MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3243794f6d3ccc8d752c604683b1bc2233ee875c6c31cbda027ffc50a120a39. 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



Threat unknown


Vendor detections: 16


Intelligence 16 IOCs YARA 4 File information Comments

SHA256 hash: b3243794f6d3ccc8d752c604683b1bc2233ee875c6c31cbda027ffc50a120a39
SHA3-384 hash: 2db33c2b50c46d158fa0faaee4ab641995f4615fc7679bf113215fa81dc4c8c9e1c80b7522ac479a52c21df55e08316d
SHA1 hash: 8c4a07db54a30d092acf9b2e87d7c045ebf40100
MD5 hash: 12947b9484bdae55d646dc02be4ef887
humanhash: beryllium-sodium-ceiling-music
File name:12947b9484bdae55d646dc02be4ef887.exe
Download: download sample
File size:1'428'480 bytes
First seen:2026-04-17 13:18:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'886 x AgentTesla, 19'802 x Formbook, 12'306 x SnakeKeylogger)
ssdeep 24576:MsyrDa26h3Hor2gHUkVQcOKsz6/lyng5osXYgImRjqqA8+v9:LDNpIr2/+OKsz6/lwcev
TLSH T1BF6512287A2ACE02D8D983B85974D37513B45C5EE822E3178FECBDF37476B512908257
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon d4cc4cac44484844
Reporter abuse_ch
Tags:exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
117
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-04-17 13:19:57 UTC
Tags:
auto-startup susp-lnk stealer netreactor purehvnc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
autorun virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Connection attempt
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook krypt packed vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-08T06:06:00Z UTC
Last seen:
2026-04-19T03:08:00Z UTC
Hits:
~100
Detections:
Trojan-Dropper.Scrop.HTTP.C&C PDM:Trojan.Win32.Generic HEUR:Backdoor.MSIL.XWorm.gen VHO:Backdoor.Win32.Androm.gen Trojan.MSIL.Dnoper.sb Trojan-PSW.Stealer.HTTP.C&C
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.expl.evad
Score:
100 / 100
Signature
AI detected malicious Powershell script
Allocates memory in foreign processes
Bypasses PowerShell execution policy
Creates a thread in another existing process (thread injection)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows shortcut file (LNK) contains suspicious command line arguments
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected MSIL Injector
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1900083 Sample: JoLUcpYd0b.exe Startdate: 17/04/2026 Architecture: WINDOWS Score: 100 48 shed.dual-low.part-0012.t-0009.t-msedge.net 2->48 50 part-0012.t-0009.t-msedge.net 2->50 52 6 other IPs or domains 2->52 80 Multi AV Scanner detection for submitted file 2->80 82 Yara detected MSIL Injector 2->82 84 Yara detected AntiVM3 2->84 86 8 other signatures 2->86 9 JoLUcpYd0b.exe 8 2->9         started        13 powershell.exe 19 2->13         started        signatures3 process4 file5 40 C:\Users\user\AppData\...\OqQlEzQLPXlY.exe, PE32 9->40 dropped 42 C:\Users\...\OqQlEzQLPXlY.exe:Zone.Identifier, ASCII 9->42 dropped 44 C:\Users\user\AppData\...\aflgy2s3vin.ps1, ASCII 9->44 dropped 46 C:\Users\user\AppData\...\JoLUcpYd0b.exe.log, ASCII 9->46 dropped 88 Writes to foreign memory regions 9->88 90 Allocates memory in foreign processes 9->90 92 Injects a PE file into a foreign processes 9->92 15 MSBuild.exe 15 3 9->15         started        19 MSBuild.exe 9->19         started        21 OqQlEzQLPXlY.exe 13->21         started        23 conhost.exe 13->23         started        signatures6 process7 dnsIp8 62 108.59.10.42, 49715, 49716, 49721 LEASEWEB-USA-WDCUS United States 15->62 64 Tries to steal Mail credentials (via file / registry access) 15->64 66 Tries to harvest and steal browser information (history, passwords, etc) 15->66 68 Writes to foreign memory regions 15->68 78 2 other signatures 15->78 25 chrome.exe 3 15->25         started        29 chrome.exe 15->29 injected 31 chrome.exe 15->31 injected 35 4 other processes 15->35 70 Switches to a custom stack to bypass stack traces 19->70 72 Multi AV Scanner detection for dropped file 21->72 74 Allocates memory in foreign processes 21->74 76 Injects a PE file into a foreign processes 21->76 33 MSBuild.exe 21->33         started        signatures9 process10 dnsIp11 60 192.168.2.4, 138, 443, 49591 unknown unknown 25->60 94 Suspicious powershell command line found 25->94 96 Suspicious execution chain found 25->96 37 chrome.exe 25->37         started        98 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 33->98 signatures12 process13 dnsIp14 54 www.google.com 142.251.155.119, 443, 49731, 49732 GOOGLEUS United States 37->54 56 google.com 142.251.211.78, 443, 49761 GOOGLEUS United States 37->56 58 6 other IPs or domains 37->58
Gathering data
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2026-04-08 09:11:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection discovery
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Time Discovery
Drops file in Windows directory
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Drops startup file
Unpacked files
SH256 hash:
b3243794f6d3ccc8d752c604683b1bc2233ee875c6c31cbda027ffc50a120a39
MD5 hash:
12947b9484bdae55d646dc02be4ef887
SHA1 hash:
8c4a07db54a30d092acf9b2e87d7c045ebf40100
SH256 hash:
4ec2a214791ddc4516c793acb8676001f5bcae41480db4b9711d172bc1a6e1fd
MD5 hash:
adb0c0bb069aae9262c36c8ea7f26f7b
SHA1 hash:
1c700e68a56dec22e490ea6ac7de3a76015ae980
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
cd3fe1f64c6de499952b27bac911f6bbdc5b4bf60b2f689fe1edd42d405e867b
MD5 hash:
fc7011a20cadbc6d07efd3a12a19e4df
SHA1 hash:
7c9cbbb4611d03423e5904e65680d74b16bf7a60
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SH256 hash:
8edbb28bdd121f23e0432e65d2412cb93e276816bc3b634e78d14ab0931b58e6
MD5 hash:
b21240dda9368aebe4fdd0e03df43503
SHA1 hash:
9802050d6d6ddbcfdc6dd02d9c8a9e1e1763ab0e
Detections:
INDICATOR_EXE_Packed_SmartAssembly
SH256 hash:
b66dd996c5a68030c53abbab695a7ef4c3b17ef7ca5716cc8869072bf720a27a
MD5 hash:
3db3017a0d96f60c4bf7967d80d5ea16
SHA1 hash:
2a61ae87408972c5fd58f8c99cb7cd120eb70830
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

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