vipkeylogger | 5e45c73a32cab5efa7196095c8842acb4ba13ce974e96f8190dd6ad0dd819f1e

General

Target

5e45c73a32cab5efa7196095c8842acb4ba13ce974e96f8190dd6ad0dd819f1e.xlsx
Size

2.2MB
MD5

dcd0d55f67330db999c89471cd01aa8f
SHA1

d994c44da5b32cdbf51917de57ed78968feaa639
SHA256

5e45c73a32cab5efa7196095c8842acb4ba13ce974e96f8190dd6ad0dd819f1e
SHA512

36da20e927fe523e6926a41efad0052a37e706a6f934c3e9495b0b2764ae179e2027c72e81919a037a71ce4b99063c6b20b929f57a182111726968085954bf00
SSDEEP

49152:4xfNNNNNNrv7RQKckqaI4WOhyHaAdAVG4dM3aQSsyhgKm7PXiQsWpdC:0VTeaIEocV7gCHmKkq/

Score

10^/10

vipkeylogger collection discovery keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.aewn.buzz
Port:
587
Username:
[email protected]
Password:
7213575aceACE@@
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
Vipkeylogger family
vipkeylogger

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow	pid	Process
4	1784	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

Processes:

catjhdajkew.execatjhdajkew.exe

pid	Process
2900	catjhdajkew.exe
2784	catjhdajkew.exe

Loads dropped DLL 1 IoCs

Processes:

EQNEDT32.EXE

pid	Process
1784	EQNEDT32.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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

catjhdajkew.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catjhdajkew.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catjhdajkew.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catjhdajkew.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.

Processes:

flow	ioc
5	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

catjhdajkew.exe

description	pid	Process	procid_target
PID 2900 set thread context of 2784	2900	catjhdajkew.exe	33

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

EXCEL.EXEEQNEDT32.EXEcatjhdajkew.execatjhdajkew.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	catjhdajkew.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	catjhdajkew.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

Processes:

EQNEDT32.EXE

pid	Process
1784	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid	Process
2060	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

catjhdajkew.exe

pid	Process
2784	catjhdajkew.exe
2784	catjhdajkew.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

catjhdajkew.exe

description	pid	Process
Token: SeDebugPrivilege	2784	catjhdajkew.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid	Process
2060	EXCEL.EXE
2060	EXCEL.EXE
2060	EXCEL.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

EQNEDT32.EXEcatjhdajkew.exe

description	pid	Process	procid_target
PID 1784 wrote to memory of 2900	1784	EQNEDT32.EXE	32
PID 1784 wrote to memory of 2900	1784	EQNEDT32.EXE	32
PID 1784 wrote to memory of 2900	1784	EQNEDT32.EXE	32
PID 1784 wrote to memory of 2900	1784	EQNEDT32.EXE	32
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33
PID 2900 wrote to memory of 2784	2900	catjhdajkew.exe	33

outlook_office_path 1 IoCs

Processes:

catjhdajkew.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catjhdajkew.exe

outlook_win_path 1 IoCs

Processes:

catjhdajkew.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	catjhdajkew.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\5e45c73a32cab5efa7196095c8842acb4ba13ce974e96f8190dd6ad0dd819f1e.xlsx
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2060

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Users\Admin\AppData\Roaming\catjhdajkew.exe
  "C:\Users\Admin\AppData\Roaming\catjhdajkew.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Users\Admin\AppData\Roaming\catjhdajkew.exe
    "C:\Users\Admin\AppData\Roaming\catjhdajkew.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

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

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\catjhdajkew.exe

Filesize
677KB

MD5
54fae9bc8c1a6c5e2e5fbf488737f7d9

SHA1
cf191c67166e4aeab7925666428ca2b941cfd3a8

SHA256
9585b4bc77ca89bb687fa01abd1b5baceff17b166da72dc5613b2f8403767723

SHA512
a584fdd550a58352d78f8759d9d341011532e918916e1bde613545693dd6987388d0d1b3d0f5027419653fe21c0dbd717e5728b9086a8a905caf430e9f55e445

Download Submit
memory/2060-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2060-1-0x00000000729FD000-0x0000000072A08000-memory.dmp

Filesize
44KB

Download
memory/2060-27-0x00000000729FD000-0x0000000072A08000-memory.dmp

Filesize
44KB

Download
memory/2784-23-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2784-14-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2784-26-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2784-25-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2784-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-20-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2784-18-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2784-16-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2900-13-0x0000000000570000-0x0000000000578000-memory.dmp

Filesize
32KB

Download
memory/2900-12-0x0000000001FE0000-0x0000000002058000-memory.dmp

Filesize
480KB

Download
memory/2900-11-0x0000000000040000-0x00000000000EE000-memory.dmp

Filesize
696KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads