snakekeylogger | e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7

General

Target

e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe
Size

595KB
MD5

5314dc731381de014b294374b0eb7666
SHA1

9e3577f1495fdbb76115231a8a6680db0bed3632
SHA256

e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7
SHA512

0eb21211a73870d1d9681cd236bcb6edfe5e2049477fc4773c8f7e3f9868352dac55bd95df8b3547bdad060ae2ee05b8e8a7280b904f273deff0c2881b431f44
SSDEEP

12288:oYV6MorX7qzuC3QHO9FQVHPF51jgc7nbUwhIZLBZE:HBXu9HGaVH7nbUwGfE

Score

10^/10

snakekeylogger collection discovery keylogger stealer upx

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: ftp
Host:
ftp://ftp.hogarsancamilo.org/
Port:
21
Username:
[email protected]
Password:
eg0wtRsF5HKA

Signatures

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

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/1336-24-0x0000000000370000-0x0000000000396000-memory.dmp	family_snakekeylogger

Snakekeylogger family
snakekeylogger

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\brontothere.vbs	brontothere.exe

Executes dropped EXE 1 IoCs

pid	Process
2132	brontothere.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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
13	checkip.dyndns.org
15	reallyfreegeoip.org
16	reallyfreegeoip.org

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3472-13-0x0000000000850000-0x00000000009A7000-memory.dmp	autoit_exe
behavioral2/memory/2132-22-0x0000000000F40000-0x0000000001340000-memory.dmp	autoit_exe
behavioral2/memory/2132-26-0x0000000000510000-0x0000000000667000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2132 set thread context of 1336	2132	brontothere.exe	84

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3472-0-0x0000000000850000-0x00000000009A7000-memory.dmp	upx
behavioral2/files/0x0007000000023c97-10.dat	upx
behavioral2/memory/2132-11-0x0000000000510000-0x0000000000667000-memory.dmp	upx
behavioral2/memory/3472-13-0x0000000000850000-0x00000000009A7000-memory.dmp	upx
behavioral2/memory/2132-26-0x0000000000510000-0x0000000000667000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	brontothere.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1336	RegSvcs.exe
1336	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2132	brontothere.exe
2132	brontothere.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3472	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe
3472	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe
2132	brontothere.exe
2132	brontothere.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3472	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe
3472	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe
2132	brontothere.exe
2132	brontothere.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 2132	3472	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe	83
PID 3472 wrote to memory of 2132	3472	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe	83
PID 3472 wrote to memory of 2132	3472	e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe	83
PID 2132 wrote to memory of 1336	2132	brontothere.exe	84
PID 2132 wrote to memory of 1336	2132	brontothere.exe	84
PID 2132 wrote to memory of 1336	2132	brontothere.exe	84
PID 2132 wrote to memory of 1336	2132	brontothere.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe
"C:\Users\Admin\AppData\Local\Temp\e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Users\Admin\AppData\Local\Milburr\brontothere.exe
  "C:\Users\Admin\AppData\Local\Temp\e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:1336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Milburr\brontothere.exe

Filesize
595KB

MD5
5314dc731381de014b294374b0eb7666

SHA1
9e3577f1495fdbb76115231a8a6680db0bed3632

SHA256
e248994d1154ecc091a72040543631f6faf42e980b524193b6ea207262a374a7

SHA512
0eb21211a73870d1d9681cd236bcb6edfe5e2049477fc4773c8f7e3f9868352dac55bd95df8b3547bdad060ae2ee05b8e8a7280b904f273deff0c2881b431f44

Download Submit
memory/1336-33-0x00000000060D0000-0x0000000006162000-memory.dmp

Filesize
584KB

Download
memory/1336-35-0x0000000073A8E000-0x0000000073A8F000-memory.dmp

Filesize
4KB

Download
memory/1336-34-0x00000000060A0000-0x00000000060AA000-memory.dmp

Filesize
40KB

Download
memory/1336-36-0x0000000073A80000-0x0000000074230000-memory.dmp

Filesize
7.7MB

Download
memory/1336-31-0x0000000005FE0000-0x0000000006030000-memory.dmp

Filesize
320KB

Download
memory/1336-24-0x0000000000370000-0x0000000000396000-memory.dmp

Filesize
152KB

Download
memory/1336-32-0x0000000006200000-0x00000000063C2000-memory.dmp

Filesize
1.8MB

Download
memory/1336-27-0x0000000073A8E000-0x0000000073A8F000-memory.dmp

Filesize
4KB

Download
memory/1336-28-0x0000000005190000-0x0000000005734000-memory.dmp

Filesize
5.6MB

Download
memory/1336-29-0x0000000004CC0000-0x0000000004D5C000-memory.dmp

Filesize
624KB

Download
memory/1336-30-0x0000000073A80000-0x0000000074230000-memory.dmp

Filesize
7.7MB

Download
memory/2132-26-0x0000000000510000-0x0000000000667000-memory.dmp

Filesize
1.3MB

Download
memory/2132-22-0x0000000000F40000-0x0000000001340000-memory.dmp

Filesize
4.0MB

Download
memory/2132-11-0x0000000000510000-0x0000000000667000-memory.dmp

Filesize
1.3MB

Download
memory/3472-0-0x0000000000850000-0x00000000009A7000-memory.dmp

Filesize
1.3MB

Download
memory/3472-13-0x0000000000850000-0x00000000009A7000-memory.dmp

Filesize
1.3MB

Download
memory/3472-7-0x0000000000BF0000-0x0000000000FF0000-memory.dmp

Filesize
4.0MB

Download

Analysis

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