snakekeylogger | bd0d59702d2d99ee59e5d10834c234e2fa98bfb4d02b19500f3a67bbff70e7d5

General

Target

IMG_71103.pdf.exe
Size

1.5MB
MD5

96677fa4409a98a04a9c87737eb1f167
SHA1

0a21c71633a30db91f5b6572ca8e283ed3229109
SHA256

bd0d59702d2d99ee59e5d10834c234e2fa98bfb4d02b19500f3a67bbff70e7d5
SHA512

548b9b3f207cfce453221d08bc11d247aeae376d7ee8d68c7cdf38d4762f52d4a62d56fc6682df6b007cd11be93c2281ea48ed498704257da1e4da519ccef4ca

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/4088-27-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral2/memory/4088-28-0x000000000046372E-mapping.dmp	family_snakekeylogger

Executes dropped EXE 2 IoCs

Processes:

scis.exeInstallUtil.exe

pid process

564 scis.exe
4088 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
564	scis.exe
4088	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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\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

19 freegeoip.app
20 freegeoip.app
16 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

scis.exe

description pid process target process

PID 564 set thread context of 4088 564 scis.exe InstallUtil.exe

flow	ioc
19	freegeoip.app
20	freegeoip.app
16	checkip.dyndns.org

description	pid	process	target process
PID 564 set thread context of 4088	564	scis.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

IMG_71103.pdf.exescis.exeInstallUtil.exe

pid	process
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
4704	IMG_71103.pdf.exe
564	scis.exe
564	scis.exe
4088	InstallUtil.exe
4088	InstallUtil.exe
4088	InstallUtil.exe
4088	InstallUtil.exe
4088	InstallUtil.exe
4088	InstallUtil.exe
4088	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IMG_71103.pdf.exescis.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 4704 IMG_71103.pdf.exe
Token: SeDebugPrivilege 564 scis.exe
Token: SeDebugPrivilege 4088 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4704	IMG_71103.pdf.exe
Token: SeDebugPrivilege	564	scis.exe
Token: SeDebugPrivilege	4088	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

IMG_71103.pdf.execmd.exescis.exe

description	pid	process	target process
PID 4704 wrote to memory of 4208	4704	IMG_71103.pdf.exe	cmd.exe
PID 4704 wrote to memory of 4208	4704	IMG_71103.pdf.exe	cmd.exe
PID 4704 wrote to memory of 4208	4704	IMG_71103.pdf.exe	cmd.exe
PID 4208 wrote to memory of 3180	4208	cmd.exe	reg.exe
PID 4208 wrote to memory of 3180	4208	cmd.exe	reg.exe
PID 4208 wrote to memory of 3180	4208	cmd.exe	reg.exe
PID 4704 wrote to memory of 564	4704	IMG_71103.pdf.exe	scis.exe
PID 4704 wrote to memory of 564	4704	IMG_71103.pdf.exe	scis.exe
PID 4704 wrote to memory of 564	4704	IMG_71103.pdf.exe	scis.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe
PID 564 wrote to memory of 4088	564	scis.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\IMG_71103.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_71103.pdf.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4704

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:4208

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:3180

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:564

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:4088

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

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
96677fa4409a98a04a9c87737eb1f167

SHA1
0a21c71633a30db91f5b6572ca8e283ed3229109

SHA256
bd0d59702d2d99ee59e5d10834c234e2fa98bfb4d02b19500f3a67bbff70e7d5

SHA512
548b9b3f207cfce453221d08bc11d247aeae376d7ee8d68c7cdf38d4762f52d4a62d56fc6682df6b007cd11be93c2281ea48ed498704257da1e4da519ccef4ca

Download Submit
C:\Users\Admin\scis.exe
MD5
96677fa4409a98a04a9c87737eb1f167

SHA1
0a21c71633a30db91f5b6572ca8e283ed3229109

SHA256
bd0d59702d2d99ee59e5d10834c234e2fa98bfb4d02b19500f3a67bbff70e7d5

SHA512
548b9b3f207cfce453221d08bc11d247aeae376d7ee8d68c7cdf38d4762f52d4a62d56fc6682df6b007cd11be93c2281ea48ed498704257da1e4da519ccef4ca

Download Submit
memory/564-26-0x00000000052E1000-0x00000000052E2000-memory.dmp

Filesize
4KB

Download
memory/564-25-0x000000000BAE0000-0x000000000BAE1000-memory.dmp

Filesize
4KB

Download
memory/564-24-0x0000000008630000-0x000000000863B000-memory.dmp

Filesize
44KB

Download
memory/564-23-0x00000000052E0000-0x00000000052E1000-memory.dmp

Filesize
4KB

Download
memory/564-16-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

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memory/564-13-0x0000000000000000-mapping.dmp

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memory/3180-11-0x0000000000000000-mapping.dmp

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memory/4088-27-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

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memory/4088-28-0x000000000046372E-mapping.dmp

Download
memory/4088-39-0x0000000006630000-0x0000000006631000-memory.dmp

Filesize
4KB

Download
memory/4088-37-0x00000000063A0000-0x00000000063A1000-memory.dmp

Filesize
4KB

Download
memory/4088-36-0x0000000005390000-0x0000000005391000-memory.dmp

Filesize
4KB

Download
memory/4088-34-0x00000000057D0000-0x00000000057D1000-memory.dmp

Filesize
4KB

Download
memory/4088-31-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

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memory/4208-10-0x0000000000000000-mapping.dmp

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memory/4704-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

Download
memory/4704-5-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

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memory/4704-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

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memory/4704-12-0x0000000005011000-0x0000000005012000-memory.dmp

Filesize
4KB

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memory/4704-6-0x0000000000D70000-0x0000000000D8E000-memory.dmp

Filesize
120KB

Download
memory/4704-7-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

Filesize
4KB

Download
memory/4704-8-0x0000000007740000-0x0000000007741000-memory.dmp

Filesize
4KB

Download
memory/4704-9-0x0000000005010000-0x0000000005011000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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