MalwareBazaar Database
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Database Entry
Formbook
Vendor detections: 10
| SHA256 hash: | 1f3a78fa36bc0741a38e82e73ea0a214ef806c0d968c70b99aa71c73864be656 |
|---|---|
| SHA3-384 hash: | cb12f27f099c1d640c60dfe11d9acfb4756add59f49d5e5d053e8246fb5377da1f51c6a6886ade07b364d7349ae4a28c |
| SHA1 hash: | d2e3539033e217faa8fa123d2f444eb47ce9c476 |
| MD5 hash: | 451347fc2142b7f84e5cf3e2bca618d8 |
| humanhash: | johnny-hydrogen-texas-dakota |
| File name: | IMAGE-04082020.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 435'200 bytes |
| First seen: | 2020-08-04 13:36:37 UTC |
| Last seen: | 2020-08-04 15:22:26 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger) |
| ssdeep | 6144:RR29grlqTGODDOuq7I1cXfh1aHYYZzwBUn9CwCJz5i2EEoVhv+s:RtEDOa1cXf3aHvZ0BUn3CJz5i+oVhvR |
| Threatray | 5'195 similar samples on MalwareBazaar |
| TLSH | D5942A283A17CE72FDEE0B7D80CB0D144FA71A05516DF64F14AD11D2B8ABB854926F8B |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
abuse_ch
Malspam distributing unidentified malware:HELO: www210b.sakura.ne.jp
Sending IP: 219.94.155.70
From: Anthony <anthony@unitedllc.com>
Subject: RE: Tucker lane
Attachment: IMAGE-04082020.IMG (contains "IMAGE-04082020.exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Initial sample is a PE file and has a suspicious name
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 steal Mail credentials (via file access)
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-04 13:38:10 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
trickbot
Similar samples:
+ 5'185 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
rat trojan spyware stealer family:formbook
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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