MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f. 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


MassLogger


Vendor detections: 17


Intelligence 17 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f
SHA3-384 hash: a98ad32e8dc3e5e5f04199eb9c26cb34dfaf40c0504e6a90ceb682967e1a141c22f0480c3b64d84c54df86fc2a76f6d7
SHA1 hash: 01e17fd8a5faf78ab60f335a8afb5d00c2447f4d
MD5 hash: 58b10ff9b2d50b92cfe1bf371ab30667
humanhash: football-zebra-wolfram-earth
File name:a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'081'856 bytes
First seen:2025-05-09 12:38:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:hMB4yGdBz/ildVmNRK0l7hB+0BWNBOoNnNWelugzl83oKBU:IY7/FNRKZ0BWNPlcelZwoYU
Threatray 3'304 similar samples on MalwareBazaar
TLSH T1B8359D45D2C9FC99C00B1072987DF534241EF75AA27BCD2A2A2A7935A1B73933067F4E
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon d480aa8e96968ed8 (20 x AgentTesla, 15 x SnakeKeylogger, 13 x MassLogger)
Reporter adrian__luca
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
342
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f
Verdict:
Malicious activity
Analysis date:
2025-05-09 14:42:52 UTC
Tags:
snake keylogger evasion purecrypter netreactor stealer auto-startup ims-api generic
Link:
https://app.any.run/tasks/0966149c-a5a8-4ca5-ab83-d46e8c8c60ab

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilheracles-10017859-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681df87fe16384d6a7034244
Tags:
autorun packed virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Reading critical registry keys
Creating a window
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypt obfuscated obfuscated packed packed packer_detected smartassembly smart_assembly
Link:
https://www.filescan.io/uploads/681df776c7418694c8a7ff5b/reports/61854150-a2ff-450c-9ebf-883068941aa2/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/71ade7ed-84df-4953-aa53-39f8e5ba5ba0
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1685383
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
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
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1685383 Sample: d84mpnJe7J.exe Startdate: 09/05/2025 Architecture: WINDOWS Score: 100 29 reallyfreegeoip.org 2->29 31 checkip.dyndns.org 2->31 33 checkip.dyndns.com 2->33 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 47 10 other signatures 2->47 8 d84mpnJe7J.exe 5 2->8         started        12 wscript.exe 1 2->12         started        signatures3 45 Tries to detect the country of the analysis system (by using the IP) 29->45 process4 file5 23 C:\Users\user\AppData\Roaming\Value.exe, PE32 8->23 dropped 25 C:\Users\user\...\Value.exe:Zone.Identifier, ASCII 8->25 dropped 27 C:\Users\user\AppData\Roaming\...\Value.vbs, ASCII 8->27 dropped 53 Drops VBS files to the startup folder 8->53 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->55 14 InstallUtil.exe 15 2 8->14         started        57 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->57 18 Value.exe 2 12->18         started        signatures6 process7 dnsIp8 35 checkip.dyndns.com 193.122.130.0, 49719, 49724, 80 ORACLE-BMC-31898US United States 14->35 37 reallyfreegeoip.org 104.21.16.1, 443, 49725, 49726 CLOUDFLARENETUS United States 14->37 59 Tries to steal Mail credentials (via file / registry access) 14->59 61 Antivirus detection for dropped file 18->61 63 Multi AV Scanner detection for dropped file 18->63 20 InstallUtil.exe 2 18->20         started        signatures9 process10 signatures11 49 Tries to steal Mail credentials (via file / registry access) 20->49 51 Tries to harvest and steal browser information (history, passwords, etc) 20->51
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-04-16 09:25:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
30 of 37 (81.08%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=utg7mtujay2saxb4w6rpfoejjc7qlyedife6bsez7kjhh46bzbhq._file
Verdict:
malicious
Label(s):
novastealer
Create hunting rule
Similar samples:
17277418809bfc803df5fcb1aff0b1268fac38210e2eca8a555bee9f85492e9a
MassLogger
7d255c378440ab20406316da59230e5bda88e1d043f118b6cddd43565c2df329
MassLogger
c36b9e0be5e1181187dc35b3a996794be27e352c348e18628b5ac9c2f46437d0
MassLogger
f7d7afc2edcebc76bd79133bf4d72f6267df2557915d4baf9e8ef63f380f1666
MassLogger
fe367b297a34cf98ea4ecdcb06be7f8dfccde8717175c4f028ddb32de541ac60
MassLogger
+ 3'294 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection discovery spyware stealer
Link:
https://tria.ge/reports/250509-pvwfksvqy2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
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
MassLogger
Masslogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8136617573:AAGlljZMQ8u9tcHA-LI---FUDMJzNiMdY-c/sendMessage?chat_id=8099938407
Verdict:
Malicious
Tags:
Win.Packed.Msilheracles-10017859-0 404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/69a876b9-bcb4-4c2a-a475-e6f669d5f55b
Unpacked files
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
Link:
https://www.unpac.me/results/bb86f87e-10a9-4188-883e-93266bab8507/
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/bb86f87e-10a9-4188-883e-93266bab8507/
SH256 hash:
08098e4b6533d53bf93b630429ec9cb0567052a0f9bf2b07302ae995d2a43a4a
MD5 hash:
31f9bd2d2e1307745f634e89dfa741c6
SHA1 hash:
567e714cac467244b6c34e9f81350828f73fdd4c
Link:
https://www.unpac.me/results/bb86f87e-10a9-4188-883e-93266bab8507/
SH256 hash:
06ee13abc427ba8ad32fb6fcdd1615cdf66a19e431229de8fac379510041df60
MD5 hash:
6396142c18220ef5334a6605d4460d05
SHA1 hash:
6563d03f7bbb65d6db2026fdad0bbc35a28e81e4
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bb86f87e-10a9-4188-883e-93266bab8507/
SH256 hash:
34c4bdd8c90583b9a6de1108a6acbe0504141518e6893dc9e156b4876aa237ec
MD5 hash:
eb9b1264b4475580602eb1b0eb68b31d
SHA1 hash:
eae480b8581d1e098c50c5effcec4272c88c1074
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/bb86f87e-10a9-4188-883e-93266bab8507/
Parent samples :
2d49d19147bf73fe690b7f927c622f15aebd9afd1990be6c5754e0833f341d79
a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f
aa5bf0649b614a83ddb9ecd1454504d9d51126f426a9477e5a407b130cf80983
0ef5a44e6cfee0bc94b6aefce53c7fa98897a204fbbe59a58a416ccd8c2bbb14
SH256 hash:
0b51cb745bf979ff34f161215fd3f760fa9a739b7b769fe1e856bd22b0191943
MD5 hash:
0ac49c3853b50e20b4e30b875c66ac00
SHA1 hash:
fc6a5e959ade923d3f44ed474adcf309df192f50
Link:
https://www.unpac.me/results/bb86f87e-10a9-4188-883e-93266bab8507/
SH256 hash:
a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f
MD5 hash:
58b10ff9b2d50b92cfe1bf371ab30667
SHA1 hash:
01e17fd8a5faf78ab60f335a8afb5d00c2447f4d
Link:
https://www.unpac.me/results/bb86f87e-10a9-4188-883e-93266bab8507/
Malware family:
PrivateLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4cdf64e8906/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/a4cdf64e890635205c3cb7a2f2b88948bf05e0834149e0c899fa9273f3c1c84f

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:crime_snake_keylogger
Create hunting rule
Author:Rony (r0ny_123)
Description:Detects Snake keylogger payload
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:MAL_Envrial_Jan18_1_RID2D8C
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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)
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:Windows_Trojan_SnakeKeylogger_af3faa65
Create hunting rule
Author:Elastic Security
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

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

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