vipkeylogger | 91cbaf0eafd7e647fe5e9d6524d0190d1e62ef168bbe6aac0e6ea017c6aa55bb

Analysis

max time kernel
144s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2025, 08:53

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General

Target

DHL-OVERDUEACCOUNTLETTER-1300711528.exe
Size

1.3MB
MD5

e4be85fd39b06077ad62ee5411e529fa
SHA1

072f4e4446357094c89bc75ee24bb41392fb6efa
SHA256

91cbaf0eafd7e647fe5e9d6524d0190d1e62ef168bbe6aac0e6ea017c6aa55bb
SHA512

b3d89154326f31624ed2cd7fcfcad827bbbec04d7c58767914ca958fd97c7d8bba643633d563f28676c64d0334059646e71d00510128757f96333dbcdefc5672
SSDEEP

24576:ySCF6rZw5Ac1MnnEZ7tEmkgqLxF15g4iWfdFeBzIAx96NsHL:dCotw5Ac1B7tE5BLxLy4xreBisHL

Score

10^/10

vipkeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

https://api.telegram.org/bot7552206830:AAGZUrvJgSRgT_tfVCG5NR-NdC35UuRR1yg/sendMessage?chat_id=6357516296

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3216 created 3456	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	56

VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TypeId.vbs	DHL-OVERDUEACCOUNTLETTER-1300711528.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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.

flow	ioc
25	checkip.dyndns.org
28	reallyfreegeoip.org
29	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3216 set thread context of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL-OVERDUEACCOUNTLETTER-1300711528.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
3504	InstallUtil.exe
3504	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
Token: SeDebugPrivilege	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
Token: SeDebugPrivilege	3504	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89
PID 3216 wrote to memory of 3504	3216	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3456
- C:\Users\Admin\AppData\Local\Temp\DHL-OVERDUEACCOUNTLETTER-1300711528.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL-OVERDUEACCOUNTLETTER-1300711528.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3216
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3216-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/3216-1-0x00000000001F0000-0x0000000000344000-memory.dmp

Filesize
1.3MB

Download
memory/3216-2-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3216-3-0x00000000054A0000-0x00000000055AC000-memory.dmp

Filesize
1.0MB

Download
memory/3216-7-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-4-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-21-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-57-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-67-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-65-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-63-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-61-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-59-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-55-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-53-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-51-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-49-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-47-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-45-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-43-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-41-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-39-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-37-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-35-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-31-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-25-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-23-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-20-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-17-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-15-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-13-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-11-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-9-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-5-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-33-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-29-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-27-0x00000000054A0000-0x00000000055A6000-memory.dmp

Filesize
1.0MB

Download
memory/3216-1326-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3216-1327-0x00000000055F0000-0x0000000005656000-memory.dmp

Filesize
408KB

Download
memory/3216-1328-0x00000000056E0000-0x0000000005742000-memory.dmp

Filesize
392KB

Download
memory/3216-1329-0x0000000005800000-0x000000000584C000-memory.dmp

Filesize
304KB

Download
memory/3216-1330-0x0000000006030000-0x00000000065D4000-memory.dmp

Filesize
5.6MB

Download
memory/3216-1331-0x0000000005960000-0x00000000059B4000-memory.dmp

Filesize
336KB

Download
memory/3216-1336-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3216-1338-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3216-1341-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3216-1342-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3216-1343-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3504-1344-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3504-1346-0x0000000004D20000-0x0000000004DBC000-memory.dmp

Filesize
624KB

Download
memory/3504-1345-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/3504-1347-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3504-1348-0x00000000061F0000-0x00000000063B2000-memory.dmp

Filesize
1.8MB

Download
memory/3504-1349-0x0000000006070000-0x00000000060C0000-memory.dmp

Filesize
320KB

Download
memory/3504-1350-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3504-1351-0x00000000063C0000-0x0000000006452000-memory.dmp

Filesize
584KB

Download
memory/3504-1352-0x0000000006180000-0x000000000618A000-memory.dmp

Filesize
40KB

Download