vipkeylogger | 0fec3c669c7e1f7c180883a01062dc51394a600cb9a087eed466297f3b22eb13

General

Target

GCBrnEGE22coKRz.exe
Size

822KB
MD5

5783a1fa182d62eb3838a2e3954a1f36
SHA1

eec476fcc102b50390cf983725dbffaee693200e
SHA256

a708a6cd710ba79a3dee7a91db6fedf3b3f6da1ab10d6391cc98962ee0904fd1
SHA512

31d8cd0fa9f08b7ada602fdd4877c246e892f1d18fdee0cc3e49ac7f293d3b41857009c3a3b97fa14737bdcfa786ed2cdb88b4d5e6383d5f83eda69e5bd4f7d8
SSDEEP

12288:XMf55k2851eTl3GpqJTWwK6WP/FlTW/Md3SlpAVF/8CxeYm8ba/DONRoT9H:Xy5xR5VKBXvTUOlNm8bkDD

Score

10^/10

vipkeylogger collection credential_access discovery execution keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
SU#BtOQl4
Email To:
[email protected]

Signatures

VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1356	powershell.exe
2628	powershell.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	GCBrnEGE22coKRz.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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GCBrnEGE22coKRz.exe
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GCBrnEGE22coKRz.exe
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GCBrnEGE22coKRz.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
27	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2908 set thread context of 2536	2908	GCBrnEGE22coKRz.exe	101

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4968	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2628	powershell.exe
2628	powershell.exe
1356	powershell.exe
1356	powershell.exe
2628	powershell.exe
2536	GCBrnEGE22coKRz.exe
2536	GCBrnEGE22coKRz.exe
1356	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1356	powershell.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	2536	GCBrnEGE22coKRz.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 1356	2908	GCBrnEGE22coKRz.exe	95
PID 2908 wrote to memory of 1356	2908	GCBrnEGE22coKRz.exe	95
PID 2908 wrote to memory of 2628	2908	GCBrnEGE22coKRz.exe	96
PID 2908 wrote to memory of 2628	2908	GCBrnEGE22coKRz.exe	96
PID 2908 wrote to memory of 4968	2908	GCBrnEGE22coKRz.exe	97
PID 2908 wrote to memory of 4968	2908	GCBrnEGE22coKRz.exe	97
PID 2908 wrote to memory of 2536	2908	GCBrnEGE22coKRz.exe	101
PID 2908 wrote to memory of 2536	2908	GCBrnEGE22coKRz.exe	101
PID 2908 wrote to memory of 2536	2908	GCBrnEGE22coKRz.exe	101
PID 2908 wrote to memory of 2536	2908	GCBrnEGE22coKRz.exe	101
PID 2908 wrote to memory of 2536	2908	GCBrnEGE22coKRz.exe	101
PID 2908 wrote to memory of 2536	2908	GCBrnEGE22coKRz.exe	101

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GCBrnEGE22coKRz.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	GCBrnEGE22coKRz.exe

C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe
"C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1356
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xdOaJTzpabdo.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xdOaJTzpabdo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCD81.tmp"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4968
- C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe
  C:\Users\Admin\AppData\Local\Temp\GCBrnEGE22coKRz.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\GCBrnEGE22coKRz.exe.log

Filesize
1KB

MD5
00e11b196d5ba77191cba469e8925764

SHA1
f1546b803f20c8b4010f862843edc0b0771a681b

SHA256
abfc56372bee93b3c083a66ac449e55f824c5ef64cbb87d656011cc0ff1ec6c1

SHA512
985bd5a4d4f516701e54a4c361dd3a454cb107694cd240336e32365822f49b47f0a2e0cc04ae7866bfd4d142175540bb329f02f3e1b990e9a09c63c2e258f0a7

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0k3ihkd5.it0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCD81.tmp

Filesize
1KB

MD5
354133251c0c96140b1e684fb4b4a34c

SHA1
e665cb77ee2f66a62506195debb2c91a0444c9b3

SHA256
62d21d5350b972e7ac2880a5586e97b52a46659068914171b4ba6482ba2a5cad

SHA512
38ba1d2998c6c8e8a91daf79438c7fa9c11d68e6f5d8c9590eb20eb995e54ff2f6af445ed1c5c015d4c68a7ad7217c408d18ae57fd58e1f2f7f704ea178064c4

Download Submit
memory/1356-19-0x000001CAEA060000-0x000001CAEA082000-memory.dmp

Filesize
136KB

Download
memory/2536-24-0x0000000140000000-0x0000000140048000-memory.dmp

Filesize
288KB

Download
memory/2536-44-0x0000000001DC0000-0x0000000001E10000-memory.dmp

Filesize
320KB

Download
memory/2536-43-0x000000001EEF0000-0x000000001F0B2000-memory.dmp

Filesize
1.8MB

Download
memory/2628-39-0x00007FFFF8D40000-0x00007FFFF9801000-memory.dmp

Filesize
10.8MB

Download
memory/2628-13-0x00007FFFF8D40000-0x00007FFFF9801000-memory.dmp

Filesize
10.8MB

Download
memory/2908-7-0x000000001DC70000-0x000000001DCFA000-memory.dmp

Filesize
552KB

Download
memory/2908-6-0x00000000017C0000-0x00000000017D4000-memory.dmp

Filesize
80KB

Download
memory/2908-5-0x0000000003890000-0x00000000038A6000-memory.dmp

Filesize
88KB

Download
memory/2908-36-0x00007FFFF8D40000-0x00007FFFF9801000-memory.dmp

Filesize
10.8MB

Download
memory/2908-0-0x00007FFFF8D43000-0x00007FFFF8D45000-memory.dmp

Filesize
8KB

Download
memory/2908-4-0x00007FFFF8D40000-0x00007FFFF9801000-memory.dmp

Filesize
10.8MB

Download
memory/2908-3-0x0000000001790000-0x00000000017B4000-memory.dmp

Filesize
144KB

Download
memory/2908-2-0x00007FFFF8D40000-0x00007FFFF9801000-memory.dmp

Filesize
10.8MB

Download
memory/2908-1-0x0000000000C50000-0x0000000000D20000-memory.dmp

Filesize
832KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads