snakekeylogger | 76706b5f29af8490c273d2d8d343ff2af85251ada3a1e1f2f43424b41f264310

Analysis

max time kernel
70s
max time network
136s
platform
windows7_x64
resource
win7v20201028
submitted
27-01-2021 18:01

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General

Target

Order_130577.doc.rtf
Size

644KB
MD5

ae67a37323bc9859fcbca3c54f04caa4
SHA1

5bc8504216505acd1318a21380f30646aef2b015
SHA256

76706b5f29af8490c273d2d8d343ff2af85251ada3a1e1f2f43424b41f264310
SHA512

10e564f9fa492c035a86157a6c0f7104b7e37a7a46c8a73523ead9285bf910d6b10390a724dbfd294e0debbc8a6087742e88aa16cab37a6aa8a5b82f9e6ba1be

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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1572-38-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger
behavioral1/memory/1572-39-0x0000000000463B7E-mapping.dmp	family_snakekeylogger
behavioral1/memory/1572-42-0x0000000000400000-0x0000000000468000-memory.dmp	family_snakekeylogger

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1796 EQNEDT32.EXE
8 1796 EQNEDT32.EXE
Executes dropped EXE 3 IoCs

Processes:

69577.exeoine.exeInstallUtil.exe

pid process

672 69577.exe
1624 oine.exe
1572 InstallUtil.exe
Loads dropped DLL 3 IoCs

Processes:

EQNEDT32.EXE69577.exeoine.exe

pid process

1796 EQNEDT32.EXE
672 69577.exe
1624 oine.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
6	1796	EQNEDT32.EXE
8	1796	EQNEDT32.EXE

pid	process
1796	EQNEDT32.EXE
672	69577.exe
1624	oine.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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\mny = "C:\\Users\\Admin\\oine.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

12 checkip.dyndns.org
15 freegeoip.app
16 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:

oine.exe

description pid process target process

PID 1624 set thread context of 1572 1624 oine.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

1796 EQNEDT32.EXE

flow	ioc
12	checkip.dyndns.org
15	freegeoip.app
16	freegeoip.app

description	pid	process	target process
PID 1624 set thread context of 1572	1624	oine.exe	InstallUtil.exe

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

pid	process
1796	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
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
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
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

1576 WINWORD.EXE

pid	process
1576	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

69577.exeoine.exeInstallUtil.exe

pid	process
672	69577.exe
672	69577.exe
672	69577.exe
672	69577.exe
672	69577.exe
1624	oine.exe
1624	oine.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe
1572	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

69577.exeoine.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 672 69577.exe
Token: SeDebugPrivilege 1624 oine.exe
Token: SeDebugPrivilege 1572 InstallUtil.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1576 WINWORD.EXE
1576 WINWORD.EXE

description	pid	process
Token: SeDebugPrivilege	672	69577.exe
Token: SeDebugPrivilege	1624	oine.exe
Token: SeDebugPrivilege	1572	InstallUtil.exe

pid	process
1576	WINWORD.EXE
1576	WINWORD.EXE

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

WINWORD.EXEEQNEDT32.EXE69577.execmd.exeoine.exe

description	pid	process	target process
PID 1576 wrote to memory of 1916	1576	WINWORD.EXE	splwow64.exe
PID 1576 wrote to memory of 1916	1576	WINWORD.EXE	splwow64.exe
PID 1576 wrote to memory of 1916	1576	WINWORD.EXE	splwow64.exe
PID 1576 wrote to memory of 1916	1576	WINWORD.EXE	splwow64.exe
PID 1796 wrote to memory of 672	1796	EQNEDT32.EXE	69577.exe
PID 1796 wrote to memory of 672	1796	EQNEDT32.EXE	69577.exe
PID 1796 wrote to memory of 672	1796	EQNEDT32.EXE	69577.exe
PID 1796 wrote to memory of 672	1796	EQNEDT32.EXE	69577.exe
PID 672 wrote to memory of 1620	672	69577.exe	cmd.exe
PID 672 wrote to memory of 1620	672	69577.exe	cmd.exe
PID 672 wrote to memory of 1620	672	69577.exe	cmd.exe
PID 672 wrote to memory of 1620	672	69577.exe	cmd.exe
PID 1620 wrote to memory of 1796	1620	cmd.exe	reg.exe
PID 1620 wrote to memory of 1796	1620	cmd.exe	reg.exe
PID 1620 wrote to memory of 1796	1620	cmd.exe	reg.exe
PID 1620 wrote to memory of 1796	1620	cmd.exe	reg.exe
PID 672 wrote to memory of 1624	672	69577.exe	oine.exe
PID 672 wrote to memory of 1624	672	69577.exe	oine.exe
PID 672 wrote to memory of 1624	672	69577.exe	oine.exe
PID 672 wrote to memory of 1624	672	69577.exe	oine.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.exe	InstallUtil.exe
PID 1624 wrote to memory of 1572	1624	oine.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\Order_130577.doc.rtf"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1576

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1916

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:1796

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:672

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "mny" /t REG_SZ /d "C:\Users\Admin\oine.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:1620

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "mny" /t REG_SZ /d "C:\Users\Admin\oine.exe"
4⤵
- Adds Run key to start application
PID:1796

C:\Users\Admin\oine.exe
"C:\Users\Admin\oine.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1624

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:1572

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

System Information Discovery

T1082

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\A5RE7PV5.txt
MD5
3765cae19c229afc7cefbea18d1d33d6

SHA1
0c34b31d43a3dbcc3c3a6efa5d392f7c8433a9af

SHA256
837096cf4b08e97ac43d72ead3ec816abb3d40e1a3cff28a3569fac2fd03bab3

SHA512
b06a468ef516b7cc2f1be6c8e523ee5b3ea1c454819c5aa385183339a43912c7f8b7c613b9ec02fac4e76fbd644cd8a4a63af684feb58791add05727fb357988

Download Submit
C:\Users\Admin\oine.exe
MD5
1d12ee8fc26153c32db34d0419bdd665

SHA1
4d7859d15ece702c7c159e3c651888d9e1506ce9

SHA256
6a03b5abdbbe7bd614645b2619977d1a278d1411bf3fe26ab8d260ccb95d9748

SHA512
a72fb3ba01cb8aeb62dad6c71ba0b10900ae6eee5c20191b7f75c57ece7f99b2353c2f1d75360b6e3c1342e7c0009a128b5f8420e257b5ec9ed1dab1473243bd

Download Submit
C:\Users\Admin\oine.exe
MD5
1d12ee8fc26153c32db34d0419bdd665

SHA1
4d7859d15ece702c7c159e3c651888d9e1506ce9

SHA256
6a03b5abdbbe7bd614645b2619977d1a278d1411bf3fe26ab8d260ccb95d9748

SHA512
a72fb3ba01cb8aeb62dad6c71ba0b10900ae6eee5c20191b7f75c57ece7f99b2353c2f1d75360b6e3c1342e7c0009a128b5f8420e257b5ec9ed1dab1473243bd

Download Submit
C:\Users\Public\69577.exe
MD5
1d12ee8fc26153c32db34d0419bdd665

SHA1
4d7859d15ece702c7c159e3c651888d9e1506ce9

SHA256
6a03b5abdbbe7bd614645b2619977d1a278d1411bf3fe26ab8d260ccb95d9748

SHA512
a72fb3ba01cb8aeb62dad6c71ba0b10900ae6eee5c20191b7f75c57ece7f99b2353c2f1d75360b6e3c1342e7c0009a128b5f8420e257b5ec9ed1dab1473243bd

Download Submit
C:\Users\Public\69577.exe
MD5
1d12ee8fc26153c32db34d0419bdd665

SHA1
4d7859d15ece702c7c159e3c651888d9e1506ce9

SHA256
6a03b5abdbbe7bd614645b2619977d1a278d1411bf3fe26ab8d260ccb95d9748

SHA512
a72fb3ba01cb8aeb62dad6c71ba0b10900ae6eee5c20191b7f75c57ece7f99b2353c2f1d75360b6e3c1342e7c0009a128b5f8420e257b5ec9ed1dab1473243bd

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

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\oine.exe
MD5
1d12ee8fc26153c32db34d0419bdd665

SHA1
4d7859d15ece702c7c159e3c651888d9e1506ce9

SHA256
6a03b5abdbbe7bd614645b2619977d1a278d1411bf3fe26ab8d260ccb95d9748

SHA512
a72fb3ba01cb8aeb62dad6c71ba0b10900ae6eee5c20191b7f75c57ece7f99b2353c2f1d75360b6e3c1342e7c0009a128b5f8420e257b5ec9ed1dab1473243bd

Download Submit
\Users\Public\69577.exe
MD5
1d12ee8fc26153c32db34d0419bdd665

SHA1
4d7859d15ece702c7c159e3c651888d9e1506ce9

SHA256
6a03b5abdbbe7bd614645b2619977d1a278d1411bf3fe26ab8d260ccb95d9748

SHA512
a72fb3ba01cb8aeb62dad6c71ba0b10900ae6eee5c20191b7f75c57ece7f99b2353c2f1d75360b6e3c1342e7c0009a128b5f8420e257b5ec9ed1dab1473243bd

Download Submit
memory/400-8-0x000007FEF6780000-0x000007FEF69FA000-memory.dmp

Filesize
2.5MB

Download
memory/672-22-0x00000000046C1000-0x00000000046C2000-memory.dmp

Filesize
4KB

Download
memory/672-16-0x00000000046C0000-0x00000000046C1000-memory.dmp

Filesize
4KB

Download
memory/672-18-0x0000000000530000-0x000000000054E000-memory.dmp

Filesize
120KB

Download
memory/672-19-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/672-14-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/672-13-0x000000006B620000-0x000000006BD0E000-memory.dmp

Filesize
6.9MB

Download
memory/672-10-0x0000000000000000-mapping.dmp

Download
memory/1572-38-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1572-44-0x0000000004D30000-0x0000000004D31000-memory.dmp

Filesize
4KB

Download
memory/1572-42-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1572-41-0x000000006B620000-0x000000006BD0E000-memory.dmp

Filesize
6.9MB

Download
memory/1572-39-0x0000000000463B7E-mapping.dmp

Download
memory/1576-2-0x0000000072C01000-0x0000000072C04000-memory.dmp

Filesize
12KB

Download
memory/1576-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1576-3-0x0000000070681000-0x0000000070683000-memory.dmp

Filesize
8KB

Download
memory/1620-20-0x0000000000000000-mapping.dmp

Download
memory/1624-27-0x000000006B620000-0x000000006BD0E000-memory.dmp

Filesize
6.9MB

Download
memory/1624-28-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/1624-35-0x0000000004780000-0x0000000004781000-memory.dmp

Filesize
4KB

Download
memory/1624-24-0x0000000000000000-mapping.dmp

Download
memory/1624-34-0x0000000004720000-0x000000000472B000-memory.dmp

Filesize
44KB

Download
memory/1624-30-0x0000000004F20000-0x0000000004F21000-memory.dmp

Filesize
4KB

Download
memory/1796-7-0x0000000075A41000-0x0000000075A43000-memory.dmp

Filesize
8KB

Download
memory/1796-21-0x0000000000000000-mapping.dmp

Download
memory/1916-6-0x000007FEFC101000-0x000007FEFC103000-memory.dmp

Filesize
8KB

Download
memory/1916-5-0x0000000000000000-mapping.dmp

Download