snakekeylogger | 8b9dedaa09d239667dd9cabe0c7efab61712868b32ebb3a50110df8980823ce9

General

Target

DNXS-04-22.exe
Size

868KB
MD5

64932c473d74fbdfdb706a094543cf37
SHA1

f19b8960681b56cab45a9f14871108cf4d522251
SHA256

8b9dedaa09d239667dd9cabe0c7efab61712868b32ebb3a50110df8980823ce9
SHA512

1f662c50b378e5be0dc6faec894fb7266417b5ac2952583efdb6801f873bd5c52e3a6d8d001491ee668c1142456ef33d606f2be7be6749840ac819b70d0023dd
SSDEEP

12288:y2iNzeWFm+1okFwe6N9LtinuoFZK4s5ehC3s5IrA6tN/uYiXdwsh:y1tRFm+1okFPOtT4OgC3s5IlNxi

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.eraslangroup.net
Port:
587
Username:
[email protected]
Password:
aHZAyjDK
Email To:
[email protected]

C2

https://scratchdreams.tk

Signatures

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

Snake Keylogger payload 5 IoCs

resource	yara_rule
behavioral1/memory/2628-9-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2628-17-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2628-15-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2628-13-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/2628-10-0x0000000000400000-0x0000000000426000-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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DNXS-04-22.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DNXS-04-22.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DNXS-04-22.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.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2168 set thread context of 2628	2168	DNXS-04-22.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2628	DNXS-04-22.exe
2628	DNXS-04-22.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	DNXS-04-22.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28
PID 2168 wrote to memory of 2628	2168	DNXS-04-22.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DNXS-04-22.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DNXS-04-22.exe

C:\Users\Admin\AppData\Local\Temp\DNXS-04-22.exe
"C:\Users\Admin\AppData\Local\Temp\DNXS-04-22.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\DNXS-04-22.exe
  "C:\Users\Admin\AppData\Local\Temp\DNXS-04-22.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2628

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

Replay Monitor

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Downloads

memory/2168-18-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2168-1-0x0000000000DF0000-0x0000000000ECE000-memory.dmp

Filesize
888KB

Download
memory/2168-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-3-0x00000000008D0000-0x00000000008E8000-memory.dmp

Filesize
96KB

Download
memory/2168-4-0x0000000000860000-0x000000000086E000-memory.dmp

Filesize
56KB

Download
memory/2168-5-0x0000000000880000-0x0000000000896000-memory.dmp

Filesize
88KB

Download
memory/2168-6-0x00000000049C0000-0x0000000004A28000-memory.dmp

Filesize
416KB

Download
memory/2168-20-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2628-15-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2628-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2628-13-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2628-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2628-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2628-19-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2628-21-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2628-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2628-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2628-22-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2628-23-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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