snakekeylogger | c527b03caf1b11138845e12a19b81ccdbc2f50f69c52e249d44652050cc30fa1

General

Target

FedEx 772584418730.doc.rtf
Size

504KB
MD5

7aeebfb82be46c7753fce4382115b326
SHA1

e207226193a25f6eb8011accaed451d9156924ff
SHA256

c527b03caf1b11138845e12a19b81ccdbc2f50f69c52e249d44652050cc30fa1
SHA512

7b509f3b3791b5da8ec1f73c04e72d7c048c6e90df21d3792b4725d3422b30785f8be0e52f35471f271f3b25edddeb6ecf4b81334afd964f8c7964107f53d7eb

Score

10^/10

snakekeylogger keylogger 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/1568-23-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral1/memory/1568-24-0x000000000046364E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1568-28-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1628 EQNEDT32.EXE
8 1628 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

69577.exeInstallUtil.exe

pid process

304 69577.exe
1568 InstallUtil.exe
Loads dropped DLL 2 IoCs

Processes:

EQNEDT32.EXE69577.exe

pid process

1628 EQNEDT32.EXE
304 69577.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
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 freegeoip.app
9 checkip.dyndns.org
12 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

69577.exe

description pid process target process

PID 304 set thread context of 1568 304 69577.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

1628 EQNEDT32.EXE

flow	pid	process
6	1628	EQNEDT32.EXE
8	1628	EQNEDT32.EXE

pid	process
1628	EQNEDT32.EXE
304	69577.exe

flow	ioc
13	freegeoip.app
9	checkip.dyndns.org
12	freegeoip.app

description	pid	process	target process
PID 304 set thread context of 1568	304	69577.exe	InstallUtil.exe

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

pid	process
1628	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\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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 (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 (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

1068 WINWORD.EXE

pid	process
1068	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

69577.exeInstallUtil.exe

pid	process
304	69577.exe
304	69577.exe
1568	InstallUtil.exe
1568	InstallUtil.exe
1568	InstallUtil.exe
1568	InstallUtil.exe
1568	InstallUtil.exe
1568	InstallUtil.exe
1568	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

69577.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 304 69577.exe
Token: SeDebugPrivilege 1568 InstallUtil.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1068 WINWORD.EXE
1068 WINWORD.EXE

description	pid	process
Token: SeDebugPrivilege	304	69577.exe
Token: SeDebugPrivilege	1568	InstallUtil.exe

pid	process
1068	WINWORD.EXE
1068	WINWORD.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

WINWORD.EXEEQNEDT32.EXE69577.exe

description	pid	process	target process
PID 1068 wrote to memory of 1244	1068	WINWORD.EXE	splwow64.exe
PID 1068 wrote to memory of 1244	1068	WINWORD.EXE	splwow64.exe
PID 1068 wrote to memory of 1244	1068	WINWORD.EXE	splwow64.exe
PID 1068 wrote to memory of 1244	1068	WINWORD.EXE	splwow64.exe
PID 1628 wrote to memory of 304	1628	EQNEDT32.EXE	69577.exe
PID 1628 wrote to memory of 304	1628	EQNEDT32.EXE	69577.exe
PID 1628 wrote to memory of 304	1628	EQNEDT32.EXE	69577.exe
PID 1628 wrote to memory of 304	1628	EQNEDT32.EXE	69577.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.exe	InstallUtil.exe
PID 304 wrote to memory of 1568	304	69577.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\FedEx 772584418730.doc.rtf"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1244

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:1628

C:\Users\Public\69577.exe
"C:\Users\Public\69577.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:304

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:1568

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

2

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\RMS5IVG6.txt
MD5
107396ca5ccf6625cc8c257a513896a4

SHA1
7a130a6612eb778d7affd15db6e8d824560b02f6

SHA256
903b9e90ec76335fea83ff591ab26000cae611318f38c250828f9855556172fe

SHA512
c1eb10b22e7658d4181b3251867d61d4cb5e51e65a1210facb85001413a8520733e1512cacc826d3e4078a525b4fdcec161bd38311f0f86ea2b5630acac195fe

Download Submit
C:\Users\Public\69577.exe
MD5
b47f9debd444eacd67ee09f892a25329

SHA1
d5a54558cfe679ed97615acc6b0e114854a292c6

SHA256
2bffb59c94e38a0b9c564111115dd3bf5d9f333dc1554d308722637d9f88cdf1

SHA512
1f59adc8b1876966c50d49b89802ec21935bcc6e8061f043ac67a0d79a93f678869031889447b539ad8d4649705670d9c5fcd17a0fcd178953a76de370d64841

Download Submit
C:\Users\Public\69577.exe
MD5
b47f9debd444eacd67ee09f892a25329

SHA1
d5a54558cfe679ed97615acc6b0e114854a292c6

SHA256
2bffb59c94e38a0b9c564111115dd3bf5d9f333dc1554d308722637d9f88cdf1

SHA512
1f59adc8b1876966c50d49b89802ec21935bcc6e8061f043ac67a0d79a93f678869031889447b539ad8d4649705670d9c5fcd17a0fcd178953a76de370d64841

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

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Public\69577.exe
MD5
b47f9debd444eacd67ee09f892a25329

SHA1
d5a54558cfe679ed97615acc6b0e114854a292c6

SHA256
2bffb59c94e38a0b9c564111115dd3bf5d9f333dc1554d308722637d9f88cdf1

SHA512
1f59adc8b1876966c50d49b89802ec21935bcc6e8061f043ac67a0d79a93f678869031889447b539ad8d4649705670d9c5fcd17a0fcd178953a76de370d64841

Download Submit
memory/272-8-0x000007FEF77D0000-0x000007FEF7A4A000-memory.dmp

Filesize
2.5MB

Download
memory/304-20-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

Filesize
4KB

Download
memory/304-10-0x0000000000000000-mapping.dmp

Download
memory/304-19-0x0000000000580000-0x000000000058B000-memory.dmp

Filesize
44KB

Download
memory/304-13-0x000000006B440000-0x000000006BB2E000-memory.dmp

Filesize
6.9MB

Download
memory/304-14-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/304-16-0x0000000000310000-0x000000000032E000-memory.dmp

Filesize
120KB

Download
memory/304-18-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/304-17-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

Filesize
4KB

Download
memory/304-22-0x0000000004AC1000-0x0000000004AC2000-memory.dmp

Filesize
4KB

Download
memory/1068-3-0x0000000070401000-0x0000000070403000-memory.dmp

Filesize
8KB

Download
memory/1068-2-0x0000000072981000-0x0000000072984000-memory.dmp

Filesize
12KB

Download
memory/1068-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1244-5-0x0000000000000000-mapping.dmp

Download
memory/1244-6-0x000007FEFBE81000-0x000007FEFBE83000-memory.dmp

Filesize
8KB

Download
memory/1568-23-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1568-24-0x000000000046364E-mapping.dmp

Download
memory/1568-28-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1568-27-0x000000006B440000-0x000000006BB2E000-memory.dmp

Filesize
6.9MB

Download
memory/1568-31-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

Filesize
4KB

Download
memory/1628-7-0x00000000756C1000-0x00000000756C3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads