01.pdf.exe
Size

175KB
MD5

f5c32e3ed667969186412395e045db8c
SHA1

132274978970ca54c6849f89e931cc1386d2e6bc
SHA256

d7217211343721c3d6d51d07778a2d90910cf186ef457670dd396f90604afeed
SHA512

6b43eb5564d2ff660d2fae6c81097b66ea4ba4fef7e6f6a9f3f3adabf10d3248b2955aa93c6077778002f6aa4bcd181ffd69f37190be18320e0688902c10c208
SSDEEP

1536:LlZYKpARbL1uC6Ajba5V4euvvX32DEGu34HFnCxCeToYP8CIE3mWGjgfxscFCw9H:pusC6MzeuHbiGoDEnxscFCqg16aaWno

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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3612-11-0x0000000000400000-0x0000000000424000-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:

DEKONT-01.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEKONT-01.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEKONT-01.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEKONT-01.pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

DEKONT-01.pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nkdfbpofqx = "C:\\Users\\Admin\\AppData\\Roaming\\Nkdfbpofqx.exe"	DEKONT-01.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

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

Processes:

DEKONT-01.pdf.exe

description pid process target process

PID 4660 set thread context of 3612 4660 DEKONT-01.pdf.exe DEKONT-01.pdf.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DEKONT-01.pdf.exeDEKONT-01.pdf.exe

pid process

4660 DEKONT-01.pdf.exe
4660 DEKONT-01.pdf.exe
3612 DEKONT-01.pdf.exe
3612 DEKONT-01.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DEKONT-01.pdf.exeDEKONT-01.pdf.exe

description pid process

Token: SeDebugPrivilege 4660 DEKONT-01.pdf.exe
Token: SeDebugPrivilege 3612 DEKONT-01.pdf.exe

flow	ioc
72	checkip.dyndns.org

description	pid	process	target process
PID 4660 set thread context of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe

pid	process
4660	DEKONT-01.pdf.exe
4660	DEKONT-01.pdf.exe
3612	DEKONT-01.pdf.exe
3612	DEKONT-01.pdf.exe

description	pid	process
Token: SeDebugPrivilege	4660	DEKONT-01.pdf.exe
Token: SeDebugPrivilege	3612	DEKONT-01.pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

DEKONT-01.pdf.exe

description	pid	process	target process
PID 4660 wrote to memory of 4192	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 4192	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 4192	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe
PID 4660 wrote to memory of 3612	4660	DEKONT-01.pdf.exe	DEKONT-01.pdf.exe

outlook_office_path 1 IoCs

Processes:

DEKONT-01.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEKONT-01.pdf.exe

outlook_win_path 1 IoCs

Processes:

DEKONT-01.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEKONT-01.pdf.exe

C:\Users\Admin\AppData\Local\Temp\DEKONT-01.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DEKONT-01.pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4660

C:\Users\Admin\AppData\Local\Temp\DEKONT-01.pdf.exe
C:\Users\Admin\AppData\Local\Temp\DEKONT-01.pdf.exe
2⤵
PID:4192

C:\Users\Admin\AppData\Local\Temp\DEKONT-01.pdf.exe
C:\Users\Admin\AppData\Local\Temp\DEKONT-01.pdf.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3612

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\Microsoft\CLR_v4.0_32\UsageLogs\DEKONT-01.pdf.exe.log

Filesize
1KB

MD5
489c7565f9b029ba9fadff774073cc98

SHA1
56c05089b33ee7e7dfa9e6a2d098164efd8e1150

SHA256
10bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4

SHA512
ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac

Download Submit
memory/3612-17-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/3612-16-0x0000000005420000-0x00000000054BC000-memory.dmp

Filesize
624KB

Download
memory/3612-23-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/3612-15-0x0000000074AA0000-0x0000000075250000-memory.dmp

Filesize
7.7MB

Download
memory/3612-22-0x0000000074AA0000-0x0000000075250000-memory.dmp

Filesize
7.7MB

Download
memory/3612-21-0x0000000006760000-0x000000000676A000-memory.dmp

Filesize
40KB

Download
memory/3612-20-0x00000000069C0000-0x0000000006A52000-memory.dmp

Filesize
584KB

Download
memory/3612-19-0x00000000067F0000-0x00000000069B2000-memory.dmp

Filesize
1.8MB

Download
memory/3612-18-0x00000000065D0000-0x0000000006620000-memory.dmp

Filesize
320KB

Download
memory/3612-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4660-7-0x0000000074AA0000-0x0000000075250000-memory.dmp

Filesize
7.7MB

Download
memory/4660-5-0x0000000006980000-0x00000000069B6000-memory.dmp

Filesize
216KB

Download
memory/4660-4-0x0000000006820000-0x0000000006858000-memory.dmp

Filesize
224KB

Download
memory/4660-3-0x0000000006660000-0x00000000066B0000-memory.dmp

Filesize
320KB

Download
memory/4660-0-0x0000000074AA0000-0x0000000075250000-memory.dmp

Filesize
7.7MB

Download
memory/4660-9-0x0000000006FE0000-0x0000000007584000-memory.dmp

Filesize
5.6MB

Download
memory/4660-8-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/4660-2-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/4660-6-0x00000000069C0000-0x0000000006A0C000-memory.dmp

Filesize
304KB

Download
memory/4660-14-0x0000000074AA0000-0x0000000075250000-memory.dmp

Filesize
7.7MB

Download
memory/4660-1-0x0000000000870000-0x00000000008A0000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads