MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


VIPKeylogger


Vendor detections: 16


Intelligence 16 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde
SHA3-384 hash: 2131c458321e04f3f8ed852cedff5e2dc5fafe4a926c09b486789687de045522efc8997cd3e6514c78be20e583f06d39
SHA1 hash: 101b93a16ecedb1b143f80ddbdb12ee376ec1f88
MD5 hash: 52801720d0495e0bd1f781e22bf48a20
humanhash: alabama-carpet-lion-avocado
File name:PO-INVOICE.exe
Download: download sample
Signature VIPKeylogger
Create hunting rule
File size:1'099'264 bytes
First seen:2025-04-14 14:47:13 UTC
Last seen:2025-04-14 14:55:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:NRxYwke17y0EID2XalWFwXf+5pyewHrAKF6F8Ld339S:pFlA0EIDDsFwv0Mx8CL
TLSH T1B8352314775A8717E97D57F62253E042063A9378BC30E18DACCE13ED2C0AB917A25E6F
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter threatcat_ch
Tags:exe VIPKeylogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
521
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-INVOICE.tar.001
Verdict:
No threats detected
Analysis date:
2025-04-14 12:49:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/54551ecc-82b4-40a7-b5a8-e29dff5144c0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/2198/
Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67fd0461d6e7c3effad29fab
Tags:
autorun virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %AppData% directory
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Creating a window
Enabling autorun by creating a file
Unauthorized injection to a system process
Forced shutdown of a browser
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67fd202a89fec6b88b9c9c4e/reports/87fcfda9-59bf-4b9a-94a3-3f5048373f52/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde
Result
Verdict:
UNKNOWN
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/66358ca1-f380-4fab-a738-ff96fa11517c
Result
Threat name:
Snake Keylogger, VIP Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1664676
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Snake Keylogger
Yara detected Telegram RAT
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1664676 Sample: PO-INVOICE.exe Startdate: 14/04/2025 Architecture: WINDOWS Score: 100 29 reallyfreegeoip.org 2->29 31 api.telegram.org 2->31 33 3 other IPs or domains 2->33 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 51 13 other signatures 2->51 8 PO-INVOICE.exe 5 2->8         started        12 wscript.exe 1 2->12         started        signatures3 47 Tries to detect the country of the analysis system (by using the IP) 29->47 49 Uses the Telegram API (likely for C&C communication) 31->49 process4 file5 23 C:\Users\user\AppData\...\DigestAlgorithm.exe, PE32 8->23 dropped 25 C:\Users\user\AppData\...\DigestAlgorithm.vbs, ASCII 8->25 dropped 27 C:\...\DigestAlgorithm.exe:Zone.Identifier, ASCII 8->27 dropped 57 Drops VBS files to the startup folder 8->57 59 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->59 61 Writes to foreign memory regions 8->61 63 Injects a PE file into a foreign processes 8->63 14 InstallUtil.exe 15 2 8->14         started        65 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->65 18 DigestAlgorithm.exe 2 12->18         started        signatures6 process7 dnsIp8 35 api.telegram.org 149.154.167.220, 443, 49709, 49728 TELEGRAMRU United Kingdom 14->35 37 checkip.dyndns.com 193.122.6.168, 49687, 49690, 49693 ORACLE-BMC-31898US United States 14->37 39 2 other IPs or domains 14->39 67 Tries to steal Mail credentials (via file / registry access) 14->67 69 Antivirus detection for dropped file 18->69 71 Multi AV Scanner detection for dropped file 18->71 73 Writes to foreign memory regions 18->73 75 Injects a PE file into a foreign processes 18->75 20 InstallUtil.exe 2 18->20         started        signatures9 process10 signatures11 53 Tries to steal Mail credentials (via file / registry access) 20->53 55 Tries to harvest and steal browser information (history, passwords, etc) 20->55
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Suspicious
First seen:
2025-04-14 09:45:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mm72wqq4imn7bsmcodthazbazomukgk6c7y2liw5zkxwyvripppa._file
Verdict:
malicious
Label(s):
vipkeylogger
Create hunting rule
Similar samples:
error
VIPKeylogger
Result
Malware family:
vipkeylogger
Create hunting rule
Score:
  10/10
Tags:
family:vipkeylogger collection discovery keylogger stealer
Link:
https://tria.ge/reports/250414-r6g4fayqw8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Drops startup file
VIPKeylogger
Vipkeylogger family
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/90cc2acb-6e90-4d98-be3c-e33a94222b8f
Unpacked files
SH256 hash:
633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde
MD5 hash:
52801720d0495e0bd1f781e22bf48a20
SHA1 hash:
101b93a16ecedb1b143f80ddbdb12ee376ec1f88
Link:
https://www.unpac.me/results/a5f509eb-968c-4715-9c38-7b00e5980c2a/
SH256 hash:
ca3031b1b0b679d5c58f9d8b08c92b571bfa3ea1c87e8be1ecb80bcf85102566
MD5 hash:
0a8e96ab3574b0a2a67829eba748632e
SHA1 hash:
f267e82ea143d571b637bb1ad5a321424a63d1b9
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a5f509eb-968c-4715-9c38-7b00e5980c2a/
SH256 hash:
f4c1c59d30eef527e0e2ba78684e223354407115bd7dc85f6f62d083aad9ea80
MD5 hash:
b8be3578091015348385e044287d5a7a
SHA1 hash:
209c4a813abda8cd7669e08018b7ba8d20b97309
Link:
https://www.unpac.me/results/a5f509eb-968c-4715-9c38-7b00e5980c2a/
SH256 hash:
768f0590b5a274b3cef9c6c739233ee94933363c42c4397460ad3719ea481a17
MD5 hash:
4ae38dbc4ab870c12967b0c691c60445
SHA1 hash:
304d1553297084f53053a0393dda2e24030c8bc7
Link:
https://www.unpac.me/results/a5f509eb-968c-4715-9c38-7b00e5980c2a/
SH256 hash:
990c4a15a278a813689977a10cdac18b57a1514b85a5ce606d44ee131b08276d
MD5 hash:
f1b9be6ab34f19ebd38cf8108d889d7f
SHA1 hash:
45c72c278f890f2d8c1d7512b8abc005827fc354
Link:
https://www.unpac.me/results/a5f509eb-968c-4715-9c38-7b00e5980c2a/
SH256 hash:
ec966f592a87627a7e66d20b9eb93fb5c0a1658e6d6075e8fcff5e798d4589fa
MD5 hash:
ded1b8a8799c9c73428073bb36a3193a
SHA1 hash:
6659c47641edf41fa9db69ff7a8708f41fb54783
Detections:
win_404keylogger_g1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/a5f509eb-968c-4715-9c38-7b00e5980c2a/
Parent samples :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 family:
VIPKeylogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/633fab421c43/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

VIPKeylogger

tar 6a3ed292ffbe10a366c6c298832cb0ebcb10944f2b30fcbe52097ade905cfde6

VIPKeylogger

Executable exe 633fab421c431bf0c98270e6706420cb9945195e17f1a5a2ddcaaf6c56287bde

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/2198/
  
Dropped by
SHA256 6a3ed292ffbe10a366c6c298832cb0ebcb10944f2b30fcbe52097ade905cfde6
  
Dropped by
MD5 cd838215d541f4c0a697b19a1d5084b5

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments