snakekeylogger | 1c981a1151b65e165e40445bae864206974e22c517aa7e3bfc44cafd3ac77062

Analysis

max time kernel
70s
max time network
139s
platform
windows7_x64
resource
win7v20201028
submitted
28-01-2021 15:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Purchase Order No. 3109 Dated 28.01.2021.doc
Size

1.6MB
MD5

028d561f0f1c0672747fb62cbbc047d7
SHA1

dafeae198cb24d63b614833c584b7c6ee1d82892
SHA256

1c981a1151b65e165e40445bae864206974e22c517aa7e3bfc44cafd3ac77062
SHA512

87b76c26989cb0875d8fc503f8ab29a09552ff87d7f910ba173a7f865946713eddc510dcd2ddfcae45863afdddf8f461189c8e87ed0e1bf1a1cd6788bd9bcba0

Score

10^/10

snakekeylogger keylogger 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/1560-36-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral1/memory/1560-37-0x000000000046370E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1560-40-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 1744 EQNEDT32.EXE
9 1744 EQNEDT32.EXE
Executes dropped EXE 3 IoCs

Processes:

69577.exeomsu.exeInstallUtil.exe

pid process

924 69577.exe
292 omsu.exe
1560 InstallUtil.exe
Drops startup file 1 IoCs

Processes:

69577.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\omsu.lnk 69577.exe
Loads dropped DLL 3 IoCs

Processes:

EQNEDT32.EXE69577.exeomsu.exe

pid process

1744 EQNEDT32.EXE
924 69577.exe
292 omsu.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
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

13 checkip.dyndns.org
16 freegeoip.app
17 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:

omsu.exe

description pid process target process

PID 292 set thread context of 1560 292 omsu.exe InstallUtil.exe
Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1744 EQNEDT32.EXE

flow	pid	process
7	1744	EQNEDT32.EXE
9	1744	EQNEDT32.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\omsu.lnk	69577.exe

pid	process
1744	EQNEDT32.EXE
924	69577.exe
292	omsu.exe

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

description	pid	process	target process
PID 292 set thread context of 1560	292	omsu.exe	InstallUtil.exe

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

pid	process
1744	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

744 WINWORD.EXE

pid	process
744	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

69577.exeomsu.exeInstallUtil.exe

pid	process
924	69577.exe
924	69577.exe
924	69577.exe
924	69577.exe
924	69577.exe
292	omsu.exe
292	omsu.exe
1560	InstallUtil.exe
1560	InstallUtil.exe
1560	InstallUtil.exe
1560	InstallUtil.exe
1560	InstallUtil.exe
1560	InstallUtil.exe
1560	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

69577.exeomsu.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 924 69577.exe
Token: SeDebugPrivilege 292 omsu.exe
Token: SeDebugPrivilege 1560 InstallUtil.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

744 WINWORD.EXE
744 WINWORD.EXE

description	pid	process
Token: SeDebugPrivilege	924	69577.exe
Token: SeDebugPrivilege	292	omsu.exe
Token: SeDebugPrivilege	1560	InstallUtil.exe

pid	process
744	WINWORD.EXE
744	WINWORD.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

WINWORD.EXEEQNEDT32.EXE69577.exeomsu.exe

description	pid	process	target process
PID 744 wrote to memory of 1232	744	WINWORD.EXE	splwow64.exe
PID 744 wrote to memory of 1232	744	WINWORD.EXE	splwow64.exe
PID 744 wrote to memory of 1232	744	WINWORD.EXE	splwow64.exe
PID 744 wrote to memory of 1232	744	WINWORD.EXE	splwow64.exe
PID 1744 wrote to memory of 924	1744	EQNEDT32.EXE	69577.exe
PID 1744 wrote to memory of 924	1744	EQNEDT32.EXE	69577.exe
PID 1744 wrote to memory of 924	1744	EQNEDT32.EXE	69577.exe
PID 1744 wrote to memory of 924	1744	EQNEDT32.EXE	69577.exe
PID 924 wrote to memory of 292	924	69577.exe	omsu.exe
PID 924 wrote to memory of 292	924	69577.exe	omsu.exe
PID 924 wrote to memory of 292	924	69577.exe	omsu.exe
PID 924 wrote to memory of 292	924	69577.exe	omsu.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe
PID 292 wrote to memory of 1560	292	omsu.exe	InstallUtil.exe

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Purchase Order No. 3109 Dated 28.01.2021.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:744

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1232

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1744

C:\Users\Public\69577.exe
"C:\Users\Public\69577.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:924

C:\Users\Admin\omsu.exe
"C:\Users\Admin\omsu.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:292

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1560

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

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\AppData\Roaming\Microsoft\Windows\Cookies\ULY3FRV4.txt
MD5
f76e400bbe09c431f039433055612449

SHA1
c85ae47c15fc6562126d1caa4977526e5eb79125

SHA256
236b0a99c2acbe26c1ae05527cca4e3141449e0e36aa42eba7e8c9654589fa87

SHA512
537757d1b8fc0bb985d473fd9d18a7aacc58c07e9cc6a1983e4090f3d3db3bcec5294b5249907a5ebdda9b4e7a064555cbe5c129dc8358fc3c5c282f1d537cb9

Download Submit
C:\Users\Admin\omsu.exe
MD5
263f0b35e5768e624a84ac122bbf6a8c

SHA1
53b6283cf3fe925f008ff5e75bb9f59ec115e0db

SHA256
37ba2407fcedfb820ba97763e2fb4799604a7085a60d48f69de9583fe87eb9f3

SHA512
3cc99c5e89bc9443fb78e7ffd09efd5bd846fde48cbbbaf2ef4ff41f39a393b3e5660f74117113f9dee9540a1c5f4ba07e54d17790eda1375c13af3ddcfe4fa1

Download Submit
C:\Users\Admin\omsu.exe
MD5
263f0b35e5768e624a84ac122bbf6a8c

SHA1
53b6283cf3fe925f008ff5e75bb9f59ec115e0db

SHA256
37ba2407fcedfb820ba97763e2fb4799604a7085a60d48f69de9583fe87eb9f3

SHA512
3cc99c5e89bc9443fb78e7ffd09efd5bd846fde48cbbbaf2ef4ff41f39a393b3e5660f74117113f9dee9540a1c5f4ba07e54d17790eda1375c13af3ddcfe4fa1

Download Submit
C:\Users\Public\69577.exe
MD5
263f0b35e5768e624a84ac122bbf6a8c

SHA1
53b6283cf3fe925f008ff5e75bb9f59ec115e0db

SHA256
37ba2407fcedfb820ba97763e2fb4799604a7085a60d48f69de9583fe87eb9f3

SHA512
3cc99c5e89bc9443fb78e7ffd09efd5bd846fde48cbbbaf2ef4ff41f39a393b3e5660f74117113f9dee9540a1c5f4ba07e54d17790eda1375c13af3ddcfe4fa1

Download Submit
C:\Users\Public\69577.exe
MD5
263f0b35e5768e624a84ac122bbf6a8c

SHA1
53b6283cf3fe925f008ff5e75bb9f59ec115e0db

SHA256
37ba2407fcedfb820ba97763e2fb4799604a7085a60d48f69de9583fe87eb9f3

SHA512
3cc99c5e89bc9443fb78e7ffd09efd5bd846fde48cbbbaf2ef4ff41f39a393b3e5660f74117113f9dee9540a1c5f4ba07e54d17790eda1375c13af3ddcfe4fa1

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\omsu.exe
MD5
263f0b35e5768e624a84ac122bbf6a8c

SHA1
53b6283cf3fe925f008ff5e75bb9f59ec115e0db

SHA256
37ba2407fcedfb820ba97763e2fb4799604a7085a60d48f69de9583fe87eb9f3

SHA512
3cc99c5e89bc9443fb78e7ffd09efd5bd846fde48cbbbaf2ef4ff41f39a393b3e5660f74117113f9dee9540a1c5f4ba07e54d17790eda1375c13af3ddcfe4fa1

Download Submit
\Users\Public\69577.exe
MD5
263f0b35e5768e624a84ac122bbf6a8c

SHA1
53b6283cf3fe925f008ff5e75bb9f59ec115e0db

SHA256
37ba2407fcedfb820ba97763e2fb4799604a7085a60d48f69de9583fe87eb9f3

SHA512
3cc99c5e89bc9443fb78e7ffd09efd5bd846fde48cbbbaf2ef4ff41f39a393b3e5660f74117113f9dee9540a1c5f4ba07e54d17790eda1375c13af3ddcfe4fa1

Download Submit
memory/292-25-0x000000006B200000-0x000000006B8EE000-memory.dmp

Filesize
6.9MB

Download
memory/292-33-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/292-32-0x0000000000600000-0x000000000060B000-memory.dmp

Filesize
44KB

Download
memory/292-31-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

Filesize
4KB

Download
memory/292-26-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/292-22-0x0000000000000000-mapping.dmp

Download
memory/744-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/744-2-0x0000000072741000-0x0000000072744000-memory.dmp

Filesize
12KB

Download
memory/744-3-0x00000000701C1000-0x00000000701C3000-memory.dmp

Filesize
8KB

Download
memory/880-8-0x000007FEF62A0000-0x000007FEF651A000-memory.dmp

Filesize
2.5MB

Download
memory/924-10-0x0000000000000000-mapping.dmp

Download
memory/924-20-0x0000000004F11000-0x0000000004F12000-memory.dmp

Filesize
4KB

Download
memory/924-19-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/924-18-0x0000000000630000-0x000000000064E000-memory.dmp

Filesize
120KB

Download
memory/924-16-0x0000000004F10000-0x0000000004F11000-memory.dmp

Filesize
4KB

Download
memory/924-14-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/924-13-0x000000006B200000-0x000000006B8EE000-memory.dmp

Filesize
6.9MB

Download
memory/1232-6-0x000007FEFBC41000-0x000007FEFBC43000-memory.dmp

Filesize
8KB

Download
memory/1232-5-0x0000000000000000-mapping.dmp

Download
memory/1560-36-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1560-37-0x000000000046370E-mapping.dmp

Download
memory/1560-39-0x000000006B200000-0x000000006B8EE000-memory.dmp

Filesize
6.9MB

Download
memory/1560-40-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1560-42-0x0000000004B10000-0x0000000004B11000-memory.dmp

Filesize
4KB

Download
memory/1744-7-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download