snakekeylogger | 9bb2525c48049ffd05b8ad6a39a89245b6a4de4914275fcfad2beee8bfaa714d

General

Target

IMG_058741601.exe
Size

732KB
MD5

59380235fed3c5300b01b07ca70148ca
SHA1

81e1f14e30fa437a464d1e068e1963a14212c623
SHA256

9bb2525c48049ffd05b8ad6a39a89245b6a4de4914275fcfad2beee8bfaa714d
SHA512

4bce9d19a8388a3915861b3daa125be6611f8532187a9266bc08425e2dbd5f600c429ed252ea1486daf43f64e665241404378353c06e42d100659ee28807b451

Score

10^/10

snakekeylogger keylogger persistence ransomware spyware stealer

Malware Config

Signatures

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

Snake Keylogger Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/688-27-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral1/memory/688-28-0x0000000000463A9E-mapping.dmp	family_snakekeylogger
behavioral1/memory/688-31-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger

Executes dropped EXE 2 IoCs

Processes:

mnoi.exeInstallUtil.exe

pid process

1456 mnoi.exe
688 InstallUtil.exe
Loads dropped DLL 2 IoCs

Processes:

IMG_058741601.exemnoi.exe

pid process

1096 IMG_058741601.exe
1456 mnoi.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1456	mnoi.exe
688	InstallUtil.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\etsb = "C:\\Users\\Admin\\mnoi.exe"	reg.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.

Processes:

flow ioc

17 freegeoip.app
11 checkip.dyndns.org
16 freegeoip.app
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082
Suspicious use of SetThreadContext 1 IoCs

Processes:

mnoi.exe

description pid process target process

PID 1456 set thread context of 688 1456 mnoi.exe InstallUtil.exe

flow	ioc
17	freegeoip.app
11	checkip.dyndns.org
16	freegeoip.app

description	pid	process	target process
PID 1456 set thread context of 688	1456	mnoi.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

IMG_058741601.exemnoi.exeInstallUtil.exe

pid	process
1096	IMG_058741601.exe
1096	IMG_058741601.exe
1096	IMG_058741601.exe
1096	IMG_058741601.exe
1096	IMG_058741601.exe
1456	mnoi.exe
1456	mnoi.exe
688	InstallUtil.exe
688	InstallUtil.exe
688	InstallUtil.exe
688	InstallUtil.exe
688	InstallUtil.exe
688	InstallUtil.exe
688	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IMG_058741601.exemnoi.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1096 IMG_058741601.exe
Token: SeDebugPrivilege 1456 mnoi.exe
Token: SeDebugPrivilege 688 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1096	IMG_058741601.exe
Token: SeDebugPrivilege	1456	mnoi.exe
Token: SeDebugPrivilege	688	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

IMG_058741601.execmd.exemnoi.exe

description	pid	process	target process
PID 1096 wrote to memory of 1740	1096	IMG_058741601.exe	cmd.exe
PID 1096 wrote to memory of 1740	1096	IMG_058741601.exe	cmd.exe
PID 1096 wrote to memory of 1740	1096	IMG_058741601.exe	cmd.exe
PID 1096 wrote to memory of 1740	1096	IMG_058741601.exe	cmd.exe
PID 1740 wrote to memory of 1216	1740	cmd.exe	reg.exe
PID 1740 wrote to memory of 1216	1740	cmd.exe	reg.exe
PID 1740 wrote to memory of 1216	1740	cmd.exe	reg.exe
PID 1740 wrote to memory of 1216	1740	cmd.exe	reg.exe
PID 1096 wrote to memory of 1456	1096	IMG_058741601.exe	mnoi.exe
PID 1096 wrote to memory of 1456	1096	IMG_058741601.exe	mnoi.exe
PID 1096 wrote to memory of 1456	1096	IMG_058741601.exe	mnoi.exe
PID 1096 wrote to memory of 1456	1096	IMG_058741601.exe	mnoi.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe
PID 1456 wrote to memory of 688	1456	mnoi.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_058741601.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_058741601.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "etsb" /t REG_SZ /d "C:\Users\Admin\mnoi.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "etsb" /t REG_SZ /d "C:\Users\Admin\mnoi.exe"
3⤵
- Adds Run key to start application
PID:1216

C:\Users\Admin\mnoi.exe
"C:\Users\Admin\mnoi.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1456

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\mnoi.exe

MD5
59380235fed3c5300b01b07ca70148ca

SHA1
81e1f14e30fa437a464d1e068e1963a14212c623

SHA256
9bb2525c48049ffd05b8ad6a39a89245b6a4de4914275fcfad2beee8bfaa714d

SHA512
4bce9d19a8388a3915861b3daa125be6611f8532187a9266bc08425e2dbd5f600c429ed252ea1486daf43f64e665241404378353c06e42d100659ee28807b451

Download Submit
C:\Users\Admin\mnoi.exe

MD5
59380235fed3c5300b01b07ca70148ca

SHA1
81e1f14e30fa437a464d1e068e1963a14212c623

SHA256
9bb2525c48049ffd05b8ad6a39a89245b6a4de4914275fcfad2beee8bfaa714d

SHA512
4bce9d19a8388a3915861b3daa125be6611f8532187a9266bc08425e2dbd5f600c429ed252ea1486daf43f64e665241404378353c06e42d100659ee28807b451

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\mnoi.exe

MD5
59380235fed3c5300b01b07ca70148ca

SHA1
81e1f14e30fa437a464d1e068e1963a14212c623

SHA256
9bb2525c48049ffd05b8ad6a39a89245b6a4de4914275fcfad2beee8bfaa714d

SHA512
4bce9d19a8388a3915861b3daa125be6611f8532187a9266bc08425e2dbd5f600c429ed252ea1486daf43f64e665241404378353c06e42d100659ee28807b451

Download Submit
memory/688-30-0x0000000074CF0000-0x00000000753DE000-memory.dmp

Filesize
6.9MB

Download
memory/688-31-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/688-33-0x0000000004910000-0x0000000004911000-memory.dmp

Filesize
4KB

Download
memory/688-28-0x0000000000463A9E-mapping.dmp

Download
memory/688-27-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1096-11-0x00000000009F1000-0x00000000009F2000-memory.dmp

Filesize
4KB

Download
memory/1096-2-0x0000000074CF0000-0x00000000753DE000-memory.dmp

Filesize
6.9MB

Download
memory/1096-8-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/1096-7-0x0000000000870000-0x000000000088E000-memory.dmp

Filesize
120KB

Download
memory/1096-5-0x00000000009F0000-0x00000000009F1000-memory.dmp

Filesize
4KB

Download
memory/1096-3-0x0000000000F50000-0x0000000000F51000-memory.dmp

Filesize
4KB

Download
memory/1216-10-0x0000000000000000-mapping.dmp

Download
memory/1456-24-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/1456-23-0x00000000007E0000-0x00000000007EB000-memory.dmp

Filesize
44KB

Download
memory/1456-19-0x0000000004230000-0x0000000004231000-memory.dmp

Filesize
4KB

Download
memory/1456-17-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/1456-16-0x0000000074CF0000-0x00000000753DE000-memory.dmp

Filesize
6.9MB

Download
memory/1456-13-0x0000000000000000-mapping.dmp

Download
memory/1740-9-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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