snakekeylogger | d544db52d190e289a688183c69680b7c9fdeb459116d0a99a95185ad28474920

General

Target

55c92e2557966f31dcba970eb7566d5d.exe
Size

1.2MB
MD5

55c92e2557966f31dcba970eb7566d5d
SHA1

ba3ebb374d99669f02ef8ead385f798ac8e648e1
SHA256

d544db52d190e289a688183c69680b7c9fdeb459116d0a99a95185ad28474920
SHA512

2a1669975d10286ff8c6e158b318e1b5462b4cc8e5daaa435677409ea8f73e99cea7dc04b4d4b95b36c58ef4dee55ddc82009375effb9c7535ac113d26394bd1

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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/640-29-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral2/memory/640-30-0x000000000046364E-mapping.dmp	family_snakekeylogger

Executes dropped EXE 2 IoCs

Processes:

ron.exeInstallUtil.exe

pid process

2796 ron.exe
640 InstallUtil.exe
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
2796	ron.exe
640	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\bnye = "C:\\Users\\Admin\\ron.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 checkip.dyndns.org
22 freegeoip.app
23 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:

ron.exe

description pid process target process

PID 2796 set thread context of 640 2796 ron.exe InstallUtil.exe

flow	ioc
19	checkip.dyndns.org
22	freegeoip.app
23	freegeoip.app

description	pid	process	target process
PID 2796 set thread context of 640	2796	ron.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

55c92e2557966f31dcba970eb7566d5d.exeron.exeInstallUtil.exe

pid	process
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
504	55c92e2557966f31dcba970eb7566d5d.exe
2796	ron.exe
2796	ron.exe
640	InstallUtil.exe
640	InstallUtil.exe
640	InstallUtil.exe
640	InstallUtil.exe
640	InstallUtil.exe
640	InstallUtil.exe
640	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

55c92e2557966f31dcba970eb7566d5d.exeron.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	504	55c92e2557966f31dcba970eb7566d5d.exe
Token: SeDebugPrivilege	2796	ron.exe
Token: SeDebugPrivilege	640	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

55c92e2557966f31dcba970eb7566d5d.execmd.exeron.exe

description	pid	process	target process
PID 504 wrote to memory of 3244	504	55c92e2557966f31dcba970eb7566d5d.exe	cmd.exe
PID 504 wrote to memory of 3244	504	55c92e2557966f31dcba970eb7566d5d.exe	cmd.exe
PID 504 wrote to memory of 3244	504	55c92e2557966f31dcba970eb7566d5d.exe	cmd.exe
PID 3244 wrote to memory of 3796	3244	cmd.exe	reg.exe
PID 3244 wrote to memory of 3796	3244	cmd.exe	reg.exe
PID 3244 wrote to memory of 3796	3244	cmd.exe	reg.exe
PID 504 wrote to memory of 2796	504	55c92e2557966f31dcba970eb7566d5d.exe	ron.exe
PID 504 wrote to memory of 2796	504	55c92e2557966f31dcba970eb7566d5d.exe	ron.exe
PID 504 wrote to memory of 2796	504	55c92e2557966f31dcba970eb7566d5d.exe	ron.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe
PID 2796 wrote to memory of 640	2796	ron.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\55c92e2557966f31dcba970eb7566d5d.exe
"C:\Users\Admin\AppData\Local\Temp\55c92e2557966f31dcba970eb7566d5d.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:504

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "bnye" /t REG_SZ /d "C:\Users\Admin\ron.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3244

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "bnye" /t REG_SZ /d "C:\Users\Admin\ron.exe"
3⤵
- Adds Run key to start application
PID:3796

C:\Users\Admin\ron.exe
"C:\Users\Admin\ron.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796

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:640

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

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

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\ron.exe
MD5
55c92e2557966f31dcba970eb7566d5d

SHA1
ba3ebb374d99669f02ef8ead385f798ac8e648e1

SHA256
d544db52d190e289a688183c69680b7c9fdeb459116d0a99a95185ad28474920

SHA512
2a1669975d10286ff8c6e158b318e1b5462b4cc8e5daaa435677409ea8f73e99cea7dc04b4d4b95b36c58ef4dee55ddc82009375effb9c7535ac113d26394bd1

Download Submit
C:\Users\Admin\ron.exe
MD5
55c92e2557966f31dcba970eb7566d5d

SHA1
ba3ebb374d99669f02ef8ead385f798ac8e648e1

SHA256
d544db52d190e289a688183c69680b7c9fdeb459116d0a99a95185ad28474920

SHA512
2a1669975d10286ff8c6e158b318e1b5462b4cc8e5daaa435677409ea8f73e99cea7dc04b4d4b95b36c58ef4dee55ddc82009375effb9c7535ac113d26394bd1

Download Submit
memory/504-10-0x0000000008B70000-0x0000000008B71000-memory.dmp

Filesize
4KB

Download
memory/504-6-0x0000000005A00000-0x0000000005A01000-memory.dmp

Filesize
4KB

Download
memory/504-2-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/504-3-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/504-5-0x0000000005770000-0x0000000005771000-memory.dmp

Filesize
4KB

Download
memory/504-13-0x0000000005A01000-0x0000000005A02000-memory.dmp

Filesize
4KB

Download
memory/504-9-0x0000000003160000-0x0000000003161000-memory.dmp

Filesize
4KB

Download
memory/504-8-0x0000000001880000-0x000000000189E000-memory.dmp

Filesize
120KB

Download
memory/640-40-0x0000000005540000-0x0000000005541000-memory.dmp

Filesize
4KB

Download
memory/640-38-0x0000000006470000-0x0000000006471000-memory.dmp

Filesize
4KB

Download
memory/640-36-0x0000000005920000-0x0000000005921000-memory.dmp

Filesize
4KB

Download
memory/640-33-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/640-41-0x00000000063B0000-0x00000000063B1000-memory.dmp

Filesize
4KB

Download
memory/640-30-0x000000000046364E-mapping.dmp

Download
memory/640-29-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2796-14-0x0000000000000000-mapping.dmp

Download
memory/2796-28-0x0000000008800000-0x0000000008801000-memory.dmp

Filesize
4KB

Download
memory/2796-27-0x00000000087F0000-0x00000000087FB000-memory.dmp

Filesize
44KB

Download
memory/2796-26-0x0000000004C81000-0x0000000004C82000-memory.dmp

Filesize
4KB

Download
memory/2796-25-0x0000000004C80000-0x0000000004C81000-memory.dmp

Filesize
4KB

Download
memory/2796-17-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/3244-11-0x0000000000000000-mapping.dmp

Download
memory/3796-12-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads