MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82a7b83bacb8a14b90742ab0cc14fdfa1f27713d634542a3c6a8e0d4940a6a61. 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



Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 1 File information Comments

SHA256 hash: 82a7b83bacb8a14b90742ab0cc14fdfa1f27713d634542a3c6a8e0d4940a6a61
SHA3-384 hash: 757a109b1e5984ea3efbfa2abfa6b3044ff9699b1456a9dcbc8213690e4541017cf4e1adf15fa1366f687bb05fb1efb6
SHA1 hash: e3c7f8b46cac83b9843169f56653b0a6a50a7032
MD5 hash: 168a81401f16e7a01e8c51ae761b825f
humanhash: hamper-october-princess-south
File name:file.exe
Download: download sample
Signature Formbook
File size:497'680 bytes
First seen:2023-06-28 14:21:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:laL63LUmfl+JYY2zcH1mqdb1gWyH/pZ1+J831Bs2YJ4RLQ0js05HXgf3:ljkcQA/t+q31GN4+2b1Xgf3
Threatray 27 similar samples on MalwareBazaar
TLSH T1C8B4F11C17A9DDD1D1FC833C6891B52C9621A2AB617BBF6135C2A1E23EF27C50B1588F
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
278
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-06-28 14:29:33 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Sending a custom TCP request
Launching a process
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
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:
cmstp lolbin overlay packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Drops PE files with benign system names
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Schedule system process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 895756 Sample: file.exe Startdate: 28/06/2023 Architecture: WINDOWS Score: 100 59 www.stampedesflorida.com 2->59 61 www.myyoutubeblueprint.com 2->61 63 4 other IPs or domains 2->63 67 Malicious sample detected (through community Yara rule) 2->67 69 Antivirus detection for URL or domain 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 6 other signatures 2->73 9 file.exe 1 5 2->9         started        14 svchost.exe 2 2->14         started        16 svchost.exe 2 2->16         started        18 svchost.exe 2 2->18         started        signatures3 process4 dnsIp5 65 192.168.2.1 unknown unknown 9->65 55 C:\Users\user\AppData\Roaming\svchost.exe, PE32+ 9->55 dropped 57 C:\Users\user\AppData\Local\...\file.exe.log, CSV 9->57 dropped 89 Drops PE files with benign system names 9->89 20 cmd.exe 1 9->20         started        22 cmd.exe 1 9->22         started        91 Writes to foreign memory regions 14->91 93 Injects a PE file into a foreign processes 14->93 25 ipconfig.exe 13 14->25         started        95 Multi AV Scanner detection for dropped file 16->95 97 Machine Learning detection for dropped file 16->97 99 Uses ipconfig to lookup or modify the Windows network settings 16->99 27 aspnet_regiis.exe 18->27         started        29 aspnet_regbrowsers.exe 18->29         started        31 SMSvcHost.exe 18->31         started        33 19 other processes 18->33 file6 signatures7 process8 signatures9 35 svchost.exe 3 20->35         started        38 conhost.exe 20->38         started        40 timeout.exe 1 20->40         started        79 Uses schtasks.exe or at.exe to add and modify task schedules 22->79 42 conhost.exe 22->42         started        44 schtasks.exe 1 22->44         started        81 Tries to steal Mail credentials (via file / registry access) 25->81 83 Tries to harvest and steal browser information (history, passwords, etc) 25->83 85 Modifies the context of a thread in another process (thread injection) 25->85 87 Maps a DLL or memory area into another process 25->87 process10 signatures11 75 Writes to foreign memory regions 35->75 77 Injects a PE file into a foreign processes 35->77 46 AddInProcess32.exe 35->46         started        49 MSBuild.exe 35->49         started        51 WsatConfig.exe 35->51         started        53 7 other processes 35->53 process12 signatures13 101 Modifies the context of a thread in another process (thread injection) 46->101 103 Maps a DLL or memory area into another process 46->103 105 Sample uses process hollowing technique 46->105
Threat name:
ByteCode-MSIL.Trojan.Dotrunpex
Status:
Malicious
First seen:
2023-06-28 14:22:05 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
3
AV detection:
14 of 37 (37.84%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
82a7b83bacb8a14b90742ab0cc14fdfa1f27713d634542a3c6a8e0d4940a6a61
MD5 hash:
168a81401f16e7a01e8c51ae761b825f
SHA1 hash:
e3c7f8b46cac83b9843169f56653b0a6a50a7032
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:BAZT_B5_NOCEXInvalidStream

File information


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

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