MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 bfbf73201037462acf28b231212bc311a923ca797168533c3b4d233686f335ef. 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: 11
| SHA256 hash: | bfbf73201037462acf28b231212bc311a923ca797168533c3b4d233686f335ef |
|---|---|
| SHA3-384 hash: | 829555793a0b3812a7cb30ae5c1d699a39a22a9494d22bbffba3fe3dba74baaff5c4fa93145a1f348034221a38a507dc |
| SHA1 hash: | eafdae460f64f50a62a86acf8983fa8611fcf172 |
| MD5 hash: | d0687d4b59de014b53a9ddf103434230 |
| humanhash: | blue-romeo-freddie-social |
| File name: | mmexport1602672825062.pdf.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 753'664 bytes |
| First seen: | 2020-10-17 12:09:14 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:9B7rBdktvd/SPDAwbOcOCQ5R4ltnOynJBBGQ0lTnxxxyw27NcXLTyBj:wSPTblrMalIG7wQITxmw27Ncf |
| Threatray | 2'549 similar samples on MalwareBazaar |
| TLSH | B7F4CF227AD8AF68E1BD17339474440093F9FD979B32CA2E7EE932CD0961F94D621706 |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
abuse_ch
Malspam distributing Formbook:HELO: staxconstruction.com.au
Sending IP: 185.222.57.87
From: 外贸部 <cathy@staxconstruction.com.au>
Subject: RE: payment for oustanding invoices
Attachment: mmexport1602672825062.pdf.img (contains "mmexport1602672825062.pdf.exe")
Intelligence
File Origin
# of uploads :
1
# of downloads :
150
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Double Extension
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
Uses an obfuscated file name to hide its real file extension (double extension)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2020-10-17 11:55:54 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'539 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
rat trojan spyware stealer family:formbook
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Unpacked files
SH256 hash:
afdcaedd7dcabd412de466217986d42f0826e16e285424db7f2874ec8cf4002e
MD5 hash:
38908a7b8a674ed95822c8992c225cbe
SHA1 hash:
1fd4fb5f16d97413169805adc72ea0d327f684c3
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
SH256 hash:
5fc0199f9576558ae7103764edc6d1ecb4faf1d8db76c930fd702c19d992c2c5
MD5 hash:
1a5b0b274963a6debc7d25a4d77e9e1b
SHA1 hash:
fd921c190902c0f84fa5b82dfcd8abb9b2300cc1
SH256 hash:
2d40ab6f1919b17686260de751b43fc3b24934b26408d267d0e4dd996570fb9e
MD5 hash:
b1b298be02d8a9ac1a3b3008a41f6619
SHA1 hash:
a9bc9b0012dee7c0e0268a6bb8c5bb1fbb9d74ea
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
bfbf73201037462acf28b231212bc311a923ca797168533c3b4d233686f335ef
MD5 hash:
d0687d4b59de014b53a9ddf103434230
SHA1 hash:
eafdae460f64f50a62a86acf8983fa8611fcf172
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
f4c66fc7a08e97aa35048e289ce17618
Dropped by
MD5 f4c66fc7a08e97aa35048e289ce17618
Delivery method
Distributed via e-mail attachment
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