snakekeylogger | b161be7554c0f571a5ae4db7a8c9ea60e7126c589339073b7c0aaacbd5679e9b

General

Target

Dekont.pdf.exe
Size

628KB
MD5

c8fa93aa2b19901add93130d7e19ac8c
SHA1

674ddfbbde28933ccd2c45192ab1fe864ce8fda8
SHA256

b161be7554c0f571a5ae4db7a8c9ea60e7126c589339073b7c0aaacbd5679e9b
SHA512

4aa0519657f0fc4589e25a0cfdf954782aa8c2b9f756655eb79f428350786f7a9492b8be979eb235010d3e6c8e2cd8b31adb8482e580e47b4752b6f087209b27
SSDEEP

12288:0WOTNXc33HunBAFnS1GDtb7AufW1mIzAnf0EFQWhf3lnacr6aSTr:j3XuBqSOqNmIzAcEFdhf5a+

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6630888620:AAE93xtVx5O2Dxt-GABfyfFS0US096iv3q8/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
behavioral2/memory/4232-12-0x0000000000400000-0x0000000000424000-memory.dmp	family_snakekeylogger
behavioral2/memory/4232-21-0x0000000005010000-0x0000000005020000-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.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Dekont.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Dekont.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

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

Processes:

Dekont.pdf.exe

description pid process target process

PID 3576 set thread context of 4232 3576 Dekont.pdf.exe Dekont.pdf.exe

flow	ioc
65	checkip.dyndns.org

description	pid	process	target process
PID 3576 set thread context of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

Dekont.pdf.exeDekont.pdf.exe

pid	process
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
3576	Dekont.pdf.exe
4232	Dekont.pdf.exe
4232	Dekont.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Dekont.pdf.exeDekont.pdf.exe

description pid process

Token: SeDebugPrivilege 3576 Dekont.pdf.exe
Token: SeDebugPrivilege 4232 Dekont.pdf.exe

description	pid	process
Token: SeDebugPrivilege	3576	Dekont.pdf.exe
Token: SeDebugPrivilege	4232	Dekont.pdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Dekont.pdf.exe

description	pid	process	target process
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe
PID 3576 wrote to memory of 4232	3576	Dekont.pdf.exe	Dekont.pdf.exe

outlook_office_path 1 IoCs

Processes:

Dekont.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Dekont.pdf.exe

outlook_win_path 1 IoCs

Processes:

Dekont.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Dekont.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Dekont.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Dekont.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3576

C:\Users\Admin\AppData\Local\Temp\Dekont.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Dekont.pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Microsoft\CLR_v4.0_32\UsageLogs\Dekont.pdf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3576-10-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/3576-16-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/3576-3-0x00000000054F0000-0x0000000005582000-memory.dmp

Filesize
584KB

Download
memory/3576-4-0x0000000005620000-0x0000000005630000-memory.dmp

Filesize
64KB

Download
memory/3576-6-0x00000000055B0000-0x00000000055C6000-memory.dmp

Filesize
88KB

Download
memory/3576-5-0x00000000055C0000-0x00000000055CA000-memory.dmp

Filesize
40KB

Download
memory/3576-7-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/3576-11-0x0000000005620000-0x0000000005630000-memory.dmp

Filesize
64KB

Download
memory/3576-9-0x00000000087F0000-0x000000000888C000-memory.dmp

Filesize
624KB

Download
memory/3576-2-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/3576-8-0x0000000006240000-0x00000000062A0000-memory.dmp

Filesize
384KB

Download
memory/3576-0-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/3576-1-0x0000000000A70000-0x0000000000B12000-memory.dmp

Filesize
648KB

Download
memory/4232-19-0x00000000062B0000-0x0000000006472000-memory.dmp

Filesize
1.8MB

Download
memory/4232-15-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/4232-17-0x0000000005010000-0x0000000005020000-memory.dmp

Filesize
64KB

Download
memory/4232-18-0x0000000006090000-0x00000000060E0000-memory.dmp

Filesize
320KB

Download
memory/4232-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4232-20-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/4232-21-0x0000000005010000-0x0000000005020000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads