masslogger | 14836e19f657b3a82b1f58dfb846ff1eb66f72ea7eb9b840c2de4b2ceeddcddd

General

Target

OOCLU57731000013.xls.exe
Size

892KB
MD5

7c3df39bc1a99d5b392330206083461b
SHA1

7f60f5dc06d5f4a91d606312747bbc770226bbb3
SHA256

14836e19f657b3a82b1f58dfb846ff1eb66f72ea7eb9b840c2de4b2ceeddcddd
SHA512

3cab1494e1a137045c0b7eb005c169fb56b26efc7754b80ff44090502c11a4f96d36b0bd403cc309e0b9fca4220bad4cdcaa8b6905483fbb9d4ec000964c9985

Score

10^/10

masslogger spyware stealer

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3956-11-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral2/memory/3956-12-0x000000000048149E-mapping.dmp	family_masslogger
behavioral2/memory/1280-66-0x000000000048149E-mapping.dmp	family_masslogger

Executes dropped EXE 2 IoCs

Processes:

nslookup.exenslookup.exe

pid process

1480 nslookup.exe
1280 nslookup.exe

pid	process
1480	nslookup.exe
1280	nslookup.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

OOCLU57731000013.xls.exenslookup.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation	OOCLU57731000013.xls.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation	nslookup.exe

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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

20 api.ipify.org
22 api.ipify.org

flow	ioc
20	api.ipify.org
22	api.ipify.org

Suspicious use of SetThreadContext 2 IoCs

Processes:

OOCLU57731000013.xls.exenslookup.exe

description	pid	process	target process
PID 4648 set thread context of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 1480 set thread context of 1280	1480	nslookup.exe	nslookup.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

996 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

852 timeout.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

nslookup.exe

pid process

1280 nslookup.exe

pid	process
996	schtasks.exe

pid	process
852	timeout.exe

pid	process
1280	nslookup.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

OOCLU57731000013.xls.exepowershell.exenslookup.exepowershell.exe

pid	process
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
3956	OOCLU57731000013.xls.exe
1868	powershell.exe
1868	powershell.exe
1868	powershell.exe
1280	nslookup.exe
1280	nslookup.exe
1280	nslookup.exe
1280	nslookup.exe
2608	powershell.exe
2608	powershell.exe
2608	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

OOCLU57731000013.xls.exepowershell.exenslookup.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3956	OOCLU57731000013.xls.exe
Token: SeDebugPrivilege	1868	powershell.exe
Token: SeDebugPrivilege	1280	nslookup.exe
Token: SeDebugPrivilege	2608	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

nslookup.exe

pid process

1280 nslookup.exe

pid	process
1280	nslookup.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

OOCLU57731000013.xls.exeOOCLU57731000013.xls.execmd.execmd.exenslookup.exenslookup.exe

description	pid	process	target process
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 4648 wrote to memory of 3956	4648	OOCLU57731000013.xls.exe	OOCLU57731000013.xls.exe
PID 3956 wrote to memory of 1868	3956	OOCLU57731000013.xls.exe	powershell.exe
PID 3956 wrote to memory of 1868	3956	OOCLU57731000013.xls.exe	powershell.exe
PID 3956 wrote to memory of 1868	3956	OOCLU57731000013.xls.exe	powershell.exe
PID 3956 wrote to memory of 4436	3956	OOCLU57731000013.xls.exe	cmd.exe
PID 3956 wrote to memory of 4436	3956	OOCLU57731000013.xls.exe	cmd.exe
PID 3956 wrote to memory of 4436	3956	OOCLU57731000013.xls.exe	cmd.exe
PID 3956 wrote to memory of 4416	3956	OOCLU57731000013.xls.exe	cmd.exe
PID 3956 wrote to memory of 4416	3956	OOCLU57731000013.xls.exe	cmd.exe
PID 3956 wrote to memory of 4416	3956	OOCLU57731000013.xls.exe	cmd.exe
PID 4416 wrote to memory of 852	4416	cmd.exe	timeout.exe
PID 4416 wrote to memory of 852	4416	cmd.exe	timeout.exe
PID 4416 wrote to memory of 852	4416	cmd.exe	timeout.exe
PID 4436 wrote to memory of 996	4436	cmd.exe	schtasks.exe
PID 4436 wrote to memory of 996	4436	cmd.exe	schtasks.exe
PID 4436 wrote to memory of 996	4436	cmd.exe	schtasks.exe
PID 4416 wrote to memory of 1480	4416	cmd.exe	nslookup.exe
PID 4416 wrote to memory of 1480	4416	cmd.exe	nslookup.exe
PID 4416 wrote to memory of 1480	4416	cmd.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1480 wrote to memory of 1280	1480	nslookup.exe	nslookup.exe
PID 1280 wrote to memory of 2608	1280	nslookup.exe	powershell.exe
PID 1280 wrote to memory of 2608	1280	nslookup.exe	powershell.exe
PID 1280 wrote to memory of 2608	1280	nslookup.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\OOCLU57731000013.xls.exe
"C:\Users\Admin\AppData\Local\Temp\OOCLU57731000013.xls.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4648

C:\Users\Admin\AppData\Local\Temp\OOCLU57731000013.xls.exe
"{path}"
2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3956

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\OOCLU57731000013.xls.exe'
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1868

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn nslookup.exe /tr '"C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe"' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:4436

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn nslookup.exe /tr '"C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe"'
4⤵
- Creates scheduled task(s)
PID:996

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3A5A.tmp.bat""
3⤵
- Suspicious use of WriteProcessMemory
PID:4416

C:\Windows\SysWOW64\timeout.exe
timeout 3
4⤵
- Delays execution with timeout.exe
PID:852

C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe
"C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1480

C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe
"{path}"
5⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1280

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe'
6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2608

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OOCLU57731000013.xls.exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\nslookup.exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
MD5
1c19c16e21c97ed42d5beabc93391fc5

SHA1
8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

SHA256
1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

SHA512
7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
769b5c4eeb60575e1ca180944908df1f

SHA1
5184105a0b15e2de71c6792c7aea818acfae336f

SHA256
c63b9fb0a840fb3a097bd41e9d99fa52e64aa704f3ee6569027bb02779f623eb

SHA512
0241e1589e1448e982f673fdc555dafe29955953e966291fd2407bf128b5a6cfdbd2b2833a4c2804bed9d4c4cd47f8673e20f63d0bf76122dfe0e86c80f45a16

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3A5A.tmp.bat
MD5
40146b5c0ace3494d0564b5cbe84c23c

SHA1
376bad085414544ebda348be39f899f6f65ae201

SHA256
95601ae86cc41b44f770274ef383a93c2d02f0f91a11eef09a65cff3f7a83167

SHA512
909178ffbea3048135099c38c6f5768a4973232697e983b1520f0107fb369a5e6f560998cc03a3d969318f428d68d009cda78527417dca1476408345e084c582

Download Submit
C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe
MD5
7c3df39bc1a99d5b392330206083461b

SHA1
7f60f5dc06d5f4a91d606312747bbc770226bbb3

SHA256
14836e19f657b3a82b1f58dfb846ff1eb66f72ea7eb9b840c2de4b2ceeddcddd

SHA512
3cab1494e1a137045c0b7eb005c169fb56b26efc7754b80ff44090502c11a4f96d36b0bd403cc309e0b9fca4220bad4cdcaa8b6905483fbb9d4ec000964c9985

Download Submit
C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe
MD5
7c3df39bc1a99d5b392330206083461b

SHA1
7f60f5dc06d5f4a91d606312747bbc770226bbb3

SHA256
14836e19f657b3a82b1f58dfb846ff1eb66f72ea7eb9b840c2de4b2ceeddcddd

SHA512
3cab1494e1a137045c0b7eb005c169fb56b26efc7754b80ff44090502c11a4f96d36b0bd403cc309e0b9fca4220bad4cdcaa8b6905483fbb9d4ec000964c9985

Download Submit
C:\Users\Admin\AppData\Roaming\vilan\nslookup.exe
MD5
7c3df39bc1a99d5b392330206083461b

SHA1
7f60f5dc06d5f4a91d606312747bbc770226bbb3

SHA256
14836e19f657b3a82b1f58dfb846ff1eb66f72ea7eb9b840c2de4b2ceeddcddd

SHA512
3cab1494e1a137045c0b7eb005c169fb56b26efc7754b80ff44090502c11a4f96d36b0bd403cc309e0b9fca4220bad4cdcaa8b6905483fbb9d4ec000964c9985

Download Submit
memory/852-32-0x0000000000000000-mapping.dmp

Download
memory/996-33-0x0000000000000000-mapping.dmp

Download
memory/1280-66-0x000000000048149E-mapping.dmp

Download
memory/1280-69-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/1280-77-0x0000000007220000-0x0000000007221000-memory.dmp

Filesize
4KB

Download
memory/1480-49-0x0000000000000000-mapping.dmp

Download
memory/1480-48-0x0000000000000000-mapping.dmp

Download
memory/1480-52-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/1868-31-0x00000000080A0000-0x00000000080A1000-memory.dmp

Filesize
4KB

Download
memory/1868-36-0x00000000086A0000-0x00000000086A1000-memory.dmp

Filesize
4KB

Download
memory/1868-62-0x0000000009990000-0x0000000009991000-memory.dmp

Filesize
4KB

Download
memory/1868-27-0x0000000007690000-0x0000000007691000-memory.dmp

Filesize
4KB

Download
memory/1868-28-0x0000000007730000-0x0000000007731000-memory.dmp

Filesize
4KB

Download
memory/1868-24-0x0000000007970000-0x0000000007971000-memory.dmp

Filesize
4KB

Download
memory/1868-23-0x0000000003460000-0x0000000003461000-memory.dmp

Filesize
4KB

Download
memory/1868-20-0x0000000000000000-mapping.dmp

Download
memory/1868-22-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/1868-34-0x0000000007830000-0x0000000007831000-memory.dmp

Filesize
4KB

Download
memory/1868-35-0x0000000008810000-0x0000000008811000-memory.dmp

Filesize
4KB

Download
memory/1868-60-0x00000000099B0000-0x00000000099B1000-memory.dmp

Filesize
4KB

Download
memory/1868-38-0x0000000009720000-0x0000000009753000-memory.dmp

Filesize
204KB

Download
memory/1868-45-0x00000000094C0000-0x00000000094C1000-memory.dmp

Filesize
4KB

Download
memory/1868-46-0x0000000009850000-0x0000000009851000-memory.dmp

Filesize
4KB

Download
memory/1868-47-0x0000000009A50000-0x0000000009A51000-memory.dmp

Filesize
4KB

Download
memory/2608-89-0x0000000008D20000-0x0000000008D21000-memory.dmp

Filesize
4KB

Download
memory/2608-86-0x0000000008360000-0x0000000008361000-memory.dmp

Filesize
4KB

Download
memory/2608-80-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/2608-75-0x0000000000000000-mapping.dmp

Download
memory/2608-100-0x0000000009C70000-0x0000000009C71000-memory.dmp

Filesize
4KB

Download
memory/3956-19-0x0000000006840000-0x0000000006841000-memory.dmp

Filesize
4KB

Download
memory/3956-12-0x000000000048149E-mapping.dmp

Download
memory/3956-11-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/3956-14-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/4416-26-0x0000000000000000-mapping.dmp

Download
memory/4436-25-0x0000000000000000-mapping.dmp

Download
memory/4648-8-0x0000000008D00000-0x0000000008D01000-memory.dmp

Filesize
4KB

Download
memory/4648-6-0x0000000003390000-0x0000000003391000-memory.dmp

Filesize
4KB

Download
memory/4648-5-0x0000000005CC0000-0x0000000005CC1000-memory.dmp

Filesize
4KB

Download
memory/4648-7-0x0000000003360000-0x0000000003361000-memory.dmp

Filesize
4KB

Download
memory/4648-9-0x0000000005B70000-0x0000000005B74000-memory.dmp

Filesize
16KB

Download
memory/4648-3-0x0000000000DA0000-0x0000000000DA1000-memory.dmp

Filesize
4KB

Download
memory/4648-2-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/4648-10-0x0000000009020000-0x00000000090BE000-memory.dmp

Filesize
632KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads