vipkeylogger | b6f69ae6add8fc4fe97fb795ba4fc968c0b57dcaabffdd5eda743f69ae5ab579

Analysis

max time kernel
122s
max time network
146s
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, 14:26

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General

Target

DHL-OVERDUEACCOUNTLETTER-1300711528.exe
Size

1.5MB
MD5

bf80b724d8c53667f0c86c376584a7a2
SHA1

ff46947c73556412915f71b3928e0787ea24ff1e
SHA256

b6f69ae6add8fc4fe97fb795ba4fc968c0b57dcaabffdd5eda743f69ae5ab579
SHA512

ee73d4cdf81b48c11f31804a9cee4d7c6462e4a64e9200d762554a933e738f4199c61bf7c4445e338b4614735a54e357385223f87a886ea2c4b5e9618564c4d6
SSDEEP

24576:Bfg+Qnfa5DCGhPrdg3hNK8en6Oi9lPLzvPyJaHFWjrrnaLZ:N0fa5+EK3hNK82671zXyswmLZ

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 3520 created 3432	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	55

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\Exception.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-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\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
28	reallyfreegeoip.org
25	checkip.dyndns.org
27	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3520 set thread context of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91

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

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
4500	InstallUtil.exe
4500	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
Token: SeDebugPrivilege	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe
Token: SeDebugPrivilege	4500	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91
PID 3520 wrote to memory of 4500	3520	DHL-OVERDUEACCOUNTLETTER-1300711528.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3432
- 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:3520
- 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:4500

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/3520-0-0x000000007459E000-0x000000007459F000-memory.dmp

Filesize
4KB

Download
memory/3520-1-0x0000000000320000-0x00000000004AE000-memory.dmp

Filesize
1.6MB

Download
memory/3520-2-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3520-3-0x00000000055F0000-0x00000000056FC000-memory.dmp

Filesize
1.0MB

Download
memory/3520-19-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-17-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-51-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-55-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-67-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-65-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-63-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-61-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

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memory/3520-59-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

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memory/3520-57-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-53-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-49-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

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memory/3520-47-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-45-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-43-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

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memory/3520-41-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-40-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-37-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-35-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-33-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-29-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-27-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-31-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-25-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-23-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-21-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-15-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-13-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-11-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-9-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-7-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-5-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-4-0x00000000055F0000-0x00000000056F6000-memory.dmp

Filesize
1.0MB

Download
memory/3520-1326-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3520-1327-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/3520-1328-0x00000000059A0000-0x0000000005A02000-memory.dmp

Filesize
392KB

Download
memory/3520-1329-0x00000000058E0000-0x000000000592C000-memory.dmp

Filesize
304KB

Download
memory/3520-1330-0x0000000006190000-0x0000000006734000-memory.dmp

Filesize
5.6MB

Download
memory/3520-1331-0x0000000005A70000-0x0000000005AC4000-memory.dmp

Filesize
336KB

Download
memory/3520-1337-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3520-1340-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3520-1343-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3520-1342-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3520-1339-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/4500-1344-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/4500-1345-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4500-1346-0x00000000054D0000-0x000000000556C000-memory.dmp

Filesize
624KB

Download
memory/4500-1347-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/4500-1348-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/4500-1349-0x0000000006780000-0x0000000006942000-memory.dmp

Filesize
1.8MB

Download
memory/4500-1350-0x0000000006600000-0x0000000006650000-memory.dmp

Filesize
320KB

Download
memory/4500-1351-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/4500-1352-0x0000000006950000-0x00000000069E2000-memory.dmp

Filesize
584KB

Download
memory/4500-1353-0x00000000066F0000-0x00000000066FA000-memory.dmp

Filesize
40KB

Download