masslogger | a3d5ac40f8cc27fb19a5aeef41569e8c91de45f19609e60af2555fba2540d348

General

Target

yqd2LHZ8y57Bzy4.exe
Size

1.0MB
MD5

1104a7c66dce20e0839b4a8519f68480
SHA1

5d0f34cf5d9b7ce3ca2698b1bc8443ff5d41ac66
SHA256

a3d5ac40f8cc27fb19a5aeef41569e8c91de45f19609e60af2555fba2540d348
SHA512

4a3fe4270f494590e46567a0781f3b5149ac4ad12b41582bdebb1a3513ea16c6b15e6af7a6329a2ac075f3c6012d668debdc6b24708343b6a80a7e30d5dd78d6

Score

10^/10

masslogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
ayocj2021@gmail.com
Password:
ayocj@2021

Signatures

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

MassLogger Main Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/932-14-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral2/memory/932-15-0x0000000000481D7E-mapping.dmp	family_masslogger

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

yqd2LHZ8y57Bzy4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation	yqd2LHZ8y57Bzy4.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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

15 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

yqd2LHZ8y57Bzy4.exe

description pid process target process

PID 4764 set thread context of 932 4764 yqd2LHZ8y57Bzy4.exe yqd2LHZ8y57Bzy4.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

576 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

yqd2LHZ8y57Bzy4.exe

pid process

932 yqd2LHZ8y57Bzy4.exe

flow	ioc
15	api.ipify.org

description	pid	process	target process
PID 4764 set thread context of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe

pid	process
576	schtasks.exe

pid	process
932	yqd2LHZ8y57Bzy4.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

yqd2LHZ8y57Bzy4.exeyqd2LHZ8y57Bzy4.exepowershell.exe

pid	process
4764	yqd2LHZ8y57Bzy4.exe
932	yqd2LHZ8y57Bzy4.exe
932	yqd2LHZ8y57Bzy4.exe
932	yqd2LHZ8y57Bzy4.exe
932	yqd2LHZ8y57Bzy4.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

yqd2LHZ8y57Bzy4.exeyqd2LHZ8y57Bzy4.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4764	yqd2LHZ8y57Bzy4.exe
Token: SeDebugPrivilege	932	yqd2LHZ8y57Bzy4.exe
Token: SeDebugPrivilege	1580	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

yqd2LHZ8y57Bzy4.exe

pid process

932 yqd2LHZ8y57Bzy4.exe

pid	process
932	yqd2LHZ8y57Bzy4.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

yqd2LHZ8y57Bzy4.exeyqd2LHZ8y57Bzy4.exe

description	pid	process	target process
PID 4764 wrote to memory of 576	4764	yqd2LHZ8y57Bzy4.exe	schtasks.exe
PID 4764 wrote to memory of 576	4764	yqd2LHZ8y57Bzy4.exe	schtasks.exe
PID 4764 wrote to memory of 576	4764	yqd2LHZ8y57Bzy4.exe	schtasks.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 4764 wrote to memory of 932	4764	yqd2LHZ8y57Bzy4.exe	yqd2LHZ8y57Bzy4.exe
PID 932 wrote to memory of 1580	932	yqd2LHZ8y57Bzy4.exe	powershell.exe
PID 932 wrote to memory of 1580	932	yqd2LHZ8y57Bzy4.exe	powershell.exe
PID 932 wrote to memory of 1580	932	yqd2LHZ8y57Bzy4.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\yqd2LHZ8y57Bzy4.exe
"C:\Users\Admin\AppData\Local\Temp\yqd2LHZ8y57Bzy4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EYcjIZNTmpr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C10.tmp"
2⤵
- Creates scheduled task(s)
PID:576

C:\Users\Admin\AppData\Local\Temp\yqd2LHZ8y57Bzy4.exe
"{path}"
2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:932

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\yqd2LHZ8y57Bzy4.exe'
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1580

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\yqd2LHZ8y57Bzy4.exe.log
MD5
3fed8d1dd11972a6e2603bb2d73a3ee5

SHA1
7ecb7f64ade7b91c5815da647e84167c3d95afb4

SHA256
eecf6c0575dc995a485d46a5daaa66f58229e552f16782d873834d218ab17551

SHA512
ca6059eb67f800cc666d5146d24070abf5ee08209f8f9d1668a0ca2201eb3f6fa013c2d807b09925e12b82c37686980fcc26a6a5e4a5ba129c4b2a585961d3bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3C10.tmp
MD5
8c1fa67bf37f767d544365771e485fe2

SHA1
b6405e3bab72ae57c52145cd632b95f8a5c973d6

SHA256
f78eb63786fccc199d258637b741d0927f0252bc310e6e7db02ff4d10e853a05

SHA512
68e3eeb6805e04a51bded21f9f5018cbd9e153382e7f688ba9af48938c7b893467dcd3f08108e319f489aac125a60d4c576b34a9d4fb953c9eefe3c804d82528

Download Submit
memory/576-12-0x0000000000000000-mapping.dmp

Download
memory/932-30-0x00000000088B0000-0x000000000893D000-memory.dmp

Filesize
564KB

Download
memory/932-25-0x0000000007350000-0x0000000007351000-memory.dmp

Filesize
4KB

Download
memory/932-22-0x0000000006A30000-0x0000000006A31000-memory.dmp

Filesize
4KB

Download
memory/932-17-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/932-15-0x0000000000481D7E-mapping.dmp

Download
memory/932-14-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1580-34-0x0000000007C10000-0x0000000007C11000-memory.dmp

Filesize
4KB

Download
memory/1580-31-0x0000000007010000-0x0000000007011000-memory.dmp

Filesize
4KB

Download
memory/1580-51-0x0000000009410000-0x0000000009411000-memory.dmp

Filesize
4KB

Download
memory/1580-49-0x0000000009420000-0x0000000009421000-memory.dmp

Filesize
4KB

Download
memory/1580-48-0x0000000009470000-0x0000000009471000-memory.dmp

Filesize
4KB

Download
memory/1580-47-0x00000000091C0000-0x00000000091C1000-memory.dmp

Filesize
4KB

Download
memory/1580-46-0x0000000008F40000-0x0000000008F41000-memory.dmp

Filesize
4KB

Download
memory/1580-23-0x0000000000000000-mapping.dmp

Download
memory/1580-39-0x0000000009180000-0x00000000091B3000-memory.dmp

Filesize
204KB

Download
memory/1580-26-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/1580-28-0x0000000006A10000-0x0000000006A11000-memory.dmp

Filesize
4KB

Download
memory/1580-29-0x00000000071A0000-0x00000000071A1000-memory.dmp

Filesize
4KB

Download
memory/1580-37-0x00000000081B0000-0x00000000081B1000-memory.dmp

Filesize
4KB

Download
memory/1580-36-0x0000000008320000-0x0000000008321000-memory.dmp

Filesize
4KB

Download
memory/1580-32-0x0000000007840000-0x0000000007841000-memory.dmp

Filesize
4KB

Download
memory/1580-35-0x00000000078B0000-0x00000000078B1000-memory.dmp

Filesize
4KB

Download
memory/4764-2-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4764-11-0x00000000085E0000-0x00000000085E1000-memory.dmp

Filesize
4KB

Download
memory/4764-3-0x0000000000D50000-0x0000000000D51000-memory.dmp

Filesize
4KB

Download
memory/4764-5-0x0000000005D50000-0x0000000005D51000-memory.dmp

Filesize
4KB

Download
memory/4764-6-0x0000000005850000-0x0000000005851000-memory.dmp

Filesize
4KB

Download
memory/4764-7-0x0000000005940000-0x0000000005941000-memory.dmp

Filesize
4KB

Download
memory/4764-8-0x0000000008010000-0x0000000008011000-memory.dmp

Filesize
4KB

Download
memory/4764-9-0x0000000007370000-0x000000000737E000-memory.dmp

Filesize
56KB

Download
memory/4764-10-0x0000000007EE0000-0x0000000007F8B000-memory.dmp

Filesize
684KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads