snakekeylogger | db0b892ea1b776ac1324cdb701d9d5fe49e4817259e93cedf8249ed3f9983664

General

Target

IMG_13791.pdf.exe
Size

1.5MB
MD5

52254e42523afbd28c7377c6b7f82cc0
SHA1

bc9fdf2d59e3b3c54c4dc1cdea9c5954ceebc32e
SHA256

db0b892ea1b776ac1324cdb701d9d5fe49e4817259e93cedf8249ed3f9983664
SHA512

0a88462bdefb64e98e93737580a0a0ad212c2e3e0fe6ed9448b67271ece6edf379bc3404d4f622016fe3b0779c39dc4600340a2693d78313421efcf47db5398c

Score

10^/10

snakekeylogger keylogger persistence spyware stealer

Malware Config

Signatures

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

Snake Keylogger Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2092-27-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral2/memory/2092-28-0x000000000046251E-mapping.dmp	family_snakekeylogger

Executes dropped EXE 2 IoCs

Processes:

scis.exeInstallUtil.exe

pid process

1172 scis.exe
2092 InstallUtil.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
1172	scis.exe
2092	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-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\not = "C:\\Users\\Admin\\scis.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

15 checkip.dyndns.org
18 freegeoip.app
19 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

scis.exe

description pid process target process

PID 1172 set thread context of 2092 1172 scis.exe InstallUtil.exe

flow	ioc
15	checkip.dyndns.org
18	freegeoip.app
19	freegeoip.app

description	pid	process	target process
PID 1172 set thread context of 2092	1172	scis.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

IMG_13791.pdf.exescis.exeInstallUtil.exe

pid	process
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
3132	IMG_13791.pdf.exe
1172	scis.exe
1172	scis.exe
2092	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IMG_13791.pdf.exescis.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 3132 IMG_13791.pdf.exe
Token: SeDebugPrivilege 1172 scis.exe
Token: SeDebugPrivilege 2092 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	3132	IMG_13791.pdf.exe
Token: SeDebugPrivilege	1172	scis.exe
Token: SeDebugPrivilege	2092	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

IMG_13791.pdf.execmd.exescis.exe

description	pid	process	target process
PID 3132 wrote to memory of 1328	3132	IMG_13791.pdf.exe	cmd.exe
PID 3132 wrote to memory of 1328	3132	IMG_13791.pdf.exe	cmd.exe
PID 3132 wrote to memory of 1328	3132	IMG_13791.pdf.exe	cmd.exe
PID 1328 wrote to memory of 3692	1328	cmd.exe	reg.exe
PID 1328 wrote to memory of 3692	1328	cmd.exe	reg.exe
PID 1328 wrote to memory of 3692	1328	cmd.exe	reg.exe
PID 3132 wrote to memory of 1172	3132	IMG_13791.pdf.exe	scis.exe
PID 3132 wrote to memory of 1172	3132	IMG_13791.pdf.exe	scis.exe
PID 3132 wrote to memory of 1172	3132	IMG_13791.pdf.exe	scis.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe
PID 1172 wrote to memory of 2092	1172	scis.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_13791.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_13791.pdf.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3132

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "not" /t REG_SZ /d "C:\Users\Admin\scis.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1328

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "not" /t REG_SZ /d "C:\Users\Admin\scis.exe"
3⤵
- Adds Run key to start application
PID:3692

C:\Users\Admin\scis.exe
"C:\Users\Admin\scis.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1172

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:2092

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

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\scis.exe
MD5
52254e42523afbd28c7377c6b7f82cc0

SHA1
bc9fdf2d59e3b3c54c4dc1cdea9c5954ceebc32e

SHA256
db0b892ea1b776ac1324cdb701d9d5fe49e4817259e93cedf8249ed3f9983664

SHA512
0a88462bdefb64e98e93737580a0a0ad212c2e3e0fe6ed9448b67271ece6edf379bc3404d4f622016fe3b0779c39dc4600340a2693d78313421efcf47db5398c

Download Submit
C:\Users\Admin\scis.exe
MD5
52254e42523afbd28c7377c6b7f82cc0

SHA1
bc9fdf2d59e3b3c54c4dc1cdea9c5954ceebc32e

SHA256
db0b892ea1b776ac1324cdb701d9d5fe49e4817259e93cedf8249ed3f9983664

SHA512
0a88462bdefb64e98e93737580a0a0ad212c2e3e0fe6ed9448b67271ece6edf379bc3404d4f622016fe3b0779c39dc4600340a2693d78313421efcf47db5398c

Download Submit
memory/1172-26-0x0000000004EF1000-0x0000000004EF2000-memory.dmp

Filesize
4KB

Download
memory/1172-25-0x000000000B7E0000-0x000000000B7E1000-memory.dmp

Filesize
4KB

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memory/1172-24-0x0000000008330000-0x000000000833B000-memory.dmp

Filesize
44KB

Download
memory/1172-23-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

Filesize
4KB

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memory/1172-16-0x0000000073820000-0x0000000073F0E000-memory.dmp

Filesize
6.9MB

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memory/1172-13-0x0000000000000000-mapping.dmp

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memory/1328-10-0x0000000000000000-mapping.dmp

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memory/2092-27-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

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memory/2092-28-0x000000000046251E-mapping.dmp

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memory/2092-39-0x0000000006510000-0x0000000006511000-memory.dmp

Filesize
4KB

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memory/2092-37-0x0000000006290000-0x0000000006291000-memory.dmp

Filesize
4KB

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memory/2092-36-0x0000000005300000-0x0000000005301000-memory.dmp

Filesize
4KB

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memory/2092-34-0x00000000056C0000-0x00000000056C1000-memory.dmp

Filesize
4KB

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memory/2092-31-0x0000000073820000-0x0000000073F0E000-memory.dmp

Filesize
6.9MB

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memory/3132-2-0x0000000073820000-0x0000000073F0E000-memory.dmp

Filesize
6.9MB

Download
memory/3132-12-0x0000000004C81000-0x0000000004C82000-memory.dmp

Filesize
4KB

Download
memory/3132-5-0x0000000004A60000-0x0000000004A61000-memory.dmp

Filesize
4KB

Download
memory/3132-3-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

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memory/3132-6-0x0000000004C80000-0x0000000004C81000-memory.dmp

Filesize
4KB

Download
memory/3132-7-0x00000000049C0000-0x00000000049DE000-memory.dmp

Filesize
120KB

Download
memory/3132-8-0x0000000002560000-0x0000000002561000-memory.dmp

Filesize
4KB

Download
memory/3132-9-0x0000000007410000-0x0000000007411000-memory.dmp

Filesize
4KB

Download
memory/3692-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads