vkeylogger | 3367fd9ef4970f0f5a98b1e431c89dab120c098b8a9bed70b8729864931d274a

General

Target

8c5d3c16ae8cb907379a21bfab8cbb56.exe
Size

161KB
MD5

8c5d3c16ae8cb907379a21bfab8cbb56
SHA1

c953abf45094625232a4b7a46ad91948e3f97b9e
SHA256

3367fd9ef4970f0f5a98b1e431c89dab120c098b8a9bed70b8729864931d274a
SHA512

25fc4b10d8e44b80a2bd47d3413ce99f647d1ad083fdc3c56e5c47e9d24deed0bcd1b998cbdf7ae672edc087d4d1c6b5773150471b189ee635336257ddc2b878

Score

10^/10

vkeylogger collection keylogger persistence spyware stealer suricata

Malware Config

Signatures

VKeylogger
A keylogger first seen in Nov 2020.
stealer keylogger vkeylogger

VKeylogger Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1188-57-0x0000000000030000-0x000000000003E000-memory.dmp	family_vkeylogger
behavioral1/memory/1188-58-0x0000000000400000-0x000000000081A000-memory.dmp	family_vkeylogger
behavioral1/memory/1620-62-0x0000000000080000-0x000000000008F000-memory.dmp	family_vkeylogger

suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

1005.exe

pid process

968 1005.exe
Loads dropped DLL 4 IoCs

Processes:

explorer.exe

pid process

1620 explorer.exe
1620 explorer.exe
1620 explorer.exe
1620 explorer.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
968	1005.exe

pid	process
1620	explorer.exe
1620	explorer.exe
1620	explorer.exe
1620	explorer.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

1005.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1005.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1005.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1005.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\ChromeDriver = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8c5d3c16ae8cb907379a21bfab8cbb56.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\Firefox_update = "C:\\Windows\\system32\\mshta.exe javascript:x=new%20ActiveXObject(\"wscript.shell\");v=x.RegRead(\"HKCU\\\\Software\\\\Microsoft\\\\SMSvcHost\\\\ComponentID\");eval(v);"	explorer.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

6 ifconfig.me
8 freegeoip.app
9 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

8c5d3c16ae8cb907379a21bfab8cbb56.exe

description pid process target process

PID 1188 set thread context of 1620 1188 8c5d3c16ae8cb907379a21bfab8cbb56.exe explorer.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	ioc
6	ifconfig.me
8	freegeoip.app
9	freegeoip.app

description	pid	process	target process
PID 1188 set thread context of 1620	1188	8c5d3c16ae8cb907379a21bfab8cbb56.exe	explorer.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

1005.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	1005.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	1005.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1005.exe

pid process

968 1005.exe
968 1005.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

8c5d3c16ae8cb907379a21bfab8cbb56.exeexplorer.exe

pid process

1188 8c5d3c16ae8cb907379a21bfab8cbb56.exe
1620 explorer.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1005.exe

description pid process

Token: SeDebugPrivilege 968 1005.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

explorer.exe

pid process

1620 explorer.exe

pid	process
968	1005.exe
968	1005.exe

pid	process
1188	8c5d3c16ae8cb907379a21bfab8cbb56.exe
1620	explorer.exe

description	pid	process
Token: SeDebugPrivilege	968	1005.exe

pid	process
1620	explorer.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

8c5d3c16ae8cb907379a21bfab8cbb56.exeexplorer.exe1005.execmd.exe

description	pid	process	target process
PID 1188 wrote to memory of 1620	1188	8c5d3c16ae8cb907379a21bfab8cbb56.exe	explorer.exe
PID 1188 wrote to memory of 1620	1188	8c5d3c16ae8cb907379a21bfab8cbb56.exe	explorer.exe
PID 1188 wrote to memory of 1620	1188	8c5d3c16ae8cb907379a21bfab8cbb56.exe	explorer.exe
PID 1188 wrote to memory of 1620	1188	8c5d3c16ae8cb907379a21bfab8cbb56.exe	explorer.exe
PID 1620 wrote to memory of 968	1620	explorer.exe	1005.exe
PID 1620 wrote to memory of 968	1620	explorer.exe	1005.exe
PID 1620 wrote to memory of 968	1620	explorer.exe	1005.exe
PID 1620 wrote to memory of 968	1620	explorer.exe	1005.exe
PID 968 wrote to memory of 1684	968	1005.exe	cmd.exe
PID 968 wrote to memory of 1684	968	1005.exe	cmd.exe
PID 968 wrote to memory of 1684	968	1005.exe	cmd.exe
PID 1684 wrote to memory of 2020	1684	cmd.exe	choice.exe
PID 1684 wrote to memory of 2020	1684	cmd.exe	choice.exe
PID 1684 wrote to memory of 2020	1684	cmd.exe	choice.exe

outlook_office_path 1 IoCs

Processes:

1005.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1005.exe

outlook_win_path 1 IoCs

Processes:

1005.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1005.exe

C:\Users\Admin\AppData\Local\Temp\8c5d3c16ae8cb907379a21bfab8cbb56.exe
"C:\Users\Admin\AppData\Local\Temp\8c5d3c16ae8cb907379a21bfab8cbb56.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1188

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1620

C:\Users\Admin\AppData\Local\Temp\1005.exe
"C:\Users\Admin\AppData\Local\Temp\1005.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:968

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\1005.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 3
5⤵
PID:2020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\1005.exe
MD5
7c7adf954ee81efdf201d247a1c61108

SHA1
bff2411369a774038bb0aa84d6b67a7f20a51432

SHA256
5ed5bb52b9f5ec2afcfea57f0e6efb43c2b84be9834f33499c2f6dfa50e5b3f9

SHA512
b901ec4f1eb11b964a8ea1c4454aa36e3a79cebed1ce9f0572cf30553081f7c0d9ad6a9dd5a454b68671cf4dc62a51f0bb1dd0aa03bc88bbdc267b7d2f6028be

Download Submit
C:\Users\Admin\AppData\Local\Temp\1005.exe
MD5
7c7adf954ee81efdf201d247a1c61108

SHA1
bff2411369a774038bb0aa84d6b67a7f20a51432

SHA256
5ed5bb52b9f5ec2afcfea57f0e6efb43c2b84be9834f33499c2f6dfa50e5b3f9

SHA512
b901ec4f1eb11b964a8ea1c4454aa36e3a79cebed1ce9f0572cf30553081f7c0d9ad6a9dd5a454b68671cf4dc62a51f0bb1dd0aa03bc88bbdc267b7d2f6028be

Download Submit
\Users\Admin\AppData\Local\Temp\1005.exe
MD5
7c7adf954ee81efdf201d247a1c61108

SHA1
bff2411369a774038bb0aa84d6b67a7f20a51432

SHA256
5ed5bb52b9f5ec2afcfea57f0e6efb43c2b84be9834f33499c2f6dfa50e5b3f9

SHA512
b901ec4f1eb11b964a8ea1c4454aa36e3a79cebed1ce9f0572cf30553081f7c0d9ad6a9dd5a454b68671cf4dc62a51f0bb1dd0aa03bc88bbdc267b7d2f6028be

Download Submit
\Users\Admin\AppData\Local\Temp\1005.exe
MD5
7c7adf954ee81efdf201d247a1c61108

SHA1
bff2411369a774038bb0aa84d6b67a7f20a51432

SHA256
5ed5bb52b9f5ec2afcfea57f0e6efb43c2b84be9834f33499c2f6dfa50e5b3f9

SHA512
b901ec4f1eb11b964a8ea1c4454aa36e3a79cebed1ce9f0572cf30553081f7c0d9ad6a9dd5a454b68671cf4dc62a51f0bb1dd0aa03bc88bbdc267b7d2f6028be

Download Submit
\Users\Admin\AppData\Local\Temp\1005.exe
MD5
7c7adf954ee81efdf201d247a1c61108

SHA1
bff2411369a774038bb0aa84d6b67a7f20a51432

SHA256
5ed5bb52b9f5ec2afcfea57f0e6efb43c2b84be9834f33499c2f6dfa50e5b3f9

SHA512
b901ec4f1eb11b964a8ea1c4454aa36e3a79cebed1ce9f0572cf30553081f7c0d9ad6a9dd5a454b68671cf4dc62a51f0bb1dd0aa03bc88bbdc267b7d2f6028be

Download Submit
\Users\Admin\AppData\Local\Temp\1005.exe
MD5
7c7adf954ee81efdf201d247a1c61108

SHA1
bff2411369a774038bb0aa84d6b67a7f20a51432

SHA256
5ed5bb52b9f5ec2afcfea57f0e6efb43c2b84be9834f33499c2f6dfa50e5b3f9

SHA512
b901ec4f1eb11b964a8ea1c4454aa36e3a79cebed1ce9f0572cf30553081f7c0d9ad6a9dd5a454b68671cf4dc62a51f0bb1dd0aa03bc88bbdc267b7d2f6028be

Download Submit
memory/968-67-0x0000000000000000-mapping.dmp

Download
memory/968-70-0x0000000001300000-0x0000000001301000-memory.dmp

Filesize
4KB

Download
memory/968-72-0x000000001AFE0000-0x000000001AFE2000-memory.dmp

Filesize
8KB

Download
memory/1188-58-0x0000000000400000-0x000000000081A000-memory.dmp

Filesize
4.1MB

Download
memory/1188-57-0x0000000000030000-0x000000000003E000-memory.dmp

Filesize
56KB

Download
memory/1188-55-0x0000000074EC1000-0x0000000074EC3000-memory.dmp

Filesize
8KB

Download
memory/1188-56-0x0000000000020000-0x000000000002A000-memory.dmp

Filesize
40KB

Download
memory/1620-62-0x0000000000080000-0x000000000008F000-memory.dmp

Filesize
60KB

Download
memory/1620-61-0x0000000074B31000-0x0000000074B33000-memory.dmp

Filesize
8KB

Download
memory/1620-59-0x0000000000082E90-mapping.dmp

Download
memory/1684-73-0x0000000000000000-mapping.dmp

Download
memory/2020-74-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads