snakekeylogger | 8acebab5908fc0c5a9bcfe1e2eab5ca37d31611851ad3ece3b7d33e5ca10d9d5

Analysis

max time kernel
121s
max time network
134s
platform
windows7_x64
resource
win7v20201028
submitted
20-01-2021 06:38

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General

Target

IMG_50781.doc
Size

653KB
MD5

a2ec2ec628ec74d805d04473ebbf10ca
SHA1

e8304efd667c65dabd0868f37ae6dc9deded1bd4
SHA256

8acebab5908fc0c5a9bcfe1e2eab5ca37d31611851ad3ece3b7d33e5ca10d9d5
SHA512

3558b79e70f0f09530fc76d304ac7fa96331f1d353014e6f21159edb5df2bc148becfd8e2446a431b8cd799988c58b876e49d0530d7804ca72ed39c4fe843eac

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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1216-37-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral1/memory/1216-38-0x000000000046372E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1216-41-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 1772 EQNEDT32.EXE
9 1772 EQNEDT32.EXE
Executes dropped EXE 3 IoCs

Processes:

69577.exempog.exeInstallUtil.exe

pid process

1148 69577.exe
996 mpog.exe
1216 InstallUtil.exe
Loads dropped DLL 3 IoCs

Processes:

EQNEDT32.EXE69577.exempog.exe

pid process

1772 EQNEDT32.EXE
1148 69577.exe
996 mpog.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

flow	pid	process
7	1772	EQNEDT32.EXE
9	1772	EQNEDT32.EXE

pid	process
1772	EQNEDT32.EXE
1148	69577.exe
996	mpog.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
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\snwy = "C:\\Users\\Admin\\mpog.exe"	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	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

10 checkip.dyndns.org
13 freegeoip.app
14 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

mpog.exe

description pid process target process

PID 996 set thread context of 1216 996 mpog.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

1772 EQNEDT32.EXE

flow	ioc
10	checkip.dyndns.org
13	freegeoip.app
14	freegeoip.app

description	pid	process	target process
PID 996 set thread context of 1216	996	mpog.exe	InstallUtil.exe

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

pid	process
1772	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
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
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
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 (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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

308 WINWORD.EXE

pid	process
308	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

69577.exempog.exeInstallUtil.exe

pid	process
1148	69577.exe
1148	69577.exe
1148	69577.exe
1148	69577.exe
1148	69577.exe
996	mpog.exe
996	mpog.exe
1216	InstallUtil.exe
1216	InstallUtil.exe
1216	InstallUtil.exe
1216	InstallUtil.exe
1216	InstallUtil.exe
1216	InstallUtil.exe
1216	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

69577.exempog.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1148 69577.exe
Token: SeDebugPrivilege 996 mpog.exe
Token: SeDebugPrivilege 1216 InstallUtil.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

308 WINWORD.EXE
308 WINWORD.EXE

description	pid	process
Token: SeDebugPrivilege	1148	69577.exe
Token: SeDebugPrivilege	996	mpog.exe
Token: SeDebugPrivilege	1216	InstallUtil.exe

pid	process
308	WINWORD.EXE
308	WINWORD.EXE

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

WINWORD.EXEEQNEDT32.EXE69577.execmd.exempog.exe

description	pid	process	target process
PID 308 wrote to memory of 1972	308	WINWORD.EXE	splwow64.exe
PID 308 wrote to memory of 1972	308	WINWORD.EXE	splwow64.exe
PID 308 wrote to memory of 1972	308	WINWORD.EXE	splwow64.exe
PID 308 wrote to memory of 1972	308	WINWORD.EXE	splwow64.exe
PID 1772 wrote to memory of 1148	1772	EQNEDT32.EXE	69577.exe
PID 1772 wrote to memory of 1148	1772	EQNEDT32.EXE	69577.exe
PID 1772 wrote to memory of 1148	1772	EQNEDT32.EXE	69577.exe
PID 1772 wrote to memory of 1148	1772	EQNEDT32.EXE	69577.exe
PID 1148 wrote to memory of 1764	1148	69577.exe	cmd.exe
PID 1148 wrote to memory of 1764	1148	69577.exe	cmd.exe
PID 1148 wrote to memory of 1764	1148	69577.exe	cmd.exe
PID 1148 wrote to memory of 1764	1148	69577.exe	cmd.exe
PID 1764 wrote to memory of 1116	1764	cmd.exe	reg.exe
PID 1764 wrote to memory of 1116	1764	cmd.exe	reg.exe
PID 1764 wrote to memory of 1116	1764	cmd.exe	reg.exe
PID 1764 wrote to memory of 1116	1764	cmd.exe	reg.exe
PID 1148 wrote to memory of 996	1148	69577.exe	mpog.exe
PID 1148 wrote to memory of 996	1148	69577.exe	mpog.exe
PID 1148 wrote to memory of 996	1148	69577.exe	mpog.exe
PID 1148 wrote to memory of 996	1148	69577.exe	mpog.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.exe	InstallUtil.exe
PID 996 wrote to memory of 1216	996	mpog.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\IMG_50781.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:308

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1972

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:1772

C:\Users\Public\69577.exe
"C:\Users\Public\69577.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "snwy" /t REG_SZ /d "C:\Users\Admin\mpog.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "snwy" /t REG_SZ /d "C:\Users\Admin\mpog.exe"
4⤵
- Adds Run key to start application
PID:1116

C:\Users\Admin\mpog.exe
"C:\Users\Admin\mpog.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:996

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:1216

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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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\AppData\Roaming\Microsoft\Windows\Cookies\TFOGES7J.txt
MD5
26f5edc0e3ffeedb069d8bbb654fc952

SHA1
46f709cb48adc769efd1f9199174b9607ca6fdf0

SHA256
9d12b866d0baf029cf9ffb1871da5b6f48a6f0dde6e7c8d9dcc152f2f442af0e

SHA512
5e0db234a9352f04b2b50c3af6a0b531d50d5cd6fdb85c96894779a0988cdf97797843d7eb0b8f3a8b91a340a03392817f311112663dce36726afeae8b542dda

Download Submit
C:\Users\Admin\mpog.exe
MD5
86b473ac3935c031354a80662a66e7c7

SHA1
e7a5d577953d8f573409bca306e2bdde5d9d6d69

SHA256
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585

SHA512
6ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82

Download Submit
C:\Users\Admin\mpog.exe
MD5
86b473ac3935c031354a80662a66e7c7

SHA1
e7a5d577953d8f573409bca306e2bdde5d9d6d69

SHA256
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585

SHA512
6ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82

Download Submit
C:\Users\Public\69577.exe
MD5
86b473ac3935c031354a80662a66e7c7

SHA1
e7a5d577953d8f573409bca306e2bdde5d9d6d69

SHA256
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585

SHA512
6ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82

Download Submit
C:\Users\Public\69577.exe
MD5
86b473ac3935c031354a80662a66e7c7

SHA1
e7a5d577953d8f573409bca306e2bdde5d9d6d69

SHA256
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585

SHA512
6ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82

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

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\mpog.exe
MD5
86b473ac3935c031354a80662a66e7c7

SHA1
e7a5d577953d8f573409bca306e2bdde5d9d6d69

SHA256
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585

SHA512
6ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82

Download Submit
\Users\Public\69577.exe
MD5
86b473ac3935c031354a80662a66e7c7

SHA1
e7a5d577953d8f573409bca306e2bdde5d9d6d69

SHA256
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585

SHA512
6ebbd305f906c912d75c969fec89f64fe258c986a8c4321656ff9a6ad82d49e22efe1e1397253af72003adcda6da50c0b32c1d47e19558eb14c8917da9361c82

Download Submit
memory/308-2-0x0000000072911000-0x0000000072914000-memory.dmp

Filesize
12KB

Download
memory/308-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/308-3-0x0000000070391000-0x0000000070393000-memory.dmp

Filesize
8KB

Download
memory/996-33-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

Filesize
4KB

Download
memory/996-32-0x0000000000A90000-0x0000000000A9B000-memory.dmp

Filesize
44KB

Download
memory/996-36-0x0000000004691000-0x0000000004692000-memory.dmp

Filesize
4KB

Download
memory/996-31-0x0000000004690000-0x0000000004691000-memory.dmp

Filesize
4KB

Download
memory/996-27-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/996-26-0x000000006B280000-0x000000006B96E000-memory.dmp

Filesize
6.9MB

Download
memory/996-23-0x0000000000000000-mapping.dmp

Download
memory/1116-20-0x0000000000000000-mapping.dmp

Download
memory/1148-18-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

Download
memory/1148-14-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/1148-13-0x000000006B280000-0x000000006B96E000-memory.dmp

Filesize
6.9MB

Download
memory/1148-21-0x0000000004EB1000-0x0000000004EB2000-memory.dmp

Filesize
4KB

Download
memory/1148-16-0x00000000006D0000-0x00000000006EE000-memory.dmp

Filesize
120KB

Download
memory/1148-17-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/1148-10-0x0000000000000000-mapping.dmp

Download
memory/1216-38-0x000000000046372E-mapping.dmp

Download
memory/1216-37-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1216-40-0x000000006AA30000-0x000000006B11E000-memory.dmp

Filesize
6.9MB

Download
memory/1216-41-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1216-43-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

Filesize
4KB

Download
memory/1708-8-0x000007FEF6400000-0x000007FEF667A000-memory.dmp

Filesize
2.5MB

Download
memory/1764-19-0x0000000000000000-mapping.dmp

Download
memory/1772-7-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1972-6-0x000007FEFBD61000-0x000007FEFBD63000-memory.dmp

Filesize
8KB

Download
memory/1972-5-0x0000000000000000-mapping.dmp

Download