snakekeylogger | de733e6e538a18485275b5cd0a2440629d0b18e76b462fb46eb4760fd2d59c7e

General

Target

PURCHASE ORDER 2500510.exe
Size

641KB
MD5

991a35fbeb3caf5fcc543dae4c51754d
SHA1

2deda7f88f3d9a321f258209b42450d36a488053
SHA256

46939c1237850fb1b82044325744c01bc3813894a34d3b77caf3a592d1bd805e
SHA512

058340d3496230e62248ab125f167967cddc9f52b90ba80136dd9c756d2c2c06129bae150d5c6d43aa0eac5dc411ab57185be4b5fcc50e7bd2e401c6853ead3f
SSDEEP

12288:ClzMjvOn6nzx1Vjp0tOJSAvQ36eUbKp0/n55hxNiQkUTB1GxPI1HPR34FQCecz:OIj2n6nT0IJO6eUm6/nhxN5BYg1HPRod

Score

10^/10

snakekeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7609353408:AAHVKIXrMIpRBNb_v5735NfKrW4Z4irdK8M/sendMessage?chat_id=2117893104

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/4848-11-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Snakekeylogger 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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE ORDER 2500510.exe
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE ORDER 2500510.exe
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE ORDER 2500510.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
31	checkip.dyndns.org
34	reallyfreegeoip.org
35	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3716 set thread context of 4848	3716	PURCHASE ORDER 2500510.exe	96

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PURCHASE ORDER 2500510.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PURCHASE ORDER 2500510.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4848	PURCHASE ORDER 2500510.exe
4848	PURCHASE ORDER 2500510.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	PURCHASE ORDER 2500510.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96
PID 3716 wrote to memory of 4848	3716	PURCHASE ORDER 2500510.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE ORDER 2500510.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE ORDER 2500510.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 2500510.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 2500510.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 2500510.exe
  "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 2500510.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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\PURCHASE ORDER 2500510.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3716-4-0x0000000005940000-0x000000000594A000-memory.dmp

Filesize
40KB

Download
memory/3716-15-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3716-3-0x0000000005960000-0x00000000059F2000-memory.dmp

Filesize
584KB

Download
memory/3716-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/3716-5-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3716-6-0x0000000005E40000-0x0000000005E58000-memory.dmp

Filesize
96KB

Download
memory/3716-7-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/3716-8-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3716-2-0x0000000005E70000-0x0000000006414000-memory.dmp

Filesize
5.6MB

Download
memory/3716-9-0x0000000006D00000-0x0000000006D6A000-memory.dmp

Filesize
424KB

Download
memory/3716-10-0x00000000094A0000-0x000000000953C000-memory.dmp

Filesize
624KB

Download
memory/3716-1-0x0000000000EE0000-0x0000000000F86000-memory.dmp

Filesize
664KB

Download
memory/4848-14-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4848-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4848-16-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4848-17-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4848-18-0x00000000065A0000-0x00000000065F0000-memory.dmp

Filesize
320KB

Download
memory/4848-19-0x00000000067C0000-0x0000000006982000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing