MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15ea783eaed5ea26907b2c782e5e201a56f2fe0a76005bb42a0b1ae72fe05c9f. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: 15ea783eaed5ea26907b2c782e5e201a56f2fe0a76005bb42a0b1ae72fe05c9f
SHA3-384 hash: da6647ebf229929901e280bf155be64da161d6964807f39564884920b05ead241c752e97d019bce4d646ee8dfc5109a2
SHA1 hash: 56ec0d7f1caa80d2c06308ef016fdf8688d7c5e4
MD5 hash: 14a04ad7d908944f8d4066108d22fb0a
humanhash: autumn-william-sixteen-spaghetti
File name:G05kKUODK00JTiA.exe
Download: download sample
Signature FormBook
File size:554'496 bytes
First seen:2020-08-27 05:23:25 UTC
Last seen:2020-08-27 06:18:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:sAjf7mJ2WJYJpkhU1D8RgznTFHI68+bGpQYjmEmZ/63H22ZbHS5Mp1qx7GCOq9nd:sAjK23SED3PFF8USuZ/AZWMpcvOqPzH
Threatray 2'270 similar samples on MalwareBazaar
TLSH 66C4F195027D970DE1DE0FF798FE21000BB7AE6528ADE289BD75B0A725F27C04912763
Reporter abuse_ch
Tags:exe FormBook Yahoo


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: sonic305-19.consmr.mail.gq1.yahoo.com
Sending IP: 98.137.64.82
From: john sales <sale_john1@yahoo.com>
Subject: : Fwd: Wire Transfer Payment
Attachment: Payment Dco 002.rar (contains "G05kKUODK00JTiA.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Sending a UDP request
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Binary contains a suspicious time stamp
Detected FormBook malware
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 278472 Sample: G05kKUODK00JTiA.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 40 www.zstlwf.xyz 2->40 42 usfree1-ftp.renzhijia.com 2->42 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Multi AV Scanner detection for dropped file 2->54 56 10 other signatures 2->56 9 G05kKUODK00JTiA.exe 7 2->9         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\SwKQsgvNzZ.exe, PE32 9->32 dropped 34 C:\Users\...\SwKQsgvNzZ.exe:Zone.Identifier, ASCII 9->34 dropped 36 C:\Users\user\AppData\Local\...\tmpD09A.tmp, XML 9->36 dropped 38 C:\Users\user\...behaviorgraph05kKUODK00JTiA.exe.log, ASCII 9->38 dropped 68 Tries to detect virtualization through RDTSC time measurements 9->68 70 Injects a PE file into a foreign processes 9->70 13 G05kKUODK00JTiA.exe 9->13         started        16 schtasks.exe 1 9->16         started        signatures6 process7 signatures8 72 Modifies the context of a thread in another process (thread injection) 13->72 74 Maps a DLL or memory area into another process 13->74 76 Sample uses process hollowing technique 13->76 78 Queues an APC in another process (thread injection) 13->78 18 explorer.exe 13->18 injected 22 conhost.exe 16->22         started        process9 dnsIp10 44 bradfordanalytics.com 34.102.136.180, 49742, 49748, 49749 GOOGLEUS United States 18->44 46 www.img6.xyz 18->46 48 2 other IPs or domains 18->48 58 System process connects to network (likely due to code injection or exploit) 18->58 24 msiexec.exe 17 18->24         started        signatures11 process12 file13 28 C:\Users\user\AppData\...\L67logrv.ini, data 24->28 dropped 30 C:\Users\user\AppData\...\L67logri.ini, data 24->30 dropped 60 Detected FormBook malware 24->60 62 Tries to steal Mail credentials (via file access) 24->62 64 Tries to harvest and steal browser information (history, passwords, etc) 24->64 66 3 other signatures 24->66 signatures14
Threat name:
ByteCode-MSIL.Trojan.Swotter
Status:
Malicious
First seen:
2020-08-27 05:25:08 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mentork.info/k8b/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

FormBook

Executable exe 15ea783eaed5ea26907b2c782e5e201a56f2fe0a76005bb42a0b1ae72fe05c9f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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