snakekeylogger | b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20

Analysis

max time kernel
54s
max time network
116s
platform
windows7_x64
resource
win7-20220414-en
submitted
22-05-2022 05:31

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General

Target

IMG_25579.exe
Size

1.4MB
MD5

5ab98f94682ec463f48cada8b9811055
SHA1

550fc889de33b94a63dfaf1138bcc54be489f767
SHA256

b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20
SHA512

e3e4ed794ebf4bf3e246eab58699df4b822fdea5cab238b1a838c09b2d596a5228db934e631a843010df618e42524a32e7d4b750d536c9f20c827b78d71b87c6

Score

10^/10

snakekeylogger collection keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
server255.web-hosting.com
Port:
587
Username:
next@janryone.xyz
Password:
Gm3v,2bov]gn

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger
Executes dropped EXE 2 IoCs

Processes:

bsys.exeInstallUtil.exe

pid process

948 bsys.exe
1996 InstallUtil.exe
Drops startup file 1 IoCs

Processes:

IMG_25579.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bsys.lnk IMG_25579.exe
Loads dropped DLL 7 IoCs

Processes:

IMG_25579.exebsys.exeWerFault.exe

pid process

1672 IMG_25579.exe
948 bsys.exe
1952 WerFault.exe
1952 WerFault.exe
1952 WerFault.exe
1952 WerFault.exe
1952 WerFault.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
948	bsys.exe
1996	InstallUtil.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bsys.lnk	IMG_25579.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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

8 freegeoip.app
9 freegeoip.app
3 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

bsys.exe

description pid process target process

PID 948 set thread context of 1996 948 bsys.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1952 1996 WerFault.exe InstallUtil.exe

flow	ioc
8	freegeoip.app
9	freegeoip.app
3	checkip.dyndns.org

description	pid	process	target process
PID 948 set thread context of 1996	948	bsys.exe	InstallUtil.exe

pid	pid_target	process	target process
1952	1996	WerFault.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

IMG_25579.exebsys.exeInstallUtil.exe

pid	process
1672	IMG_25579.exe
1672	IMG_25579.exe
1672	IMG_25579.exe
948	bsys.exe
948	bsys.exe
1996	InstallUtil.exe
1996	InstallUtil.exe
1996	InstallUtil.exe
1996	InstallUtil.exe
1996	InstallUtil.exe
1996	InstallUtil.exe
1996	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IMG_25579.exebsys.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1672 IMG_25579.exe
Token: SeDebugPrivilege 948 bsys.exe
Token: SeDebugPrivilege 1996 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1672	IMG_25579.exe
Token: SeDebugPrivilege	948	bsys.exe
Token: SeDebugPrivilege	1996	InstallUtil.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

IMG_25579.exebsys.exeInstallUtil.exe

description	pid	process	target process
PID 1672 wrote to memory of 948	1672	IMG_25579.exe	bsys.exe
PID 1672 wrote to memory of 948	1672	IMG_25579.exe	bsys.exe
PID 1672 wrote to memory of 948	1672	IMG_25579.exe	bsys.exe
PID 1672 wrote to memory of 948	1672	IMG_25579.exe	bsys.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 948 wrote to memory of 1996	948	bsys.exe	InstallUtil.exe
PID 1996 wrote to memory of 1952	1996	InstallUtil.exe	WerFault.exe
PID 1996 wrote to memory of 1952	1996	InstallUtil.exe	WerFault.exe
PID 1996 wrote to memory of 1952	1996	InstallUtil.exe	WerFault.exe
PID 1996 wrote to memory of 1952	1996	InstallUtil.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_25579.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_25579.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672

C:\Users\Admin\bsys.exe
"C:\Users\Admin\bsys.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:948

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 1576
4⤵
- Loads dropped DLL
- Program crash
PID:1952

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\bsys.exe
Filesize
1.4MB

MD5
5ab98f94682ec463f48cada8b9811055

SHA1
550fc889de33b94a63dfaf1138bcc54be489f767

SHA256
b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20

SHA512
e3e4ed794ebf4bf3e246eab58699df4b822fdea5cab238b1a838c09b2d596a5228db934e631a843010df618e42524a32e7d4b750d536c9f20c827b78d71b87c6

Download Submit
C:\Users\Admin\bsys.exe
Filesize
1.4MB

MD5
5ab98f94682ec463f48cada8b9811055

SHA1
550fc889de33b94a63dfaf1138bcc54be489f767

SHA256
b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20

SHA512
e3e4ed794ebf4bf3e246eab58699df4b822fdea5cab238b1a838c09b2d596a5228db934e631a843010df618e42524a32e7d4b750d536c9f20c827b78d71b87c6

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\bsys.exe
Filesize
1.4MB

MD5
5ab98f94682ec463f48cada8b9811055

SHA1
550fc889de33b94a63dfaf1138bcc54be489f767

SHA256
b1c89b167239238aea8a718d40751a1233ab4b9479b19e6feb86ed5a4c9aec20

SHA512
e3e4ed794ebf4bf3e246eab58699df4b822fdea5cab238b1a838c09b2d596a5228db934e631a843010df618e42524a32e7d4b750d536c9f20c827b78d71b87c6

Download Submit
memory/948-59-0x0000000000000000-mapping.dmp

Download
memory/948-65-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/948-64-0x0000000000740000-0x0000000000754000-memory.dmp

Filesize
80KB

Download
memory/948-62-0x0000000000950000-0x0000000000AC0000-memory.dmp

Filesize
1.4MB

Download
memory/1672-54-0x00000000008A0000-0x0000000000A10000-memory.dmp

Filesize
1.4MB

Download
memory/1672-57-0x00000000763C1000-0x00000000763C3000-memory.dmp

Filesize
8KB

Download
memory/1672-56-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1672-55-0x0000000000470000-0x0000000000496000-memory.dmp

Filesize
152KB

Download
memory/1952-81-0x0000000000000000-mapping.dmp

Download
memory/1996-69-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1996-79-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1996-77-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1996-74-0x000000000046370E-mapping.dmp

Download
memory/1996-73-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1996-72-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1996-71-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1996-68-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download